Standard Horizon Marine Radio GX3500S User Manual

QUANTUM Series GX3500S  
25 Watt VHF/FM  
ITU Class D DSC Marine Transceiver  
Owner's Manual  
Oversized alphanumeric LCD, knobs and keys  
30 W Loud Hailer with listen back and 4 fog horns, Bells & Whistles  
Direct keypad entry of a channel using the keypad  
Removable ClearVoice speaker microphone with 16/9 key and channel  
selection  
Display shows channel names, and repeats GPS information8  
Capable of connecting 2 optional enhanced RAM+ second station re-  
mote microphones  
DSC distress call automatically broadcasts lat/long and vessel ID8  
DSC position request function and NMEA data input/output to connect to  
GPS Plotter8  
Versatile user-programmable Scanning, Priority Scan and Dual Watch  
One-button access to Channel 16 and 9  
8 with GPS attached  
Download from Www.Somanuals.com. All Manuals Search And Download.  
TABLE OF CONTENTS  
11.3 DSC DISTRESS CALL ................................................................................. 38  
11.3.1 Tansmitting a DSC Distress Call ........................................................ 38  
11.3.2 Receiving a DSC Distress Call.......................................................... 40  
11.4 ALL SHIPS CALL ......................................................................................... 40  
11.4.1 Transmitting an All Ships Call ............................................................ 41  
11.4.2 Receiving an All Ships Call ............................................................... 41  
11.5 INDIVIDUAL CALL ........................................................................................ 42  
11.5.1 Setting up the Individual / Position Call Directory ............................. 42  
11.5.2 Setting up Individual Ringer ............................................................... 43  
11.5.3 Setting up Individual / Group Call Ringer .......................................... 44  
11.5.4 Transmitting an Individual Call ........................................................... 45  
11.5.5 Receiving an Individual Call ............................................................... 47  
11.5.6 Setting up the Call Waiting Function ................................................ 47  
11.6 GROUP CALL ............................................................................................... 48  
11.6.1 Setting up a Group Call ..................................................................... 48  
11.6.2 Transmitting a Group Call .................................................................. 49  
11.6.3 Receiving a Group Call ...................................................................... 51  
11.7 POSITION REQUEST................................................................................... 52  
11.7.1 Setting up Position Reply ................................................................... 52  
11.7.2 Transmitting a Position Request to Another Vessel......................... 53  
11.7.3 Receiving a Position Request ............................................................ 55  
11.8 POSITION SEND .......................................................................................... 56  
11.8.1 Setting up Position Send Ringer ....................................................... 56  
11.8.2 Transmitting a DSC Position Send Call............................................ 57  
11.8.3 Receiving a DSC Position Send Call ............................................... 57  
11.9 MANUAL INPUTTING OF THE GPS LOCATION (LAT/LON) ................... 59  
12 RADIO SETUP MODE ........................................................................................... 60  
12.1 LCD CONTRAST .......................................................................................... 60  
12.2 TIME OFFSET .............................................................................................. 61  
12.3 TIME LOCATION............................................................................................ 62  
12.4 TRUE MAGNETIC CHANGE (NAV display)................................................. 62  
12.5 PRIORITY CHANNEL SET .......................................................................... 63  
12.6 SCAN TYPE .................................................................................................. 63  
12.7 SCAN RESUME TIME ................................................................................. 64  
12.8 KEY BEEP (ON/OFF) ................................................................................... 64  
12.9 WX ALERT .................................................................................................... 65  
12.10 CHANNEL NAME CHANGE ...................................................................... 66  
12.11 NAMING THE RADIO OR RAM+ STATIONS ......................................... 67  
12.12 FOG ALERT TONE FREQUENCY.............................................................. 68  
13 ENHANCED RAM+ MIC OPERTION ..................................................................... 69  
13.1 RAM+ MIC CONTROLS............................................................................... 69  
13.2 INTERCOM OPERTION ............................................................................... 72  
13.2.1 Communication ..................................................................................... 72  
13.2.2 Calling ................................................................................................... 72  
13.3 PA / FOG OPERATION ................................................................................. 73  
13.3.1 Operating the PA / Hailer ....................................................................... 73  
13.3.2 Operating the FOG / HORN................................................................... 73  
13.3 DSC / RADIO SETUP MODE........................................................................ 74  
14 MAINTENANCE ..................................................................................................... 75  
14.1 REPLACEMENT PARTS .............................................................................. 75  
14.2 FACTORY SERVICE .................................................................................... 75  
14.3 TROUBLESHOOTING CHART .................................................................... 76  
15 CHANNEL ASSIGNMENTS ................................................................................... 77  
16 WARRANTY ........................................................................................................... 83  
17 SPECIFICATIONS.................................................................................................. 86  
18 APPENDIX ............................................................................................................. 87  
GX3500S  
Page 3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
1 GENERAL INFORMATION  
The Vertex Standard GX3500S is a VHF/FM transceiver designed for use in  
the frequency range of 156.025 to 163.275 MHz. The GX3500S can be oper-  
ated from 11 to 16 VDC and has a switchable RF output power of 1 watt or 25  
watts.  
The GX3500S is capable of DSC (Digital Selective Calling) Class D operation  
and an Enhanced second station RAM+ mic (CMP25 remote-control speaker/  
microphone with display). Class D operation allows continous receiving of Digi-  
tal Selective Calling functions on channel 70 even if the radio is receiving a call.  
Other features of the GX3500S include: Direct keypad entry of a channel using  
the keypad, 30W PA/Fog, multi-station intercom, scanning, priority scanning,  
submersible speaker mic, high and low voltage warning, and GPS repeatability.  
2 PACKING LIST  
When the package containing the transceiver is first opened, please check it  
for the following contents:  
GX3500S Transceiver  
Mounting Bracket and attaching hardware  
Owner’s Manual  
Quick-Reference Card  
Power Cord  
3 OPTIONS  
MMB-84 .......................................................................... Flush-Mount Bracket  
CMP25B/W ............... Remote-Access Microphone (RAM+ Mic, Black/White)  
CT-100 ............................................... 10-foot Extension Cable for RAM+ Mic  
CVS2500 ............................................................................... Voice Scrambler  
101W....................................................................... White Extension Speaker  
201SW .................................................................... White Extension Speaker  
201SWZ ............................................. White Flush Mount Extension Speaker  
201SB...................................................................... Black Extension Speaker  
201SBK ............................................... Black Flush Mount Extension Speaker  
220SW ..................................................................... 4.5” Round Hail/PA Horn  
240SW ........................................................... 5 x 8 Rectangular Hail/PA Horn  
Page 4  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
4 SAFETY / WARNING INFORMATION  
This radio is restricted to occupational use, work related operations only where  
the radio operator must have the knowledge to control the exposure conditions  
of its passengers and bystanders by maintaining the minimum separation dis-  
tance of 0.6 m (2 feet).  
Failure to observe these restrictions will result in exceeding the FCC RF expo-  
sure limits.  
Antenna Installation:  
The antenna must be located at least 0.6 m (2 feet) away from passengers in  
order to comply with the FCC RF exposure requirements.  
ON-LINE WARRANTY REGISTRATION  
VHF. It should be noted that visiting the Web site from time to time may  
be beneficial to you, as new products are released they will appear on  
the Marine Division of Vertex Standard Web site.  
PRODUCT SUPPORT INQUIRIES  
If you have any questions or comments regarding the use of the GX3500S,  
you can visit the Marine Division of Vertex Standard Web site to send an  
E-Mail or contact the Product Support team at 800-767-2450 M-F 7:00-  
5:00PST.  
GX3500S  
Page 5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
5 FCC RADIO LICENSE INFORMATION  
Vertex Standard radios comply with the Federal Communication Commission  
(FCC) requirements that regulate the Maritime Radio Service.  
STATION LICENSE  
An FCC ship station license is no longer required for any vessel traveling in  
U.S. waters (except Hawaii) which is under 20 meters in length. However, any  
vessel required to carry a marine radio on an international voyage, carrying a  
HF single side band radiotelephone or marine satellite terminal is required to  
have a ship station license. FCC license forms, including applications for ship  
(506) and land station licenses can be downloaded via the Internet at  
www.fcc.gov/forms. To obtain a form from the FCC, call (888) 225-5322.  
RADIO CALL SIGN  
Currently the FCC does not require recreational boaters to have a Ship Radio  
Station License. The USCG recommends the boats registration number and  
the state to be used.  
CANADIAN SHIP STATION LICENSING  
You may need a license when traveling in Canada. If you do need a license  
contact their nearest field office or regional office or write:  
Industry Canada  
Radio Regulatory Branch  
Attn: DOSP  
300 Slater Street  
Ottawa, Ontario  
Canada, KIA 0C8  
FCC / INDUSTRY CANADA INFORMATION  
The following data pertaining to the transceiver is necessary to fill out the li-  
cense application.  
Type Acceptance ......................................................................... FCC Part 80  
Output Power ............................................... 1 Watt (low) and 25 Watts (high)  
Emission......................................................................... 16K0G3E, 16K0G2B  
Frequency Range ..................................................... 156.025 to 163.275 MHz  
FCC Type Number.................................................................... K6630063X30  
Industry Canada Type Approval .............................................511B-30063X3D  
Page 6  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
6 FCC NOTICE  
NOTICE  
Unauthorized changes or modifications to this equipment may void com-  
pliance with FCC Rules. Any change or modification must be approved  
in writing by Marine Division of Vertex Standard.  
NOTICE  
This equipment has been tested and found to comply with the limits for a  
Class B digital device, pursuant to Part 15 of the FCC Rules. These  
limits are designed to provide reasonable protection against harmful in-  
terference in a residential installation. This equipment generates, uses  
and can radiate radio frequency energy and, if not installed and used in  
accordance with the instructions, may cause harmful interference to ra-  
dio communications. However, there is no guarantee that interference  
will not occur in a particular installation. If this equipment does cause  
harmful interference to radio or television reception, which can be deter-  
mined by turning the equipment off and on, the user is encouraged to try  
to correct the interference by one or more of the following measures:  
- Reorient or relocate the receiving antenna.  
- Increase the separation between the equipment and receiver.  
- Connect the equipment into an outlet on a circuit different from that to  
which the receiver is connected.  
- Consult the dealer or an experienced radio/TV technician for help.  
GX3500S  
Page 7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
7 GETTING STARTED  
7.1 ABOUT VHF RADIO  
The radio frequencies used in the VHF marine band lie between 156 and 158  
MHz with some shore stations available between 161 and 163 MHz. The ma-  
rine VHF band provides communications over distances that are essentially  
“line of sight” (VHF signals do not travel well through objects such as buildings,  
hills or trees). Actual transmission range depends much more on antenna type,  
gain and height than on the power output of the transmitter. On a fixed mount  
25W radio transmission expected distances can be greater than 15 miles.  
7.2 SELECTING AN ANTENNA  
Marine antennas are made to radiate signals equally in all horizontal directions,  
but not straight up. The objective of a marine antenna is to enhance the signal  
toward the horizon. The degree to which this is accomplished is called the  
antenna’s gain. It is measured in decibels (dB) and is one of the major factors  
in choosing an antenna. In terms of effective radiated power (ERP), antennas  
are rated on the basis of how much gain they have over a theoretical antenna  
with zero gain. A 3 foot, 3dB gain antenna represents twice as much gain over  
the imaginary antenna.  
Typically a 3 foot 3dB gain stainless steel whip is used on a sailboat mast. The  
longer 8 foot 6dB fiberglass whip is primarily used on power boats that require  
the additional gain.  
Page 8  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
7.3 COAXIAL CABLE  
VHF antennas are connected to the transceiver by means of a coaxial cable –  
a shielded transmission line. Coaxial cable is specified by it’s diameter and  
construction.  
For runs less than 20 feet, RG-58/U, about 1/4 inch in diameter is a good choice.  
For runs over 20 feet but less than 50 feet, the larger RG-8X or RG-213/U  
should be used for cable runs over 50 feet RG-8X should be used. For installa-  
tion of the connector onto the coaxial cable refer to the figure below.  
Adapter  
1/16''  
3/4''  
3/4''  
1 1/8''  
1/8''  
3/8'' 5/8''  
To get your coax cable through a fitting and into your boat’s interior, you  
may have to cut off the end plug and reattach it later. You can do this if  
you follow the directions that come with the connector. Be sure to make  
good soldered connections.  
GX3500S  
Page 9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
8 INSTALLATION  
8.1 LOCATION  
The radio can be mounted at any angle. Choose a mounting location that:  
• is far enough from any compass to avoid any deviation in compass read-  
ing due to the speaker magnet  
• provides accessibility to the front panel controls  
• allows connection to a power source and an antenna  
• has nearby space for installation of a microphone hanger  
• the antenna must be mounted at least 3 feet from radio  
Note: To insure the radio does not affect the compass or radios performance is  
not affected by the antenna location, temporarily connect the radio in the de-  
sired location and:  
a. Examine the compass to see if the radio causes any deviation  
b. Connect the antenna and key the radio. Check to ensure the radio is  
operating correctly by requesting a radio check.  
8.2 ELECTRICAL CONNECTIONS  
CAUTION  
Reverse polarity connections will damage the radio!  
Connect the power cord and antenna to the radio. Antenna and Power Supply  
connections are as follows (see Figure 1):  
Optional HAIL/PA Horn  
Antenna  
Optional Speaker  
Water proof  
Deck Outlet  
Fuse  
Accessory Cable  
Red  
Black  
Power Source  
GPS Navigation Receiver  
Figure 1. General Installation  
1. Mount the antenna at least 3 feet away from the radio. At the rear of the  
radio, connect the antenna cable. It must have a PL259 connector. RG-8/U  
coaxial cable must be used if the antenna is 25 feet or more from the radio.  
RG58 cable can be used for distances less than 25 feet.  
Page 10  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
2. Connect the red power wire to a 13.8 VDC 20% power source. Connect  
the black power wire to a negative ground.  
3. If an optional remote extension speaker is to be used, refer to next section  
for connections.  
4. It is advisable to have a Certified Marine Technician check the power output  
and the standing wave ratio of the antenna after installation.  
8.3 ACCESSORY CABLE  
White: External speaker (+)  
Shield: External speaker (–)  
Red: PA speaker (+)  
Shield: PA speaker (–)  
Blue: NMEA IN (+) from GPS navigation receiver  
Green: NMEA IN (–) from GPS navigation receiver  
Gray: NMEA OUT (+) to GPS navigation receiver  
Brown: NMEA OUT (–) to GPS navigation receiver  
When connecting the external speaker or GPS navigation receiver, strip off  
about 1 inch (2.5 cm) of the specified wire’s insulation, then splice the ends  
together using proper waterproofing techniques.  
PA Speaker  
-/*  
Shield  
Red  
JKL  
(
(
)
)
Blue  
NMEA OUT  
NMEA OUT  
Green  
Gray  
(
(
)
NMEA IN  
NMEA IN  
)
Brown  
Shield  
White  
DISTRESS  
PULL OPEN  
GPS Receiver  
External Speaker  
Wire Color/Description  
Connection Examples  
( )  
WHITE - External Speaker + Connect to external 4 Ohm audio speaker  
(–)  
SHIELD - External Speaker  
( )  
(–)  
Connect to external 4 Ohm audio speaker  
Connect to external 4 Ohm PA speaker  
Connect to external 4 Ohm PA speaker  
RED - PA Speaker +  
SHIELD - PA Speaker  
(+)  
(–)  
BLUE- NMEA Input (+)  
GREEN - NMEA Input  
Connect to NMEA  
Connect to NMEA  
output of GPS  
output of GPS  
(–)  
( )  
Connect to NMEA + input of GPS  
GRAY- NMEA Output (+)  
(–)  
(–)  
input of GPS  
BROWN-NMEA Output  
Connect to NMEA  
GX3500S  
Page 11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
8.4 CONNECTION OF GPS WITH NMEA OUTPUT  
Manufacturer/Model  
STANDARD HORIZON  
Furuno GP30, 36  
Wires  
Green  
GX3500S  
Green  
Gray  
Manufacturer/Model  
Wires  
Orange  
Black (GND)  
Gray  
GX3500S  
Blue  
Lowrance Portable  
Blue  
Green  
Blue  
Brown  
White  
Blue  
Magellan Fixed Mount  
Magellan Portable  
Northstar  
Blue  
Black (GND)  
Orange  
Black (GND)  
Yellow  
Green  
Blue  
Blue  
Green  
Blue  
Furuno GP1650, 1850  
Garmin Fixed Mounts  
Garmin Portables  
White  
Green  
Blue  
Black  
Green  
Blue  
Blue  
Black (GND)  
Yellow  
Green  
Blue  
Black (GND)  
Brown  
Black (GND)  
Yellow  
Green  
Green  
Blue  
Raytheon 420  
Brown  
Green  
Blue  
Green  
Blue  
Raytheon 520 / 620  
Raytheon RL SERIES  
Simrad  
Blue  
JRC GPS500  
Brown  
Green  
Blue  
Green  
Blue  
White  
JRC 100 SERIES  
Green  
Brown  
Green  
Blue  
Black  
Green  
Blue  
White  
JRC 200 SERIES  
White  
Brown  
Green  
Blue  
Black  
Green  
Blue  
Sitex Neptune, Nautilus  
Gray  
Lowrance Fixed Mount  
White  
Brown  
Green  
Black (GND)  
Green  
The GPS must have the NMEA Output turned on and set to 4800 Baud in  
the setup menu. If there is a selection for parity select none.  
For further information on interfacing /setting up your GPS. Please contact  
the manufacturer of the GPS receiver.  
GX3500S can read NMEA-0183 version 2.0 or higher.  
The NMEA supported sentences are:  
Input: GLL, GGA, RMC and GNS (RMC sentence is recommended)  
Output:DSC and DSE  
(DSC sentences to Standard Horizon Plotter for Position Polling)  
If you have further inquires, please feel free to contact Product Support at:  
Phone: (800) 767-2450  
8.5 CHECKING GPS CONNECTIONS  
After connections have been made between the GX3500S and the GPS, a  
small satellite icon will appear on the top right corner of  
the LCD display. To see additional GPS information, press  
[ ]  
the F key momentarily, then press the 6 NAV key.  
[ (  
)]  
The GX3500S shows the Date, Time, SOG and COG.  
Page 12  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
8.6 CHANGING THE GPS TIME  
From the Factory the GX3500S shows GPS satellite time or UTC time. A time  
offset is needed to show the local time in your area.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “Time Set” with the  
CHANNEL selector knob.  
[
3. Press the ENT key.  
]
4. Turn the CHANNEL selector knob to select time off-  
set from UTC. See illustration below to find your off-  
set time from UTC. If “0:00” is assigned, the time is  
the same as UTC (Universal Time Coordinated or  
GMT Greenwich Mean Time).  
[
]
5. Press the ENT key to store the time offset.  
[
]
6. Press the 16/9 key or turn the CHANNEL selector knob to select “Exit,”  
[
]
then press the ENT key to return to the “Radio Setup” menu, select “Exit”  
[
and press the ENT key to return to radio operation.  
]
OFFSET TIME TABLE  
GX3500S  
Page 13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
8.7 CHANGING THE TIME LOCATION  
You may select the time display between local time and UTC (time GPS sends  
to radio). Time is displayed when GPS position (LAT/LON) is displayed by press-  
[ ]  
ing the F key followed by the 6 NAV key.  
[ (  
)]  
[
(
1. Press and hold down the CALL MENU key until  
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “Time Disp” in the  
Radio Setup” menu with the CHANNEL selector  
knob.  
[
]
3. Press the ENT key.  
4. Turn the CHANNEL selector knob to select “UTC” or  
Local.”  
5. Press the ENT key to store the selected setting.  
6. To exit this menu and return to radio operation mode  
[
]
[
press the 16/9 key.  
]
In the local time mode, the display shows the time by the 12-hour system.  
Meanwhile, the display shows the time by the 24-hour system in the UTC mode.  
(
)
(
)
LOCAL” mode  
UTC” mode  
Page 14  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
8.8 CHANGING COG TO TRUE OR MAGNETIC  
Allows customizing the NAV data showing GPS Course Over Ground (COG).  
Factory default is True however following the steps below the COG can be  
changed to Magnetic.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “Magnetic” with the  
CHANNEL selector knob.  
[
3. Press the ENT key.  
]
4. Turn the CHANNEL selector knob to select “On” (rep-  
resenting “Magnetic”) or “Off” (representing “True”).  
[
5. Press the ENT key to store the selected setting.  
]
6. Turn the CHANNEL selector knob to select “Exit,”  
[
]
then press the ENT key to return to the “Radio  
[
]
Setup” menu, select “Exit” and press the ENT key  
to return to radio operation.  
GX3500S  
Page 15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
8.9 OPTIONAL MMB-84 FLUSH MOUNT INSTALLATION  
1. To assist in flush mounting, a template has been included. Use this tem-  
plate to find the mounting location.  
2. Use the template to mark the location where the rectangular hole is to be  
cut. Confirm the space behind the dash or panel is deep enough to accom-  
modate the transceiver (at least 6 inches or 15 cm deep).  
There should be at least 1/2 inch (1.3 cm) between the transceiver’s heatsink  
and any wiring, cables or structures.  
3. Cut out the rectangular hole and insert the transceiver.  
4. Fasten the brackets to the sides of the transceiver with the lock washer nut  
combination; so that the mounting screw base faces the mounting surface  
(see Figure 2).  
5. Turn the adjusting screw to adjust the tension so that the transceiver is tight  
against the mounting surface.  
Bracket  
Adjusting Screw  
Lock-washer nut combination  
Figure 2. MMB-84 Flush Mount Installation  
Page 16  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
8.10 OPTIONAL ENHANCED RAM+ SECOND STATION MIC INSTALLATION  
The GX3500S is capable of using up to 2 Enhanced RAM+ mics to remotely  
control the Radio, DSC and PA/Fog functions. In addition the GX3500S can  
operate as a full function intercom system. With 2 RAM+ mics connected the  
GX3500S or RAM+ mics can selective call each station individually or all at one  
time.  
1. Connect the RAM+ MIC Cable to the RAM MIC CONNECTOR on the rear  
panel, then tighten the Cable Nut (See Figure 3).  
2. Referring to Figure 3, make a 1.2” (30 mm) hole in the wall, then insert the  
RAM+ MIC Cable into this hole. Connect the Gasket and Mount Base to the  
RAM+ MIC Cable Connector using the Nut.  
3. Drill the four Screw holes (approx. 2 mm) on the wall, then install the Mounting  
Base to the wall using four screws.  
4. Put the Rubber Cap on to the Nut. The installation is now complete.  
5. Wires for a external speaker are provided on the RAM+ mic cable. Connect  
any 8 Ohm external speaker. When connected the RAM+ controls the vol-  
ume level of this speaker.  
RAM+ or External Speaker Selection  
By default the RAM+ internal speaker is turned on, however using the RAM+  
mic this speaker can be turned off so the external speaker can be used.  
[
1. Press and hold the CALL/SET key on the RAM+ Mic.  
]
[
]
[
]
2. Using the or keys to select “RAM  
[
]
SPK” and press the CALL/SET key.  
[
]
[
]
3. Press the or key to turn the RAM+  
Speaker “oF.”  
[
4. Press the 16/9 key to exit this mode.  
]
EXP SP Cable for the RAM+ MIC  
Wall  
Gasket  
Cap  
RAM MIC Cable  
Mounting Bracket  
Nut  
Figure 3. Enhanced RAM+ MIC Installation  
GX3500S  
Page 17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
9 CONTROLS AND INDICATORS  
NOTE  
This section defines each control of the transceiver. See Figure 4 for  
location of controls. For detailed operating instructions refer to section  
10 BASIC OPERATION.”  
(
VOLUME CONTROL VOL  
)
Adjusting this control clockwise, increases the audio volume level.  
(
SQUELCH CONTROL SQL  
)
Adjusting this control clockwise, sets the point at which random noise on  
the channel does not activate the audio circuits but a received signal does.  
This point is called the squelch threshold. Further adjustment of the squelch  
control will degrade reception of wanted transmissions.  
MICROPHONE CONNECTOR  
Connect the supplied MH-63A6 Hand Microphone to this jack.  
KEY BUTTON  
[
]
16/9 Key  
Immediately recalls channel 16 from any channel location. Holding down  
[
]
this key recalls channel 9. Pressing the 16/9 key again reverts to the  
previous selected working channel.  
Secondary use  
[
]
[
Press and hold the 16/9 key then press the WX key to switch the  
]
Channel Group.  
[
[
]
WX Key  
Immediately recalls the previously selected NOAA weather channel from  
any channel.  
Secondary use  
[
]
[
Holding down the 16/9 key while pressing the WX key changes the  
]
Channel Group.  
]
H/L Key  
[
]
Toggles between 25 W (High) and 1 W (Low) power. When the H/L key  
is pressed while the transceiver is on channel 13 or 67, the power will  
temporarily switch from LO to HI power until the PTT is released.  
[
The H/L key does not function on transmit inhibited and low power only  
]
channels.  
Page 18  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
-/*  
JKL  
DISTRESS  
PULL OPEN  
Figure 4. Controls and Connectors  
GX3500S  
Page 19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
[
]
PWR Key  
Turns the transceiver on and off. To turn the transceiver on, press and  
hold this key until the LCD turns on. To turn it off, press and hold this key  
until the LCD turns off. When the power is turned on, the transceiver is  
set to the last selected channel.  
CHANNEL SELECTOR KNOB  
Rotary knob used to select channels and to choose menu items (such as the  
[
DSC menu, radio setup menu, and DSC setup menu). The UP ꢀ  
(
)]  
/
[ ( )]  
DOWN keys on the microphone can also be used to select channels and  
menu items.  
When the PA/FOG mode is activated, the CHANNEL selector knob adjust  
the audio output level.  
Secondary Use (Depends on the transceiver version)  
While holding down the [SCAN] key and turning the CHANNEL selector  
knob, you can confirm memory channels for scanning.  
KEYPAD  
[ (  
1 DIM Key  
)]  
When in radio mode, this key is used to directly select channel digit “1” in  
a channel number.  
Secondary use  
[ ]  
[ (  
Press the F key first then press the 1 DIM key, access the LCD Dim-  
)]  
mer menu. Refer to section “10.15 LCD DIMMER” for details.  
[ (  
2 MEM Key  
)]  
When in radio mode, this key is used to directly select channel digit “2” in  
a channel number.  
Secondary use (Depends on the transceiver version)  
[ ]  
Press the F key first then press the 2 MEM key, memorize the se-  
[ (  
)]  
lected channel into the transceiver scan memory for scanning. When  
([ ]  
[ (  
repeat the same procedures F 2 MEM , DELETES the channel  
)])  
from the scan memory. Refer to section “10.12 SCANNING” for details.  
[ (  
3 SCAN Key  
)]  
When in radio mode, this key is used to directly select channel digit “3” in  
a channel number.  
Secondary use (Depends on the transceiver version)  
[ ]  
[ (  
)]  
Press the F key first then press the 3 SCAN key, start and stop the  
scanning of programmed channels. Refer to section “10.12 SCANNING”  
for details.  
Page 20  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
[ (  
4 DW Key  
)]  
When in radio mode, this key is used to directly select channel digit “4” in  
a channel number.  
Secondary use (Depends on the transceiver version)  
[ ]  
[ (  
)]  
Press the F key first then press the 4 DW key, scan for voice commu-  
nications on the priority channel and another selected channel until a  
signal is received on either channel (Dual Watch). Refer to section “10.11  
(
DUAL WATCH TO PRIORITY CHANNEL ” for details.  
)
[ ( )]  
5 IC Key  
When in radio mode, this key is used to directly select channel digit “5” in  
a channel number.  
Secondary use  
[ ]  
[ ( )]  
Press the F key first then press the 5 IC key, when the optional RAM+  
Mic is connected, intercom operation will operate between radio and RAM+  
Mic. Refer to section “10.16 INTERCOM OPERATION” for details.  
[ (  
6 NAV Key  
)]  
When in radio mode, this key is used to directly select channel digit “6” in  
a channel number.  
Secondary use  
[ ]  
[ (  
)]  
Press the F key first then press the 6 NAV key, the LCD displays NAV  
GPS Data, Time, SOG (Speed Over Ground), and COG (Course Over  
Ground) when a GPS is connected to the accessory cable of the  
GX3500S. See section “8.4 CONNECTION OF GPS WITH NMEA OUT-  
PUT” for details.  
[ (  
7 SCRM Key  
)]  
When in radio mode, this key is used to directly select channel digit “7” in  
a channel number.  
Secondary use  
[ ]  
[ (  
)]  
Press the F key first then press the 7 SCRM key, when the optional  
CVS2500 Voice Scrambler Unit is installed, available to operate the Voice  
Scrambler function. Refer to section “10.17 VOICE SCRAMBLER” for  
details.  
[ ( )]  
8 PA Key  
When in radio mode, this key is used to directly select channel digit “8” in  
a channel number.  
Secondary use  
[ ]  
[ ( )]  
Press the F key first then press the 8 PA key, available to operate the  
30 Watt PA function. Refer to section “10.13 PA/FOG OPERATION” for  
details.  
GX3500S  
Page 21  
Download from Www.Somanuals.com. All Manuals Search And Download.  
[ (  
9 FOG Key  
)]  
When in radio mode, this key is used to directly select channel digit “9” in  
a channel number.  
Secondary use  
[ ]  
[ (  
)]  
Press the F key first then press the 9 FOG key, available to operate  
the Fog Horn function. Refer to section “10.13 PA/FOG OPERATION”  
for details.  
[ ]  
0 Key  
When in radio mode, this key is used to directly select channel digit “0” in  
a channel number.  
[
[
]
CLR Key  
[
Press the CLR Key to cancel the menu selection and/or keypad entry.  
]
]
ENT Key  
[
]
Press the ENT Key to determine the menu selection and/or keypad  
entry.  
[
(
CALL MENU Key  
)]  
[
(
)]  
Press the CALL MENU key to access the DSC OPERATION menu.  
The “INDIVIDUAL CALL,” “GROUP CALL,” and “ALL SHIPS CALL” func-  
tions can be accessed from the DSC OPERATION menu.  
Secondary use  
[
(
)]  
Press and hold the CALL MENU key to access the “Radio Setup”  
(refer to section “12 RADIO SETUP”) or “DSC Setup” menu (refer to  
section “11 DIGITAL SELECTIVE CALLING”).  
Radio Setup” menu  
DSC Setup” menu  
Page 22  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
[ ]  
F Key  
[ ]  
Press the F key to activate the “Alternate” key function.  
[
]
DISTRESS Key  
Used to send a DSC Distress Call. To send the distress call refer to section  
11.3.1 (Transmitting A DSC Distress Call).”  
ACCESSORY CONNECTION CABLE  
Connects the GX3500S to a GPS, a PA speaker, and an external speaker.  
DC INPUT CABLE  
Connects the radio to a DC power supply capable of delivering 12V DC.  
RAM+ MIC CONNECTORS  
Connects the GX3500S to the enhanced RAM+ MIC (Remote Access Mi-  
crophone). Refer to section “13 ENHANCED RAM+ MIC OPERATION” for  
details.  
ANTENNA JACK  
Connects an antenna to the transceiver. Use a marine VHF antenna with  
an impedance of 50 ohms.  
PTT (Push-To-Talk) SWITCH  
Keys the transmitter when the transceiver is in radio mode. If the transceiver  
is in the intercom operation mode (between the RAM+ and the GX3500S),  
or PA mode, it activates the GX3500S microphone for voice communica-  
tions.  
MICROPHONE  
Transmits the voice message with reduction of background noise, using  
Clear Voice Noise Reduction Technology.  
MICROPHONE SPEAKER  
The audio heard through internal radio speaker is heard through micro-  
phone speaker.  
[
(
)] [  
(
)]  
UP / DOWN KEYS  
[
The UP and DOWN on the microphone function the same as the  
( )]  
[
( )]  
CHANNEL selector knob on the front panel of the transceiver.  
[
]
16/9 Key  
[
Pressing the 16/9 key immediately recalls channel 16 from any location.  
]
[
Press and hold the 16/9 key to recall channel 9. Pressing the 16/9 key  
]
[
]
again will revert the radio to the previous selected channel.  
GX3500S  
Page 23  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10 BASIC OPERATION  
10.1 RECEPTION  
1. After the transceiver has been installed, ensure that the power supply and  
antenna are properly connected.  
[
]
2. Press and hold the PWR key until the radio turns on.  
3. Turn the SQL knob fully counterclockwise. This state is known as “squelch off”.  
4. Turn up the VOL knob until noise or audio from the speaker is at a comfort-  
able level.  
5. Turn the SQL knob clockwise until the random noise disappears. This state  
is known as the “squelch threshold.”  
6. Turn the CHANNEL selector knob to select the desired channel. Refer to  
the channel chart on page 78 for available channels.  
7. The keypad on the front may be used to directly select channels. Example  
to select channel 68:  
[ (  
)]  
1. Press 6 NAV  
[ ( )]  
2. Press 8 PA  
[
3. Press ENT  
]
[ ]  
In the USA and Canadian modes, press and hold in the 0 key to select the  
“A” channel. Example to select channel 22A:  
[ (  
)]  
)]  
1. Press 2 MEM  
[ (  
2. Press 2 MEM  
[ ]  
3. Press 0 until “A” appears to the right of the channel number  
[
4. Press ENT  
]
8. When a message is received, adjust the volume to the desired listening  
level. The “  
” indicator in the LCD is displayed indicating that the chan-  
nel is being used.  
10.2 TRANSMISSION  
1. Perform steps 1 through 6 of RECEPTION.  
2. Before transmitting, monitor the channel to ensure it is clear.  
THIS IS AN FCC REQUIREMENT!  
3
Press the PTT (push-to-talk) switch. The “  
” indicator in the LCD is  
displayed.  
4. Speak slowly and clearly into the microphone.  
5. When the transmission is finished, release the PTT switch.  
NOTE  
This is a noise-canceling microphone. The oval slot on the bottom of  
microphone should be positioned within 1/2 inch (1.3 cm) from the mouth  
for optimum performance.  
Page 24  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
(
)
10.3 TRANSMIT TIME - OUT TIMER TOT  
When the PTT switch on the microphone is held down, transmit time is limited to  
5 minutes. This limits unintentional transmissions due to a stuck microphone.  
About 10 seconds before automatic transmitter shutdown, a warning beep will be  
heard from the speaker(s). The transceiver will automatically go to receive mode,  
even if the PTT switch is continually held down. Before transmitting again, the PTT  
switch must first be released and then pressed again.  
10.4 SIMPLEX/DUPLEX CHANNEL USE  
Refer to the VHF MARINE CHANNEL CHART (page 78) for instructions on use  
of simplex and duplex channels.  
NOTE  
All channels are factory-programmed in accordance with International,  
Industry Canada (Canada), and FCC (USA) regulations. Mode of opera-  
tion cannot be altered from simplex to duplex or vice-versa.  
10.5 INTERNATIONAL, USA, AND CANADA MODE  
[
]
[
]
1. To change the modes, hold the 16/9 key and press the WX key. The  
mode changes from International to Canadian to USA with each press of  
[
the WX key.  
]
2. “INTL” will be displayed for International mode, and “CAN” will be displayed  
for Canadian mode, and “USA” will be displayed on the LCD for USA mode.  
3. Refer to the VHF MARINE CHANNEL CHART (page 78) for allocated chan-  
nels in each mode.  
10.6 NOAA WEATHER CHANNELS  
NOTE  
NOAA Weather channels are available in the waters of USA and Canada only.  
[
1. To receive a NOAA weather channel, press the WX key from any channel.  
]
The transceiver will go to the last selected weather channel.  
[
2. Turn the CHANNEL selector knob on the radio or UP / DOWN ꢁ  
(
)] [  
(
)]  
keys on the microphone to select a different NOAA weather channel.  
[
3. To exit from the NOAA weather channels, press the WX key. The trans-  
]
ceiver returns to the channel it was on prior to a weather channel.  
10.6.1 NOAA Weather Alert  
In the event of extreme weather disturbances, such as storms and hurricanes,  
the NOAA (National Oceanic and Atmospheric Administration) sends a weather  
alert accompanied by a 1050 Hz tone and subsequent weather report on one of  
the NOAA weather channels. When the Weather Alert feature is enabled (see  
GX3500S  
Page 25  
Download from Www.Somanuals.com. All Manuals Search And Download.  
section “12.9 WX ALERT”), the transceiver is capable of receiving this alert if  
the following is performed:  
1. Program NOAA weather channels into the transceiver’s memory for scan-  
ning. Follow the same procedure as for regular channels under section “10.12.”  
[
2. Press the SCAN key once to start memory scanning or hold down the  
]
[
]
SCAN key during memory scanning to start priority scanning.  
3. The programmed NOAA weather channels will be scanned along with the  
regular-programmed channels. However, scanning will not stop on a nor-  
mal weather broadcast unless a NOAA alert is received.  
4. When an alert is received on a NOAA weather channel, scanning will stop and  
the transceiver will emit a loud beep to alert the user of a NOAA broadcast.  
[
5. Press the WX key to stop the alert tone and receive the weather report.  
]
NOTE  
[
If the WX key is not pressed the alert tone will be emitted for 5 minutes  
]
and then the weather report will be received.  
NOTE  
The Weather Alert feature is also engaged while the transceiver is re-  
ceiving on one of the NOAA weather channels.  
10.6.2 NOAA Weather Alert Testing  
NOAA tests the alert system ever Wednesday between 11AM and 1PM. To test  
the QUANTUM’s NOAA Weather feature, on Wednesday between 11AM and  
1PM, setup as in previous section and confirm the alert is heard.  
10.7 EMERGENCY (CHANNEL 16 USE)  
Channel 16 is known as the Hail and Distress Channel. An emergency is de-  
fined as a threat to life or property. In such instances, be sure the transceiver is  
on and set to CHANNEL 16. Then use the following procedure:  
1. Press the microphone push-to-talk switch and say “Mayday, Mayday, May-  
” (your vessel’s name).  
” (your vessel’s name).  
day. This is  
,
,
2. Then repeat once: “Mayday,  
3. Now report your position in latitude/longitude, or by giving a true or mag-  
netic bearing (state which) to a well-known landmark such as a navigation  
aid or geographic feature such as an island or harbor entry.  
4. Explain the nature of your distress (sinking, collision, aground, fire, heart  
attack, life-threatening injury, etc.).  
5. State the kind of assistance your desire (pumps, medical aid, etc.).  
6. Report the number of persons aboard and condition of any injured.  
7. Estimate the present seaworthiness and condition of your vessel.  
Page 26  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
8. Give your vessel’s description: length, design (power or sail), color and  
other distinguishing marks. The total transmission should not exceed 1  
minute.  
9. End the message by saying “OVER.” Release the microphone button and  
listen.  
10. If there is no answer, repeat the above procedure. If there is still no re-  
sponse, try another channel.  
(
10.8 CALLING ANOTHER VESSEL CHANNEL 16 OR 9  
Channel 16 may be used for initial contact (hailing) with another vessel.  
)
However, its most important use is for emergency messages. This channel  
must be monitored at all times except when actually using another channel.  
It is monitored by the U.S. and Canadian Coast Guards and by other vessels.  
Use of channel 16 for hailing must be limited to initial contact only. Calling  
should not exceed 30 seconds, but may be repeated 3 times at 2-minute inter-  
vals. In areas of heavy radio traffic, congestion on channel 16 resulting from its  
use as a hailing channel can be reduced significantly in U.S. waters by using  
channel 9 as the initial contact (hailing) channel for non-emergency communi-  
cations. Here, also, calling time should not exceed 30 seconds but may be  
repeated 3 times at 2-minute intervals.  
Prior to making contact with another vessel, refer to the channel charts in this  
manual, and select an appropriate channel for communications after initial con-  
tact. For example, Channels 68 and 69 are some of the channels available to  
non-commercial (recreational) boaters. Monitor your desired channel in advance  
to make sure you will not be interrupting other traffic, and then go back to either  
channel 16 or 9 for your initial contact.  
When the hailing channel (16 or 9) is clear, state the name of the other vessel  
you wish to call and then “this is” followed by the name of your vessel and your  
Station License (Call Sign). When the other vessel returns your call, immedi-  
ately request another channel by saying “go to,” the number of the other chan-  
nel, and “over.” Then switch to the new channel. When the new channel is not  
busy, call the other vessel.  
After a transmission, say “over,” and release the microphone’s push-to-talk  
(PTT) switch. When all communication with the other vessel is completed, end  
the last transmission by stating your Call Sign and the word “out.” Note that it is  
not necessary to state your Call Sign with each transmission, only at the begin-  
ning and end of the contact.  
Remember to return to Channel 16 when not using another channel. Some  
radios automatically monitor Channel 16 even when set to other channels or  
when scanning.  
GX3500S  
Page 27  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10.9 MAKING TELEPHONE CALLS  
To make a radiotelephone call, use a channel designated for this purpose, The  
fastest way to learn which channels are used for radiotelephone traffic is to ask  
at a local marina. Channels available for such traffic are designated Public  
Correspondence channels on the channel charts in this manual. Some ex-  
amples for USA use are Channels 24, 25, 26, 27, 28, 84, 85, 86, and 87. Call  
the marine operator and identify yourself by your vessel’s name, The marine  
operator will then ask you how you will pay for the call (telephone credit card,  
collect, etc.) and then link your radio transmission to the telephone lines.  
The marine telephone company managing the VHF channel you are using may  
charge a link-up fee in addition to the cost of the call.  
10.10 OPERATING ON CHANNELS 13 AND 67  
Channel 13 is used at docks and bridges and by vessels maneuvering in port.  
Messages on this channel must concern navigation only, such as meeting and  
passing in restricted waters.  
Channel 67 is used for navigational traffic between vessels.  
By regulation, power is normally limited to 1 Watt on these channels. Your radio  
is programmed to automatically reduce power to this limit on these channels.  
However, in certain situations it may be necessary to temporarily use a higher  
[
power. See page 18 ( H/L key) for means to temporarily override the low-power  
]
limit on these two channels.  
(
)
10.11 DUAL WATCH TO PRIORITY CHANNEL  
Dual watch allows the radio to monitor one channel and the assigned Priority  
channel. By default the priority channel is set to 16, however the priority chan-  
nel may be changed by referring to section 12.5 Priority Channel set.  
1. Adjust the SQL knob until the background noise disappears.  
2. Select the channel you wish to dual watch to “Priority channel.”  
[ ]  
[ (  
)]  
3. Press the F key followed by the 4 DW key.  
The display will scan between Priority channel and  
the channel that was selected in step 2.  
If a transmission is received on the channel selected  
in step 2, the GX3500S will dual watch between the  
working channel and the Priority channel.  
[
4. To stop Dual Watch, press the CLR key or press the F key followed by  
]
[ ]  
[ ( )]  
the 4 DW key again.  
Page 28  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10.12 SCANNING  
Allows the user to select the scan type from Memory scan or Priority scan.  
“Memory scan” scans the channels that were programmed into memory. “Pri-  
ority scan” scans the channels programmed in memory with the priority chan-  
nel.  
10.12.1 Selecting the Scan Type  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “SCAN Type” in the  
Radio Setup” menu with the CHANNEL selector  
knob.  
[
]
3. Press the ENT key.  
4. Turn the CHANNEL selector knob to select “Prior-  
ity” or “Memory.”  
[
5. Press the ENT key to store the selected setting.  
]
6. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
(
10.12.2 Memory Scanning M-SCAN  
)
1. Adjust the SQL knob until background noise disappears.  
2. Select a desired channel to be scanned using the  
[ ]  
CHANNEL selector knob. Press the F key followed  
[ (  
)]  
by the 2 MEM key, “MEM” will appear on the LCD  
which indicates the channel has been programmed  
into the transceivers memory.  
3. Repeat step 2 for all the desired channels to be scanned.  
4. To DELETE a channel from the transceiver’s memory, select the channel  
[ ]  
then press the F key followed by the 2 MEM key, “MEM” will disappear  
[ (  
)]  
in the LCD.  
[ ]  
5. To start scanning, press the F key followed by the  
[ ( )]  
3 SCAN key.  
M-SCAN” appears on the LCD. Scanning will pro-  
ceed from the lowest to the highest programmed  
channel number and will stop on a channel when a transmission is received.  
6. The channel number will blink during reception.  
[
7. To stop scanning, press the 16/9 , WX , CALL MENU , or PTT key.  
] [  
] [  
(
)]  
GX3500S  
Page 29  
Download from Www.Somanuals.com. All Manuals Search And Download.  
(
10.12.3 Priority Scanning P-SCAN  
)
In the default setting, Channel 16 is set as the priority channel. You may change  
the priority channel to the desired channel from the Channel 16 by the Radio  
Setup Mode, refer to section “12.5 PRIORITY CHANNEL SET.”  
1. Adjust the SQL knob until background noise disappears.  
2. Select a desired channel to be scanned using the  
[ ]  
CHANNEL selector knob. Press the F key followed  
[ (  
)]  
by the 2 MEM key, “MEM” will appear on the LCD  
which indicates the channel has been programmed  
into the transceivers memory.  
3. Repeat step 2 for all the desired channels to be scanned.  
4. To DELETE a channel from the transceiver’s memory, select the channel  
[ ]  
then press the F key followed by the 2 MEM key, “MEM” will disappear  
[ (  
)]  
in the LCD.  
[ ]  
5. To start priority scanning, press the F key followed  
[ (  
)]  
by the 3 SCAN key. “P-SCAN” appears on the LCD.  
Scanning will proceed between the memorized chan-  
nels and the priority channel. CH 16 the priority chan-  
nel will be scanned after each programmed channel.  
[
6. To stop scanning, press the 16/9 , WX , CALL MENU , or PTT key.  
] [  
] [  
(
)]  
You may change the scan resume time by the Radio Setup Mode, refer to  
section “12.7 SCAN RESUME TIME.”  
10.13 PA/FOG OPERATION  
PA/FOG mode allows the transceiver to be used as a 30W hailer when an  
optional STANDARD HORIZON 220SW or 240SW HAIL/PA Horn is installed.  
When in Hail mode the HAIL/PA Listen’s Back (acts as a microphone and sends  
sound to the front panel speaker) through the HAIL/PA speaker which provides  
two-way communications through the HAIL/PA speaker.  
NOTE  
When in PA or FOG mode the GX3500S will receive the last selected VHF  
channel before entering into the PA or FOG mode and receive DSC calls.  
PA HAIL mode:  
Allows the transceiver to be used as a power hailer when  
an optional STANDARD HORIZON 220SW or 240SW  
HAIL/PA Horn is installed. The Hail mode has a listen-back  
feature which provides two way communication through  
the HAIL/PA speaker.  
FOG HORN mode: Automatic signaling is transmitted through the HAIL/PA  
speaker.  
Page 30  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10.13.1 Operating the PA HAIL mode  
[ ] [ ( )]  
1. Press the F key followed by the 8 PA key to acti-  
vate the PA HAIL mode.  
2. Press the PTT switch to speak through the HAIL/PA  
speaker.  
Rotate the CHANNEL selector knob to control the  
AF output level. The AF output level can be set from  
0 to 30 watts.  
3. To exit the PA HAIL mode and return to radio opera-  
[ ] [ ( )]  
tion mode, press the F key followed by the 8 PA key again.  
10.13.2 Operating the FOG HORN mode  
Operator can select from Underway, Stop, Sail, Tow, Horn, Siren, Aground, or  
Anchor. Please refer to page 87 for FOG Horn Timing Chart.  
[ ]  
1. Press the F key followed by the 9 FOG key, acti-  
[ (  
)]  
vate the “FOG HORN” menu.  
2. Turn the CHANNEL selector knob to select the one  
of the eight functions described above.  
[
]
3. Press the ENT key.  
4. On the “Horn” and “Siren” modes, press the PTT  
switch to activate the tone through the HAIL/PA  
speaker.  
Rotate the CHANNEL selector knob to control the  
AF output level. The AF output level can be set from  
0 to 30 watts.  
5. To exit the “FOG HORN” mode and return to radio operation mode, press  
[ ]  
the F key followed by the 9 FOG key again.  
[ (  
)]  
10.14 NAVIGATION INDICATION  
The transceiver has the ability to display Date, Time, SOG, COG, as well as the  
position (LAT/LON), when connected to a GPS receiver.  
[ ]  
[ (  
)]  
1. Press the F key followed by the 6 NAV key, dis-  
play the position information on the LCD. If the GPS  
receiver is not receiving a fix, the display will be as  
shown in the illustration on the right.  
[ ]  
2. To hide the position information, press the F key  
[ ( )]  
followed by the 6 NAV key again.  
GX3500S  
Page 31  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10.15 LCD DIMMER  
Allows setting up the backlight intensity or to turn it off.  
[ ]  
[ (  
)]  
1. Press the F key followed by the 1 DIM key to en-  
abling the setting up the backlight intensity.  
2. Turn the CHANNEL selector knob to select the de-  
sired backlight intensity. You will be able to see the  
effects of your changes.  
[ ]  
3. When you have completed the adjustment, press the F key followed by  
[ (  
the 1 DIM key again, return to radio operation mode.  
)]  
10.16 INTERCOM OPERATION  
If the RAM+ Mic is connected to the GX3500S, you may communicate between  
the GX3500S and RAM+ Mic, or RAM+ and RAM+ Mic (Refer to section “13.2  
INTERCOM OPERATION”).  
RAM 1  
RAM 2  
RAM 1  
RAM 2  
M
E
M
IC  
M
EM  
IC  
M
EM  
IC  
M
EM  
I
C
WX  
WX  
WX  
WX  
S
CA  
N
DW  
S
CA  
N
DW  
SCA  
N
DW  
SCA  
N
DW  
CALL  
ET  
CALL  
S
C
A
L
L
C
A
L
L
NA  
V
16  
9
NAV  
16  
9
NAV  
16  
9
NA  
V
16  
9
S
E
T
S
E
T
S
E
T
-/  
*
-/  
*
JKL  
JK  
L
D
IST  
R
E
S
S
DISTRESS  
PU LL OPE  
P
U
L
L
O
P
E
N
N
RAM 1  
GX3500S  
RAM 1  
RAM 2  
RAM 1  
RAM 2  
M
E
M
IC  
M
EM  
IC  
M
EM  
IC  
M
EM  
I
C
WX  
WX  
WX  
WX  
S
CA  
N
DW  
S
CA  
N
DW  
SCA  
N
DW  
SCA  
N
DW  
CALL  
ET  
CALL  
S
C
A
L
L
C
A
L
L
NA  
V
NAV  
NAV  
NA  
V
16  
9
16  
9
16  
9
16  
9
S
E
T
S
E
T
S
E
T
-/  
*
-/  
*
JKL  
JK  
L
D
IST  
R
E
S
S
DISTRESS  
PU LL OPE  
P
U
L
L
O
P
E
N
N
RAM 1  
RAM 2  
Page 32  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10.16.1 Communication  
[ ]  
1. Press the F key followed by the 5 IC key, the mode  
[ ( )]  
is changed to “INTERCOM” mode.  
2. If your GX3500S is equipped two RAM+ Mic’s, se-  
lect the companion you wish to communicate (RAM1,  
[
]
RAM2, or ALL) with the CHANNEL selector knob, then press the ENT key.  
3. When the “INTERCOM” operation is  
activated, “Intercom” is displayed on  
the GX3500S, and “IC” is displayed on  
the RAM+ Mic.  
(
)
GX3500S’s PTT switch is pressed  
4. Press the PTT switch. “Talk” will be  
shown on the display.  
NOTE: A warning beep will be emitted  
when the GX3500S microphone’s PTT  
switch is pressed while the RAM+ Mic’s  
PTT switch is pressed.  
(
)
RAM+ Mic’s PTT switch is pressed  
5. Speak slowly and clearly into the microphone, hold the microphone about  
1/2 inch away from your mouth.  
6. When finished, release the PTT switch.  
7. To exit the “INTERCOM” mode and return to radio operation mode, press  
[ ] [ ( )]  
the F key followed by the 5 IC key again.  
10.16.2 Calling  
Press and hold the 5 IC key for 1 second when the “INTERCOM” operation is  
activated, a calling beep is emitted twice from the transceiver speaker.  
[ ( )]  
NOTE  
When both RAM+ microphones are set to inter-  
com mode, the GX3500S will be temporarily dis-  
abled until the RAM+(s) exit the RAM+ to RAM+  
intercom mode.  
GX3500S  
Page 33  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10.17 VOICE SCRAMBLER  
If privacy of communications is desired, a CVS2500 voice scrambler (VS) can  
be installed in the transceiver. Contact your Dealer to have a CVS2500 installed.  
[ ]  
[ (  
)]  
1. Press the F key followed by the 7 SCRM key, the  
voice scrambler is activated. “VS” will appear on the  
LCD.  
[ ]  
2. Press the F key then press and hold the 7 SCRM  
[ (  
)]  
key for 1 second, the “SCRM Code” will appear.  
3. Turn the CHANNEL selector knob to change the  
scrambler code. The scrambler code can be set from  
0” to “3.”  
[
]
4. Press the ENT key to save the scrambler code and return to radio opera-  
tion mode (with voice scrambler).  
5. Monitor the channel before transmitting.  
[ ]  
6. To disable the voice scrambler, press the F key followed by the 7 SCRM  
[ (  
)]  
key again.  
Page 34  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MEMO  
GX3500S  
Page 35  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11 DIGITAL SELECTIVE CALLING  
11.1 GENERAL  
WARNING  
This radio is designed to generate a digital maritime distress and safety  
call to facilitate search and rescue. To be effective as a safety device,  
this equipment must be used only within communication range of a shore-  
based VHF marine channel 70 distress and safety watch system. The  
range of signal may vary but under normal conditions should be approxi-  
mately 20 nautical miles.  
NOTE  
WARNING  
STICKER  
A DSC Warning sticker is included  
with the GX3500S. To comply with  
FCC regulations this sticker must be  
-*/  
JK  
L
mounted in a location that can be eas-  
ily viewed from the location of the  
GX3500S. Make sure the chosen lo-  
cation is clean and dry before apply-  
ing the sticker.  
DI  
S
T
R
E
S
S
P
U
L
L
O
P
E
N
Digital Selective Calling is a semi-automated method of establishing a radio  
call, it has been designated by the International Maritime Organization (IMO)  
as an international standard for establishing VHF, MF and HF radio calls. It has  
also been designated as part of the Global Maritime Distress and Safety Sys-  
tem (GMDSS). It is planned that DSC will eventually replace aural watches on  
distress frequencies and will be used to announce routine and urgent maritime  
safety information broadcasts.  
This new system allows mariners to instantly send a distress call with GPS posi-  
tion (when connected to the transceiver) to the Coast Guard and other vessels  
within range of the transmission. DSC will also allow mariners to initiate or receive  
Distress, Urgency, Safety, Routine, POSITION REQUEST, POSITION SEND, and  
Group calls to or from another vessel equipped with a DSC transceiver.  
Page 36  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.2 MARITIME MOBILE SERVICE IDENTITY (MMSI)  
11.2.1 What is an MMSI?  
An MMSI is a nine digit number used on Marine Transceivers capable of using  
Digital Selective Calling (DSC). This number is used like a telephone number to  
selectively call other vessels.  
THIS NUMBER MUST BE PROGRAMMED INTO THE RADIO TO OPERATE  
THE GX3500S DSC FUCTIONS.  
How can I obtain an MMSI assignment?  
11.2.2 Programming the MMSI  
WARNING  
User MMSI can be input only twice. If the user tries to input an MMSI  
more than twice, the radio will show the display on  
the right. If the user needs to change the MMSI  
more than twice, the transceiver will have to be  
sent to Factory Service. Refer to the section “14.2.  
FACTORY SERVICE.”  
[
1. Press and hold down the CALL MENU key until  
(
)]  
the “Radio Setup” menu appears.  
2. Turn the CHANNEL selector knob to the left to se-  
lect “DSC Setup” menu.  
[
]
3. Press the ENT key, then select “User MMSI” with  
the CHANNEL selector knob.  
[
]
4. Press the ENT key. The “User MMSI” number will  
appear, and the first digit will be flashing.  
5. Enter the your MMSI (up to nine digits) from the key-  
pad.  
[
]
6. Press and hold the ENT key to store the number in  
memory.  
7. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
GX3500S  
Page 37  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.3 DSC DISTRESS CALL  
The GX3500S is capable of transmitting and receiving DSC Distress messages  
to all DSC radios. The GX3500S may be connected to a GPS to also transmit  
the Latitude, Longitude of the vessel.  
11.3.1 Transmitting a DSC Distress Call  
NOTE  
To be able to transmit a DSC distress call an MMSI number must be  
programmed, refer to section “11.2.2 Programming the MMSI.”  
In order for your ships location to be transmitted a GPS must be connected to  
the GX3500S, refer to section “8.4 CONNECTION OF GPS WITH NMEA OUT-  
PUT.”  
[
1. Lift the red spring loaded DISTRESS cover and press the DISTRESS key.  
]
The “DISTRESS” menu will appear on the LCD.  
[
]
2. Press and hold the DISTRESS key. The radios dis-  
play will count down (3-2-1) and then transmit the  
Distress call.  
3. When the distress signal is sent, CH70 and “  
icon will appear on the LCD. After the message has  
been sent, the radio will sound a Distress Alarm.  
4. The transceiver will watch for a DSC acknowledg-  
ment transmission on CH70 and also receive calls  
on CH16.  
5. If an acknowledgement is received, select channel  
16 and advise your distress situation.  
6. If no acknowledgment is received, the distress call is  
repeated in 4 minute intervals until a DSC acknowl-  
edgment is received.  
7. When a DSC Distress acknowledgment is received,  
a distress alarm sounds and channel 16 is automati-  
cally selected. The LCD shows the MMSI of the ship  
responding to your distress.  
RECEIVED ACK: acknowledgment signal is received.  
RECEIVED RLY: relay signal is received from another vessel or coast station.  
8. To cancel the DSC distress alarm signal from the speaker, press any key.  
Page 38  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Transmitting a DSC Distress Call with Nature of Distress  
The GX3500S is capable of transmitting a DSC Distress Call with the following  
“Nature of Distress” categories:  
Undesignated, Fire, Flooding, Collision, Grounding, Capsizing, Sinking,  
Adrift, Abandoning, Piracy, MOB  
1. Lift the red spring loaded DISTRESS cover and press the [DISTRESS] key.  
The “DISTRESS” menu will appear on the LCD.  
2. Turn the CHANNEL selector knob to select the de-  
sired nature of distress category.  
[
]
3. Press and hold the DISTRESS key. The radios dis-  
play will count down (3-2-1) and then transmit the  
Distress call.  
4. When the distress signal is sent, CH70 and “  
icon will appear on the LCD. After the message has  
been sent, the radio will sound a Distress Alarm.  
5. The transceiver will watch for a DSC acknowledg-  
ment transmission on CH70 and also receive calls  
on CH16.  
6. If an acknowledgement is received, select channel  
16 and advise your distress situation.  
7. If no acknowledgment is received, the distress call is  
repeated in 4 minute intervals until a DSC acknowl-  
edgment is received.  
8. When a DSC Distress acknowledgment is received,  
a distress alarm sounds and channel 16 is automati-  
cally selected. The LCD shows the MMSI of the ship  
responding to your distress.  
RECEIVED ACK: acknowledgment signal is received.  
RECEIVED RLY: relay signal is received from another vessel or coast station.  
9. To cancel the DSC distress alarm signal from the speaker, press any key.  
Cancel a DSC Distress Call  
If a DSC Distress call was sent by error the GX3500S  
allows you to send a message to other vessels to cancel  
the Distress Call that was made in error.  
[
Press the CLR key, then press the ENT key.  
]
[
]
GX3500S  
Page 39  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.3.2 Receiving a DSC Distress Call  
1. When a DSC Distress call is received, an emergency  
alarm sounds.  
Then channel 16 is automatically selected.  
2. Press any key to stop the alarm.  
3. Turn the CHANNEL selector knob to change the dis-  
play to show the position of the vessel in distress.  
4
If the position of the vessel distress data does not  
include position, the LCD will show the display on the  
left.  
NOTE  
You must continue monitoring channel 16 as a coast station may require  
assistance in the rescue attempt.  
11.4 ALL SHIPS CALL  
The All Ships Call function allows contact to be established with other vessel  
stations without having their ID in the individual calling directory. Also, priority  
for the call can be designated as Urgency or Safety.  
URGENCY Call: This type of call is used when a vessel may not truly be in  
distress, but have a potential problem that may lead to a dis-  
tress situation. This call is the same as saying PAN PAN PAN  
on channel 16.  
SAFETY Call: Used to transmit boating safety information to other vessels.  
This message usually contains information about an overdue  
boat, debris in the water, loss of a navigation aid or an impor-  
tant meteorological message. This call is the same as saying  
Securite, Securite, Securite.”  
Page 40  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.4.1 Transmitting an All Ships Call  
[
1. Press the CALL MENU key. The “DSC Operation”  
(
)]  
menu will appear.  
2. Turn the CHANNEL selector knob to select “All Ships.”  
[
3. Press the ENT key. (To cancel, turn the CHANNEL  
]
selector knob to select “Exit.”)  
4. Turn the CHANNEL selector knob to select the call  
(“Urgency” or “Safety”).  
[
]
5. Press the ENT key to transmit the selected type of  
all ships DSC call.  
6. After the ALL SHIPS CALL is transmitted, the trans-  
ceiver will switch to CH16.  
7. Listen to the channel to make sure it is not busy, then  
key the microphone and say PAN PAN PAN or  
“Securite, Securite, Securite” depending on the pri-  
ority of the call. Say your call sign and announce the  
channel you wish to switch to for communications.  
11.4.2 Receiving an All Ships Call  
1. When an all ships call is received, an emergency  
alarm sounds.  
The radio will automatically change to channel 16.  
2. Press any key to stop the alarm.  
3. Turn the CHANNEL selector knob to see the MMSI  
of the vessel transmitting the All Ships Call.  
4. Monitor channel 16 or traffic channel until the UR-  
GENCY voice communication is completed.  
GX3500S  
Page 41  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.5 INDIVIDUAL CALL  
This feature allows the GX3500S to contact another vessel with a DSC VHF  
radio and automatically switch the receiving radio to a desired communications  
channel. This feature is similar to calling a vessel on CH16 and requesting to  
go to another channel (switching to the channel is private between the two  
stations).  
11.5.1 Setting up the Individual / Position Call Directory  
The GX3500S has a DSC directory that allows you to store a vessel or person’s  
name and the MMSI number associated with vessels you wish to transmit Indi-  
vidual calls, Position Requests and Position Send transmissions.  
To transmit an Individual call you must program this directory with information  
of the persons you wish to call, similar to a cellular phones telephone directory.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
2. Turn the CHANNEL selector knob to select “DSC  
Setup” menu.  
[
3. Press the ENT key, then select “INDIV DIR” with the  
]
CHANNEL selector knob.  
[
4. Press the ENT key, then select “Add” with the CHAN-  
]
NEL selector knob.  
[
5. Press the ENT key.  
]
6. Press the one of the Keypad keys to enter the first  
letter of the name of the vessel or person you want to  
reference in the directory.  
[ (  
Example: Press the 2 MEM key repeatedly to toggle  
)]  
among the seven available characters associated  
with that key: 2  
If a mistake was made entering in the name, press-  
A
B
C
a
b
c.  
[
ing the CLR key to delete the wrong character.  
]
[
]
7. Press the ENT key to store the first letter in the name  
and step to the next letter to the right.  
8. Repeat step 6 and 7 until the name is complete. The  
name can consist of up to eleven characters, if you  
[
do not use all eleven characters press the ENT key to move to the next  
]
space. This method can also be used to enter a blank space in the name.  
[
To clear the previous letter, press the CLR key.  
]
[
]
9. After the eleventh letter or space has been entered, press the ENT key to  
advance to the MMSI (Maritime Mobile Service Identity Number) number  
entry.  
Page 42  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10. Enter the MMSI number by the keypad. If a mistake  
[
was made entering in the number, pressing the CLR  
]
key to delete the wrong character.  
11. To store the data entered, press and hold the ENT  
key.  
[
]
12. To enter another individual address, repeat steps 4 through 12.  
[
13. To exit this menu and return to radio operation mode press the 16/9 key.  
]
NOTE  
Selecting “Next” or “Exit” will automatically save the name and MMSI  
number into memory.  
11.5.2 Setting up Individual Reply  
Allows setting up the radio to automatically (default setting) or manually re-  
spond to a DSC Individual call requesting you to switch to a working channel for  
voice communications. When Manual is selected the MMSI of the calling ves-  
sel is shown allowing you to see who is calling. This function is similar to caller  
id on a cellular phone.  
[
(
1. Press and hold down the CALL MENU key until  
)]  
Radio Setup” menu appears.  
2. Turn the CHANNEL selector knob to select “DSC  
Setup” menu.  
[
]
3. Press the ENT key, then select “INDIV Reply” with  
the CHANNEL selector knob.  
[
]
4. Press the ENT key.  
5. Turn the CHANNEL selector knob to select “Auto”  
or “Manual.”  
[
6. Press the ENT key to store the selected setting.  
]
7. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
GX3500S  
Page 43  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.5.3 Setting up the Individual/Group Call Ringer  
When a Individual Call or Group Call is received the radio will produce a ringing  
tone for 3 minutes. This selection allows the Individual Call ringer time to be  
changed.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appear.  
2. Turn the CHANNEL selector knob to select “DSC  
Setup” menu.  
[
3. Press the ENT key, then select “INDIV Ring” with  
]
the CHANNEL selector knob.  
[
]
4. Press the ENT key.  
5. Turn the CHANNEL selector knob to select ringing  
time of a Individual Call.  
[
6. Press the ENT key to store the selected setting.  
]
7. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
The GX3500S has the capability to turn off the Individual call ringer.  
[
(
1. Press and hold down the CALL MENU key until  
)]  
Radio Setup” menu appear.  
2. Turn the CHANNEL selector knob to select “DSC  
Setup” menu.  
[
3. Press the ENT key, then select “DSC Beep” with the  
]
CHANNEL selector knob.  
[
4. Press the ENT key.  
]
5. Turn the CHANNEL selector knob to select “Individual”  
if you wish to disable the Individual Call ringer, or  
Group” if you wish to disable the Group Call ringer  
[
]
and press the ENT key.  
6. Turn the CHANNEL selector knob to select “Off.”  
[
7. Press the ENT key to store the selected setting.  
]
8. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
If you wish to return to enabling the ringer tone, just re-  
peat the above procedure, turning the CHANNEL selec-  
tor knob to select “On” in step “6” above.  
Page 44  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.5.4 Transmitting an Individual Call  
This feature allows the user to contact another vessel with a DSC radio. This  
feature is similar to calling a vessel on CH16 and requesting to go to another  
channel.  
Pre-Programmable Calling  
[
1. Press the CALL MENU key. The “DSC Operation”  
(
)]  
menu will appear.  
2. Turn the CHANNEL selector knob to select “Indi-  
vidual.” (To cancel, select “Exit” with the CHANNEL  
[
]
selector knob or press the 16/9 key.)  
[
3. Press the ENT key. The transceiver will beep, and  
]
the “Individual directory” will appear.  
4. Turn the CHANNEL selector knob to select the “Indi-  
vidual” you want to contact.  
[
5. Press the ENT key, then turn the CHANNEL selec-  
]
tor knob to select the operating channel you want to  
[
communicate on and press the ENT key.  
]
[
6. Press the ENT key again to transmit the individual  
]
DSC signal.  
7. After INDIVIDUAL CALL is transmitted, the trans-  
ceiver will wait 8 seconds for the acknowledgment. If  
the reply signal is not received, the transceiver will  
transmit again.  
8. After the second INDIVIDUAL CALL is transmitted, if the reply signal is not  
received, the display will be as shown in the illustra-  
tion on the right. To send the call again, press the  
[
]
ENT key.  
9. When an individual call acknowledgment is received,  
the established channel is automatically changed to  
the channel which is selected on step 5 above and a  
ringing tone sounds.  
any  
10. Press  
key to listen to the channel to make sure it  
is not busy, then key the microphone and call the  
other vessel you desire to communicate with.  
GX3500S  
Page 45  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Manual Calling  
You may enter an MMSI number manually to contact without the Setting up the  
Individual Directory.  
[
1. Press the CALL MENU key. The “DSC Operation”  
(
)]  
menu will appear.  
2. Turn the CHANNEL selector knob to select “Indi-  
vidual.” (To cancel, select “Exit” with the CHANNEL  
[
selector knob or press the 16/9 key.)  
]
[
]
3. Press the ENT key. The transceiver will beep, and  
the “Individual directory” will appear.  
4. Turn the CHANNEL selector knob to select “Manual,”  
[
then press the ENT key.  
]
5. Enter the MMSI number (nine digits) which you want  
[
to contact by the keypad, then press the ENT key.  
]
6. Turn the CHANNEL selector knob to select “Manual,”  
[
]
then press the ENT key.  
7. Turn the CHANNEL selector knob to select the oper-  
ating channel which you want to use for communica-  
[
tion, then press the ENT key.  
]
[
]
8. Press the ENT key again to transmit the individual  
DSC signal.  
9. After INDIVIDUAL CALL is transmitted, the trans-  
ceiver will wait 8 seconds for the acknowledgment. If  
the reply signal is not received, the transceiver will  
transmit again.  
10. After the second INDIVIDUAL CALL is transmitted, if  
the reply signal is not received, the display will be as  
shown in the illustration on the right. To send the call  
[
]
again, press the ENT key or to exit the mode, press  
[
the CLR key.  
]
11. When an individual call acknowledgment is received,  
the established channel is automatically changed to  
the channel which is selected on step 5 above and a  
ringing tone sounds.  
any  
9. Press  
key to listen to the channel to make sure it is not busy, then key  
the microphone and call the other vessel you desire to communicate with.  
Page 46  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.5.5 Receiving an Individual Call  
When receiving an individual call, an acknowledgment must be sent back to the  
calling station. The GX3500S default setting is Automatic, but has a selection  
that allows you to manually send a reply before the radio will switch to the re-  
quested calling channel. This selection is useful if you want to see who is calling  
and requesting you to switch to a channel for communications, similar to caller id  
on a cellular phone.  
1. When an individual call is received, an individual call ringing alarm sounds.  
The radio automatically switches to the requested  
channel.  
2. Press any key to stop the alarm.  
3. Press the PTT on the mic and talk to the calling ship.  
11.5.6 Setting Up the Call Waiting Function  
Allows the GX3500S to be setup to reply (ABLE) or set the radio so it transmits  
a call that advises the calling vessel the person is UNABLE to reply to the call at  
this time. This function is similar to an answering machine. When set up in  
UNABLE and a individual call is received the Individual call from the other ves-  
sel is logged in the CALL WAITING directory for you to review and call back at  
a later time.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
2. Turn the CHANNEL selector knob to select “DSC  
Setup” menu.  
[
]
3. Press the ENT key, then select “INDIV ACK” with  
the CHANNEL selector knob.  
[
4. Press the ENT key.  
]
5. Turn the CHANNEL selector knob to select “Able” or  
Unable.”  
[
6. Press the ENT key to store the selected setting.  
]
7. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
GX3500S  
Page 47  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.6 GROUP CALL  
This feature allows the user to contact a group of specific vessels (example  
members of a yacht club) using DSC radios with Group call function to auto-  
matically switch to a desired channel for voice communications.  
11.6.1 Setting up a Group Call  
For this function to operate the same Group MMSI must be programmed into  
all the DSC VHF radios within the group of vessels that will be using this fea-  
ture. The group MMSI is a 9 digit (first digit permanently set to “0”) that will allow  
other radios to call your vessel along with others to automatically switch to a  
working channel for voice communications. This function is very useful for yacht  
clubs and vessels traveling together that want to collectively make announce-  
ments on a predetermined channel.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
2. Turn the CHANNEL selector knob to select “DSC  
Setup” menu.  
[
]
3. Press the ENT key, then select “Group DIR” with  
the CHANNEL selector knob.  
[
]
4. Press the ENT key, then select “Add” with the  
CHANNEL selector knob.  
[
5. Press the CALL MENU key.  
(
)]  
6. Press the one of the Keypad keys to enter the first  
letter of the name of the group you want to reference  
in the directory.  
[ (  
Example: Press the 2 MEM key repeatedly to toggle  
)]  
among the seven available characters associated  
with that key: 2  
If a mistake was made entering in the name, press-  
A
B
C
a
b
c.  
[
ing the CLR key to delete the wrong character.  
]
[
]
7. Press the ENT key to enter the desired letter and  
move the cursor one space to the right.  
8. Repeat step 6 and 7 until the name is complete. The name can consist of  
up to eleven characters, if you do not use all eleven  
[
]
characters press the ENT key to move to the next  
space. This method can also be used to enter a blank  
space in the name. To clear the previous letter, press  
[
the CLR key.  
]
[
9. After the eleventh letter or space has been entered, press the ENT key to  
]
advance to the GROUP MMSI (Maritime Mobile Service Identity Number)  
Page 48  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
number entry.  
10. Enter the MMSI number by the keypad. If a mistake  
[
was made entering in the number, press the CLR  
]
key to delete the wrong character.  
11. To enter the desired number and move one space to  
[
the right press the ENT key. Repeat procedure until all nine spaces of  
]
MMSI number are entered.  
12. If a mistake was made entering in the name or the MMSI number repeat  
[
]
pressing the ENT key until the wrong character is selected, then move the  
CHANNEL selector knob to correct the entry.  
13. To store the data entered, press and hold the ENT key.  
[
]
14. To enter another individual address, repeat steps 4 through 13.  
15. To exit this menu and return to radio operation mode press the 16/9 key.  
[
]
11.6.2 Transmitting a Group Call  
Pre-Programmable Calling  
[
(
)]  
1. Press the CALL MENU key. The “DSC Operation”  
menu will appear.  
2. Turn the CHANNEL selector knob to select “Group.”  
(To cancel, select “Exit” with the CHANNEL selector  
[
knob or press 16/9 key.)  
]
[
3. Press the ENT key. The transceiver will beep, and  
]
the “Group Directory” will appear.  
4. Turn the CHANNEL selector knob to select the  
Group” you want to contact.  
[
]
5. Press the ENT key, then turn the CHANNEL selec-  
tor knob to select the operating channel you want to  
[
communicate on and press the ENT key.  
]
[
6. Press the ENT key again to transmit the Group Call  
]
signal.  
7. After the GROUP CALL is transmitted, all the radios  
in the group will switch to the designated channel.  
8. Listen to the channel to make sure it is not busy, then  
key the microphone and call the other vessels you  
desire to communicate with.  
GX3500S  
Page 49  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Manual Calling  
You may enter an MMSI number manually to contact without the Setting up the  
Group call number.  
[
(
)]  
1. Press the CALL MENU key. The “DSC Operation”  
menu will appear.  
2. Turn the CHANNEL selector knob to select “Group.”  
(To cancel, select “Exit” with the CHANNEL selector  
[
]
knob or press 16/9 key.)  
[
3. Press the ENT key. The transceiver will beep, and  
]
the “Group Directory” will appear.  
4. Turn the CHANNEL selector knob to select “Manual,”  
[
then press the ENT key.  
]
5. Enter the MMSI number (eight digits) which you want  
[
to contact by the keypad, then press the ENT key.  
]
6. Turn the CHANNEL selector knob to select “Manual,”  
[
then press the ENT key.  
]
7. Turn the CHANNEL selector knob to select the oper-  
ating channel which you want to communicate on,  
[
]
then press the ENT key.  
[
]
8. Press the ENT key again to transmit the Group Call  
signal.  
9. After the GROUP CALL is transmitted, all the radios  
in the group will switch to the designated channel.  
10. Listen to the channel to make sure it is not busy, then  
key the microphone and call the other vessels you  
desire to communicate with.  
Page 50  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.6.3 Receiving a Group Call  
1. When a group call is received, the GX3500S will pro-  
duce a ringing alarm sound.  
2. The radio automatically switches to the requested  
channel.  
3. Press any key to stop the alarm.  
4. Monitor the channel for the person calling the Group  
for a message.  
5. If you want to respond, monitor the channel to make sure it is clear, then  
press the PTT on the mic and talk to the calling ship(s).  
NOTE  
After a Group call is received, the time the call was made and the ships  
MMSI or vessels name will appear on the LCD.  
GX3500S  
Page 51  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.7 POSITION REQUEST  
Advancements in DSC have made it possible to poll the location of another  
vessel and show the position of that vessel on the display of the GX3500S.  
Standard Horizon has taken this feature one step further, if any Standard Hori-  
zon GPS is connected to the GX3500S, the polled position of the vessel is  
shown on the display of the GPS chart plotter making it easy to navigate to the  
location of the polled vessel. This is a great feature for anyone wanting to know  
the position of another vessel. For example your buddy that is catching fish, or  
finding the location of a person you are cruising with.  
NOTE  
The other vessel must have an operating GPS receiver connected to its  
DSC transceiver and must not have its transceiver set to deny position  
requests. (Refer the section 11.5.1 to enter information into the indi-  
vidual directory).  
11.7.1 Setting up Position Reply  
The GX3500S can be set up to automatically or manually send your position to  
another vessel. This selection is important if you are concerned about some-  
one polling the position of your vessel that you may not want to. In the manual  
mode you will see the MMSI or persons name shown on the display allowing  
you to choose to send your position to the requesting vessel.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appear.  
2. Turn the CHANNEL selector knob to select “DSC  
Setup” menu.  
[
]
3. Press the ENT key, then select “POS Reply” with  
the CHANNEL selector knob.  
[
4. Press the ENT key.  
]
5. Turn the CHANNEL selector knob to select “Auto”  
or “Manual.” In “Auto” mode, after a DSC POS Re-  
quest is received, the radio will automatically trans-  
mit your vessels position. In “Manual” mode, the dis-  
play of the GX3500S will show who is requesting the  
position.  
[
6. Press the ENT key to store the selected setting.  
]
[
7. To exit this menu and return to radio operation mode press the 16/9 key.  
]
Page 52  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
The GX3500S has the capability to turn off the Position Request ringer.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appear.  
2. Turn the CHANNEL selector knob to select “DSC  
Setup” menu.  
[
3. Press the ENT key, then select “DSC Beep” with the  
]
CHANNEL selector knob.  
[
]
4. Press the ENT key.  
5. Turn the CHANNEL selector knob to select “POS  
Request.”  
6. Turn the CHANNEL selector knob to select “Off.”  
[
7. Press the ENT key to store the selected setting.  
]
8. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
If you wish to return to enabling the ringer tone, just re-  
peat the above procedure, turning the CHANNEL selec-  
tor knob to select “On” in step “6” above.  
11.7.2 Transmitting a Position Request to Another Vessel  
Pre-Programmable Request  
[
(
)]  
1. Press the CALL MENU key. The “DSC Operation”  
menu will appear in the display.  
2. Turn the CHANNEL selector knob to select “POS Re-  
quest.”  
[
]
3. Press ENT key to show the Position request direc-  
tory. This directory uses the INDIVIDUAL Directory  
information.  
4. Turn the CHANNEL selector knob to select a name,  
[
]
then press the ENT key.  
[
]
5. Press the ENT key to transmit the position request  
DSC call.  
6. When the GX3500S receives the position from the  
polled vessel it is shown on the radio display and  
also transferred to the GPS Chart plotter.  
7. If the GX3500S does not receive a reply, the display  
will be as shown in the illustration on the right. To  
[
send again, press the ENT key.  
]
GX3500S  
Page 53  
Download from Www.Somanuals.com. All Manuals Search And Download.  
NOTE  
If the GX3500S does not receive position data from the polled vessel,  
the LCD will show “NO POSITION DATA.”  
Manual Request  
You may enter an MMSI number manually to contact without the Setting up the  
Individual / Position Call Directory.  
[
(
)]  
1. Press the CALL MENU key. The “DSC Operation”  
menu will appear in the display.  
2. Turn the CHANNEL selector knob to select “POS Re-  
quest.”  
[
]
3. Press ENT key to show the Position request direc-  
tory. This directory uses the INDIVIDUAL Directory  
information.  
4. Turn the CHANNEL selector knob to select the  
]
[
Manual,” then press the ENT key.  
5. Enter the MMSI number (eight digits) which you want  
[
to contact by the keypad, then press the ENT key.  
]
[
6. Press the ENT key to transmit the position request  
]
DSC call.  
7. When the GX3500S receives the position from the  
polled vessel it is shown on the radio display and  
also transferred to the GPS Chart plotter.  
8. If the GX3500S does not receive a reply, the display  
will be as shown in the illustration on the right. To  
[
send again, press the ENT key.  
]
Page 54  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.7.3 Receiving a Position Request  
When a position request call is received from another vessel, a ringing alarm  
will sound and POS REQUEST will be show in the LCD. Operation and trans-  
ceiver function differs depending on “POS Reply” in the “DSC Setup” menu  
setting.  
Automatically reply:  
1. When a position request call is received, a calling alarm sounds 4 times.  
Then requested position coordinates are transmit-  
ted automatically to the vessel requesting your ves-  
sels position.  
2. To exit from position request display, press any key.  
Manually reply:  
1. When a position request call is received from an-  
other vessel, the LCD will be as shown in the illustra-  
tion at the right.  
2. A ringing alarm sounds 4 times. Then select type of  
reply function “Send” or “No Reply” by using the  
CHANNEL selector knob.  
3. The GX3500S display will show “Send” or “No Re-  
ply” allowing you to send your vessels location by  
using the CHANNEL selector knob.  
[
]
4. When Send” is selected, press the ENT key. And your position will be  
transmitted to the requesting vessel.  
[
5. To exit from position request display, press the 16/9 key.  
]
GX3500S  
Page 55  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.8 POSITION SEND  
The feature is similar to Position Request, however instead of requesting a  
position of another vessel this function allows you to send your position to an-  
other vessel. Your vessel must have an operating GPS receiver connected for  
the GX3500S to send the position.  
11.8.1 Setting up a Position Send Ringer  
The GX3500S has the capability to turn off the Position Send ringer.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
2. Turn the CHANNEL selector knob to select “DSC  
Setup” menu.  
[
3. Press the ENT key, then select “DSC Beep” with the  
]
CHANNEL selector knob.  
[
]
4. Press the ENT key.  
5. Turn the CHANNEL selector knob to select “POS  
Send.”  
6. Turn the CHANNEL selector knob to select “Off.”  
[
7. Press the ENT key to store the selected setting.  
]
8. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
If you wish to return to enabling the ringer tone, just re-  
peat the above procedure, turning the CHANNEL selec-  
tor knob to select “On” in step “6” above.  
Page 56  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.8.2 Transmitting a DSC Position Send Call  
Pre-Programmable Calling  
[
(
)]  
1. Press the CALL MENU key. The “DSC Operation”  
menu will appear in the display.  
2. Turn the CHANNEL selector knob to select the “POS  
Send.”  
[
3. Press the ENT key to select the Individual directory.  
]
4. Turn the CHANNEL selector knob to select a name  
[
in the directory, then press the ENT key.  
]
[
5. Press the ENT key to send your position to the se-  
]
lected vessel.  
Manual Calling  
You may enter an MMSI number manually to contact without the Setting up the  
Individual / Position Call Directory.  
[
(
)]  
1. Press the CALL MENU key. The “DSC Operation”  
menu will appear in the display.  
2. Turn the CHANNEL selector knob to select the “POS  
Send.”  
[
]
3. Press ENT key to show the Position Send directory.  
This directory uses the INDIVIDUAL Directory infor-  
mation.  
4. Turn the CHANNEL selector knob to select “Manual,”  
[
then press the ENT key.  
]
5. Enter the MMSI number (eight digits) which you want  
[
to contact by the keypad, then press the ENT key.  
]
[
6. Press the ENT key to send your position to the se-  
]
lected vessel.  
GX3500S  
Page 57  
Download from Www.Somanuals.com. All Manuals Search And Download.  
11.8.3 Receiving a DSC Position Send Call  
When another vessel transmits their vessels location to the GX3500S the fol-  
lowing will happen:  
1. A ringing sound will be produced when the call is received.  
[
2. Press the 16/9 key to stop ringing  
]
3. The position from the vessel sending it's position will be shown on the dis-  
play of the radio and also transferred to any Standard Horizon GPS Chart  
plotter if connected.  
Page 58  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
(
11.9 MANUAL INPUTTING OF THE GPS LOCATION LAT/LON  
You may send the Latitude/Longitude of your vessel manually even if the  
)
GX3500S is not connected the GPS receiver unit.  
After the position is entered, transmitting a DSC Distress, Position Request, or  
Position Send will contain the manually entered position.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
2. Turn the CHANNEL selector knob to select “DSC  
Setup” menu.  
[
]
3. Press the ENT key, then select “POS Input” with  
the CHANNEL selector knob.  
[
]
4. Press the ENT key. The transceiver will beep, and  
the display will be as shown in the illustration on the  
right.  
5. Enter the your local time from the keypad by the 24-  
[
hour system on the UTC time, then press the ENT  
]
key.  
6. Enter the Latitude/Longitude of your vessel location  
[
by the keypad, then press the ENT key. To select  
]
[ ( )]  
North (N) press 6 NAV key, South (S) press the  
[ ( )] [ ( )]  
7 SCRM key, East (E) press the 3 SCAN key or  
[ ( )]  
West (W) press the 9 FOG key.  
7. To store the data entered, press the 16/9 key to exit  
this menu and return to radio operation mode.  
[
]
GX3500S  
Page 59  
Download from Www.Somanuals.com. All Manuals Search And Download.  
12 RADIO SETUP  
NOTE  
The optional RAM+ MIC CMP25 can also change the RADIO SETUP  
menu. Refer to page 74 for details.  
12.1 LCD CONTRAST  
This selection sets up the display for best viewabilty for the varying mounting  
locations (overhead or below).  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “Contrast” in the  
Radio Setup” menu with the CHANNEL selector  
knob.  
[
]
3. Press the ENT key.  
4. Turn the CHANNEL selector knob to select the de-  
sired level. The contrast level can be set from “0” to  
31.”  
[
5. Press the ENT key to store the selected level.  
]
6. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
Page 60  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
12.2 TIME OFFSET  
This selection sets the time offset between local time and UTC (time GPS  
sends to radio). Time is displayed when GPS position (LAT/LON) is displayed  
[ ]  
by pressing the F key followed by the 6 NAV key.  
[ (  
)]  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “Time Set” in the  
Radio Setup” menu with the CHANNEL selector  
knob.  
[
3. Press the ENT key.  
]
4. Turn the CHANNEL selector knob to select time off-  
set from UTC. See illustration below to find your off-  
set time from UTC. If “0:00” is assigned, the time is  
the same as UTC (Universal Time Coordinated or  
GMT Greenwich Mean Time).  
[
5. Press the ENT key to store the time offset.  
]
[
6. To exit this menu and return to radio operation mode press the 16/9 key.  
]
OFFSET TIME TABLE  
GX3500S  
Page 61  
Download from Www.Somanuals.com. All Manuals Search And Download.  
12.3 TIME LOCATION  
This selection selects the time display between local time and UTC (time GPS  
sends to radio). Time is displayed when GPS position (LAT/LON) is displayed  
[ ]  
by pressing the F key followed by the 6 NAV key.  
[ (  
)]  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “Time Disp.” in the  
Radio Setup” menu with the CHANNEL selector  
knob.  
[
]
3. Press the ENT key.  
4. Turn the CHANNEL selector knob to select “UTC” or  
Local.”  
5. Press the ENT key to store the selected setting.  
6. To exit this menu and return to radio operation mode  
[
]
[
press the 16/9 key.  
]
n the local time mode, the display shows the time by the 12-hour system. Mean-  
while, the display shows the time by the 24-hour system in the UTC mode.  
(
)
(
)
LOCAL” mode  
UTC” mode  
(
)
12.4 TRUE MAGNETIC CHANGE NAV display  
This selection allows customizing the GPS COG (Course Over Ground) dis-  
played on the LCD to be in True or Magnetic.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “Magnetic” in the  
Radio Setup” menu with the CHANNEL selector  
knob.  
[
3. Press the ENT key.  
]
4. Turn the CHANNEL selector knob to select “On” (rep-  
resenting “Magnetic”) or “Off” (representing “True”).  
[
5. Press the ENT key to store the selected setting.  
]
6. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
Page 62  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
12.5 PRIORITY CHANNEL SET  
Allows selection of the priority channel.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “Priority CH” in the  
Radio Setup” menu with the CHANNEL selector  
knob.  
[
]
3. Press the ENT key.  
4. Turn the CHANNEL selector knob to select the chan-  
nel to be a priority.  
[
5. Press the ENT key to store the selected setting.  
]
6. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
12.6 SCAN TYPE  
This selection selects the scan mode between “Memory Scan” and “Priority  
Scan.”  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “SCAN Type” in the  
Radio Setup” menu with the CHANNEL selector  
knob.  
[
3. Press the ENT key.  
]
4. Turn the CHANNEL selector knob to select “Prior-  
ity” or “Memory.”  
[
5. Press the ENT key to store the selected setting.  
]
6. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
GX3500S  
Page 63  
Download from Www.Somanuals.com. All Manuals Search And Download.  
12.7 SCAN RESUME TIME  
This selection is used to select the time the GX3500S waits after a transmis-  
sion ends before starting scanning.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “SCAN Resume” in  
the “Radio Setup” menu with the CHANNEL selec-  
tor knob.  
[
]
3. Press the ENT key.  
4. Turn the CHANNEL selector knob to select the de-  
sired resume time. The resume time can be set to  
1sec,” “2sec,” “3sec,” or “Off.” In the “Off” selec-  
tion, the scanner will resume after the other station  
stops transmitting (carrier drops).  
[
]
5. Press the ENT key to store the selected setting.  
6. To exit this menu and return to radio operation mode press the 16/9 key.  
[
]
(
12.8 KEY BEEP ON/OFF  
This selection allows the beep tone when a key is pressed to be turned off.  
)
[
(
)]  
1. Press and hold down the CALL MENU key until  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “Key Beep” in the  
Radio Setup” menu with the CHANNEL selector  
knob.  
[
3. Press the ENT key.  
]
4. Turn the CHANNEL selector knob to select “On” or  
Off.”  
5. Press the ENT key to set the key beep condition.  
6. To exit this menu and return to radio operation mode  
[
]
[
press the 16/9 key.  
]
NOTE  
Emergency alarm and beeps for DSC operation cannot be turned OFF.  
Page 64  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
12.9 WX ALERT  
This selection allows the radios NOAA Weather alert to be turned off. Default  
setting is ON.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “WX Alert” in the  
Radio Setup” menu with the CHANNEL selector  
knob.  
[
]
3. Press the ENT key.  
4. Turn the CHANNEL selector knob to select the de-  
sired WX alert mode. The WX alert mode can be set  
to “On WX,” “On SCAN,” “On SCAN/WX,” or “Off.”  
[
5. Press the ENT key to store the selected setting.  
]
6. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
GX3500S  
Page 65  
Download from Www.Somanuals.com. All Manuals Search And Download.  
12.10 CHANNEL NAME CHANGE  
This selection allows you to customize the name of a channel from the default  
name.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “CH Name” in the  
Radio Setup” menu with the CHANNEL selector  
knob.  
[
3. Press the ENT key.  
]
4. Turn the CHANNEL selector knob to select the chan-  
[
]
nel to be named, then press the ENT key.  
5. Press the one of the Keypad keys to enter the first  
letter of the channel name.  
[ (  
Example: Press the 2 MEM key repeatedly to toggle  
)]  
among the seven available charactors associated  
with that key: A  
B
C
a
b
c
2.  
[
]
6. Press the ENT key to enter the desired letter and  
move the cursor one space to the right.  
7. Repeat procedure until the name is complete. The  
name can consist of up to twelve characters. If you  
[
do not use all twelve character, press the ENT key  
]
to move to the next space. To clear the previous let-  
[
(
)]  
ter, press the H/L NAV key.  
[
]
8. Press and hold the ENT key to enter the name and exit from the “CH  
Name” menu. The LCD will return to the “Radio Setup” menu.  
9. If you want to enter the name of another channel, repeat steps 3 through 8.  
[
10. To exit this menu and return to radio operation mode press the 16/9 key.  
]
Page 66  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
12.11 NAMING THE RADIO OR RAM+ STATIONS  
This selection allows you to provide the name to the radio and optional RAM+  
Mic’s when connected.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appears.  
[
]
2. Press the ENT key, then select “Unit Name” in the  
Radio Setup” menu with the CHANNEL selector  
knob.  
[
3. Press the ENT key.  
]
4. Turn the CHANNEL selector knob to select the Unit  
(Radio, RAM 1, or RAM2) to be named, then press  
[
the ENT key.  
]
5. Press the one of the Keypad keys to enter the first  
letter of the unit name.  
[ (  
Example: Press the 2 MEM key repeatedly to toggle  
)]  
among the seven available charactors associated  
with that key: 2  
A
B
C
a
b
c.  
[
]
6. Press the ENT key to enter the desired letter and  
move the cursor one space to the right.  
7. Repeat procedure until the name is complete. The  
name can consist of up to twelve characters. If you  
[
do not use all twelve character, press the ENT key  
]
to move to the next space.  
[
]
8. Press and hold the ENT key to enter the name and  
exit from the “Unit Name” menu. The LCD will return to the “Radio Setup”  
menu.  
9. If you want to enter the name of another unit, repeat steps 3 through 8.  
[
10. To exit this menu and return to radio operation mode press the 16/9 key.  
]
GX3500S  
Page 67  
Download from Www.Somanuals.com. All Manuals Search And Download.  
12.12 FOG ALERT TONE FREQUENCY  
This selection allows you to select the Alert Tone Frequency for the PA/FOG  
Operation. Available selections are “200 Hz” through “850 Hz” in 50 Hz steps.  
The default Alert Tone Frequency is 400 Hz.  
[
1. Press and hold down the CALL MENU key until  
(
)]  
Radio Setup” menu appear.  
[
]
2. Press the ENT key, then select “Fog Freq.” in the  
Radio Setup” menu with the CHANNEL selector  
knob.  
[
]
3. Press the ENT key.  
4. Turn the CHANNEL selector knob to select desired  
tone frequency.  
[
5. Press the ENT key to store the selected setting.  
]
6. To exit this menu and return to radio operation mode  
[
press the 16/9 key.  
]
Page 68  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
13 ENHANCED RAM+ MIC OPERATION  
When the RAM+ microphone is connected to the GX3500S, most VHF, DSC,  
setup menus and PA modes can be remotely operated. The RAM+ Mic sup-  
plied with 23 feet (7 m) of routing cable and can be extended up to 70 feet (21  
m) using three 23 feet extension cables model CT-100. The intercom operation  
can be used between the RAM+ Mic and the transceiver.  
13.1 RAM+ MIC CONTROLS  
MEM  
IC  
WX  
SCAN  
DW  
CALL  
SET  
NAV  
16  
9
(
)
SQUELCH CONTROL SQL  
Activates the squelch adjusting mode.  
Press this key to activate the squelch adjusting mode. Press the  
[
]
[
]
microphone’s or key to adjust the squelch.  
When this key is pressed and held down for 1 second or more, the squelch  
is turned off.  
(
VOLUME KEY VOL  
)
Activates the volume adjusting mode.  
Press this key to activate the volume adjusting mode. Press the  
[
microphone’s or to adjust the volume.  
]
[
]
GX3500S  
Page 69  
Download from Www.Somanuals.com. All Manuals Search And Download.  
(
POWER SWITCH PWR  
)
Press and hold down this key to turn to the transceiver and RAM+ Mic on  
and off.  
(
PTT Push-To-Talk SWITCH  
)
Activates transmission.  
[
]
H/L KEY  
[
Toggles between high and low power. When the H/L key is pressed while  
]
the transceiver is on channel 13 or 67, the power will temporarily switch  
[
]
from LO to HI power until the PTT is released. The H/L key does not  
function on transmit inhibited and low power only channels.  
[
]( ) [ ](  
UP / DOWN KEY  
)
These keys are used to select channels, adjust the volume and squelch  
level, and to choose the item selection of different functions (such as the  
DSC operation). In many ways, these keys emulate the function of the  
transceiver’s CHANNEL selector knob.  
[
]
16/9 KEY  
Immediately recalls channel 16 from any channel location. Holding down  
[
this key recalls channel 9. Pressing the 16/9 key reverts to the previous  
]
selected working channel.  
Secondary use  
Please see secondary use for the WX and MEM key.  
[
]
[
]
KEY PAD  
[
]
SCAN Key  
1. Starts and stops scanning of programmed channels.  
[
(
)]  
[
(
)]  
2. If held while the UP or DOWN key on the microphone are  
pressed, the radio will show the channels programmed in scan  
memory. This function will not work if the unit is scanning.  
NOTE: The priority channel by default is Channel 16, however the  
priority channel can be changed. To select a different priority channel  
refer to section “12.6 SCAN TYPE.”  
[
]
CALL/SET Key  
The [CALL/SET] key functions as the enter key.  
Secondary use  
[
Press the CALL/SET key to access the DSC OPERATION menu.  
]
[
Press and hold the CALL/SET key to access the SETUP menu.  
]
Page 70  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
[
[
]
DW Key  
Watches for a transmission on CH16 and another selected channel until  
either signal is received. (Dual watch)  
Secondary use  
[
Press and hold DW key, intercom operation will operate between radio  
]
and RAM+ Mic.  
]
NAV Key  
Press this key, when connected to the GPS receiver, the LCD displays  
Position Data and Time from the GPS.  
Secondary use  
[
Press and hold NAV key to access PA/FOG function menu.  
]
[
]
WX Key  
Immediately recalls the previously selected US NOAA weather channel from  
any channel location.  
Secondary use  
Holding down the 16/9 key while pressing the WX key switch the Chan-  
nel Group.  
[
]
[
]
NOTE: If position is displayed, this icon will be hidden.  
[
]
DISTRESS KEY  
Used to send a DSC Distress Call. To send the distress call:  
1. Lift the red rubber cover.  
2. Press and hold the Red button. The RAM+ display will count down (3-2-  
1) and then transmit the Distress call.  
3. When the distress signal is sent, Ch70 and “  
” icon will appear on  
the LCD. After the message has been sent, the radio and RAM+ will  
sound a Distress Alarm.  
4. The transceiver “shadow-watches” for a transmission on  
CH16 or CH70 until an acknowledgment signal is re-  
ceived. “DISTRESS” and “WAITING” will appear on the  
LCD.  
5. If an acknowledgement is received, select channel 16  
and advise your distress situation.  
6. If no acknowledgment is received, the distress call is  
repeated in 4 minute intervals until an acknowledgment  
is received.  
7. When a DSC Distress acknowledgment is received, a  
distress alarm sounds and channel 16 is automatically  
selected. The LCD shows the MMSI of the ship responding to your dis-  
tress.  
GX3500S  
Page 71  
Download from Www.Somanuals.com. All Manuals Search And Download.  
RECEIVED ACK: acknowledgment signal is received.  
RECEIVED RLY: relay signal is received from another vessel or coast  
station.  
8. To cancel the DSC distress alarm signal from the speaker, press any  
key.  
13.2 INTERCOM OPERATION  
13.2.1 Communication  
[
1. Press and hold the DW key while in the “RADIO” mode, the mode is  
]
changed to “INTERCOM” mode.  
2. If your GX3500S is equipped with two RAM+ Mic, select the companion you  
[
wish to communicate (RADIO, RAM, or ALL) with the / key, then  
] [  
]
[
press the CALL/SET key.  
]
3. When the “INTERCOM” operation is activated, “IC” is dis-  
played on the RAM+ Mic and “INTERCOM” is displayed on  
the GX3500S.  
4. Press the PTT switch, “TALK” is displayed.  
NOTE: Awarning beep is emitted when the RAM+ Mic PTT switch is pressed  
while the transceiver microphone’s PTT  
switch is pressed.  
5. Speak slowly and clearly into the mi-  
crophone, hold the microphone about  
1/2 inch away from your mouth.  
(
)
RAM+ Mic’s PTT switch is pressed  
6. When finished, release the PTT switch.  
[
7. Press the DW key again the mode will  
]
revert to “RADIO” mode.  
(
)
GX3500S’s PTT switch is pressed  
13.2.2 Calling  
[
Hold down the DW key for 1 second or more, when the “INTERCOM” opera-  
]
tion is activated. A calling beep is emitted twice from the transceiver speaker.  
Page 72  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
13.3 PA/FOG OPERATION  
The RAM+ is capable of controlling the 30W Public address, 4 fog horns, bells  
and whistles.  
13.3.1 Operating the PA / Hailer  
[
1. Press and hold the NAV key then select PA with the or  
]
[ ]  
[
]
key.  
[
2. Press the CALL/SET key.  
]
3. Press the PTT switch and speak into the microphone.  
4. To turn up the PA Volume, press the PTT switch and press  
[
the or keys to adjust the Audio output level. The  
]
[
]
level can be set from 0 to 30W.  
5. To adjust the listen back volume, (while in listenback mode)  
[
press the VOL Key, then press the or key to the  
]
[
]
[
]
desired listen back volume.  
[
] [  
]
To exit from the PA Hailer mode, press the CALL/SET , 16/9 ,  
[
or WX key.  
]
13.3.2 Operating the FOG Horn  
The GX3500S is capable of sending Underway, Stop, Sail, Tow, Horn, Siren,  
Aground and Anchor signals.  
[
]
1. Press and hold the NAV key then select FOG with the ꢀ  
[ ]  
[
or key.  
]
[
2. Press the CALL/SET key.  
]
3. Select the one of the eight functions described above with  
[
]
[
]
[
]
the or key and press the CALL/SET key.  
4. On the “Horn” and “Siren” modes, press the PTT switch to  
activate the tone through the HAIL/PA speaker.  
[
]
Press the or keys to adjust the Audio output level.  
[
]
The level can be set from 0 to 30W.  
5. To adjust the listen back volume, (while in listenback mode)  
[
press the VOL Key, then press the or key to the  
]
[
]
[
]
desired listen back volume.  
[
To exit from the FOG HORN mode, press the 16/9 , WX , or  
] [  
]
[
]
CALL/SET key.  
GX3500S  
Page 73  
Download from Www.Somanuals.com. All Manuals Search And Download.  
13.4 DSC/RADIO SETUP MODE  
The RAM+ can access the DSC / RADIO setup menu (refer to section “10  
DIGITAL SELECTIVE CALLING” and section “12 RADIO SETUP” for details).  
The LAMP, CONTRAST, and KEY BEEP menu item accessed from the RAM+  
only controls the RAM+’s display and speaker.  
DSC/RADIO Setup mode from the RAM+:  
[
]
1. Press and hold down the CALL/SET key until “RADIO SETUP” menu ap-  
pears.  
[
] [  
]
2. Press the / key to select “RADIO SETUP” or “DSC SETUP” menu.  
[
3. Press the CALL/SET key, then select the menu item you wish to work on  
]
[
by pressing the / key.  
] [  
]
[
]
4. Press the CALL/SET key.  
[
5. Press the / key to change the value or condition for the menu item,  
] [  
]
then press the [CALL/SET] key to save the new setting.  
[
[
] [  
]
]
6. Press the / key to select “EXIT,” then press the CALL/SET key to  
return to the normal operation.  
RADIO SETUP-menu  
DSC SETUP-menu  
Page 74  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
14 MAINTENANCE  
The inherent quality of the solid-state components used in this transceiver will  
provide many years of continuous use. Taking the following precautions will pre-  
vent damage to the transceiver.  
Keep the microphone connected or the jack covered at all times to prevent  
corrosion of electrical contacts;  
Never key the microphone unless an antenna or suitable dummy load is con-  
nected to the transceiver.  
Ensure that the supply voltage to the transceiver does not exceed 16 VDC or  
fall below 11 VDC.  
Use only STANDARD HORIZON-approved accessories and replacement parts.  
In the unlikely event of serious problems, please contact your Dealer or our repair  
facility. Address and phone numbers for this facility, as well as warranty informa-  
tion, are contained in section “16 WARRANTY.”  
14.1 REPLACEMENT PARTS  
Occasionally an owner needs a replacement mounting bracket or knob.  
These can be ordered from our Parts Department by writing or calling:  
Marine Division of Vertex Standard  
US Headquarters  
10900 Walker Street, Cypress, CA 90630, U.S.A.  
Telephone (714) 827-7600  
Commonly requested parts, and their part numbers are listed below.  
Power Cord: T9023306  
VOL/SQL Knob: RA0542600  
Rotary Channel Knob: RA0569500  
Mounting Bracket: RA0544200A  
Mounting Bracket Knob: RA045910A  
Microphone Hanger: RA0458800  
Microphone Assembly: M3090118  
RAM+ Mic Routing Cable Assembly: S8101512  
14.2 FACTORY SERVICE  
In the unlikely event that the radio fails to perform or needs servicing, please con-  
tact the following:  
Standard Horizon  
Attention Marine Repair Department  
10900 Walker Street, Cypress, CA 90630  
Telephone (800) 366-4566  
An “RA” Return Authorization number is not necessary to send a product in for  
service. Include a brief note describing the problem along with your name, return  
address, phone number, and proof of purchase.  
GX3500S  
Page 75  
Download from Www.Somanuals.com. All Manuals Search And Download.  
14.3 TROUBLESHOOTING CHART  
SYMPTOM  
PROBABLE CAUSE REMEDY  
Transceiver fails to No DC voltage to the a. Check the 12VDC battery connections and  
power up.  
transceiver, or blown  
fuse.  
the fuse.  
b. The PWR key needs to be pressed and held  
to turn the radio on.  
Transceiver blows fuse Reversed power Check the power cable for DC voltage, or re-  
when connected to wires.  
power supply.  
place the fuse (6A 250V).  
Make sure the red wire is connected to the posi-  
tive (+) battery post, and the black wire is con-  
nected to the negative (-) battery post. If the  
fuse still blows, contact your Dealer.  
Popping or whining Engine noise.  
noise from the speaker  
while engine runs.  
Reroute the DC power cables away from the  
engine. Add noise suppressor on power cable.  
Change to resistive spark plug wires and/or add  
an alternator whine filter.  
Sound is not emitted Accessory cable.  
from the internal or ex-  
ternal speaker.  
Check the connections of the accessory cable  
(Possible short circuit on the External speaker  
cable WHITE/SHIELD).  
Receiving station re- Antenna.  
port low transmit  
power, even with trans-  
Have the antenna checked or test the trans-  
ceiver with another antenna. If the problem per-  
sists, contact your Dealer for servicing.  
ceiver set to HI power.  
“HI BATTERY” or “LO The power supply Confirm that the connected power supply volt-  
BATTERY” message is voltage is too high or age is not 17 volts or lower than 10 volts. Con-  
appeared when the too low.  
power is turned on.  
firm that the generator has not malfunctioned.  
“PA ERROR” or “FOG Accessory cable.  
ERROR” message is  
shown when the PA/  
FOG mode is acti-  
vated.  
Check the accessory cable connection (Pos-  
sible short circuit on the PA speaker cable RED/  
SHIELD).  
Your position is not dis- Accessory cable.  
played.  
Check the accessory cable connection.  
Some GPS use the battery ground line for  
NMEA connection.  
Setting of the GPS Check the output signal format of the GPS navi-  
navigation receiver. gation receiver. This radio requires NMEA0183  
format with GLL, RMB, GGA, or GNS sentence  
as an output signal. If the GPS has a baud rate  
setting make sure to select 4800 and parity to  
NONE.  
Page 76  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
15. CHANNEL ASSIGNMENTS  
Tables on the following columns list the VHF Marine Channel assignments for  
U.S.A. and International use. Below are listed some data about the charts.  
1. VTS. Where indicated, these channels are part of the U.S. Coast Guard’s  
Vessel Traffic System.  
2. Alpha channel numbers, that is, channel numbers followed by the letter A  
(such as Channel 07A) are simplex channels on the U.S.A. or Canadian  
channel assignments whose counterparts in the International assignments  
are duplex channels. International channels do not use “alpha” numbers. If  
you call the Coast Guard on Channel 16, they will sometimes ask you to  
go to channel 22 Alpha.” This is a channel assigned to U.S.A, and Cana-  
dian Coast Guards for handling distress and other calls. If your radio is set  
for International operation you will go to Channel 22 instead of 22A, and  
will not be able to communicate with the Coast Guard. To use Channel 22A,  
your radio must be set for USA or Canada operation, usually by a U/I/C  
(USA/International/Canada) control or combination of controls. Channel 22  
(without an “A”) is an International duplex channel for port operations.  
Some radios indicate an “A” adjacent to the alpha channels on the display;  
on others “alpha” is not indicated but the proper channel is selected based  
on the U/I/C setting.  
3. Bridge-to-Bridge channels (for example, Channel 13) are for use by bridge  
operators on intercoastal waterways and rivers. It is also used by marine  
vessels in the vicinity of these bridges for navigation and for communicat-  
ing with the bridge operators. Note that a limit of 1 Watt is specified for  
these channels. See page 27 for additional information.  
4. The S/D column on the chart indicates either S (simplex) or D (duplex).  
Simplex means transmitting and receiving on the same frequency. Only  
one party at a time can talk, unlike a telephone. Be sure to say “over” and  
release your microphone push-to-talk switch at the end of each transmis-  
sion. Duplex operation involves the use of one frequency for transmitting  
and a separate frequency for receiving. On channels specified as duplex  
on the charts, correct mode of operation is established automatically by  
your radio when you select a channel; you cannot change the mode. And  
you still must release the push-to-talk switch after each transmission in  
order to listen to the radio.  
5. Channels normally used by recreational boaters are those that include the  
term “non-commercial” in the Channel Use column of the chart. Some of  
these are shared with other users and some are used only in certain geo-  
graphic regions.  
GX3500S  
Page 77  
Download from Www.Somanuals.com. All Manuals Search And Download.  
6. Marine vessels equipped with VHF radios are required to monitor  
Channel 16.  
VHF MARINE CHANNEL CHART  
CH  
01  
U
C
X
I
X
S/D  
D
TX  
156.050 160.650 Public Correspondence (Marine Operator)  
RX  
CHANNEL USE  
01A  
X
S
156.050  
Port Operation and Commercial.  
VTS in selected areas  
02  
03  
03A  
04  
X
X
X
X
D
D
S
D
156.100 160.700 Public Correspondence (Marine Operator)  
156.150 160.750 Public Correspondence (Marine Operator)  
X
156.150  
US Government only, Coast Guard  
X
156.200 160.800 Public Correspondence (Marine Operator),  
Port operation, ship movement  
04A  
05  
X
S
D
156.200  
Pacific coast: Coast Guard, East Coast:  
Commercial fishing  
X
156.250 160.850 Public Correspondence (Marine Operator),  
Port operation, ship movement  
05A  
06  
07  
X
X
X
X
S
S
D
156.250  
156.300  
Port operation. VTS in Seattle  
Inter-ship Sefety  
X
X
156.350 160.950 Public Correspondence (Marine Operator),  
Port operation, ship movement  
07A  
08  
09  
X
X
X
X
X
X
S
S
S
156.350  
156.400  
156.450  
Commercial  
Commercial (Inter-ship only)  
Boater Calling channel, Commercial &  
Non-commercial (Recreational)  
Commercial  
Commercial. VTS in selected areas.  
Port operation. VTS in selected areas.  
Inter-ship Navigation Safety (Bridge-to-bridge)  
Port operation. VTS in selected areas.  
X
X
10  
11  
12  
13  
14  
15  
15  
16  
17  
18  
18A  
19  
19A  
19A  
20  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
S
S
S
S
S
S
S
S
S
D
S
D
S
S
D
156.500  
156.550  
156.600  
156.650  
156.700  
- - -  
156.750  
156.800  
156.850  
156.750 Environmental (Receive only)  
X
X
X
X
X
X
X
Commercial, non-commercial, ship movement (1 W)  
International Distress, Safety and Calling  
State Controlled (1 W)  
X
X
156.900 161.500 Port operation, ship movement  
156.900 Commercial  
156.950 161.550 Port operation, ship movement  
X
X
X
X
X
156.950  
156.950  
US: Commercial  
Coast Guard  
X
X
X
X
157.000 161.600 Canadian Coast Guard Only,  
International: port operations and shipment  
Port operation  
157.050 161.650 Port operation, ship movement  
20A  
21  
21A  
22  
S
D
S
D
S
157.000  
X
X
X
X
157.050  
157.100 161.700 Port operation, ship movement  
U.S. Government Only, Canadian Coast Guard  
22A  
X
X
157.100  
US and Canadian Coast Guard Liaison and  
Maritime Safety Information Broadcasts announced  
on channel 16  
Page 78  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
VHF MARINE CHANNEL CHART  
TX RX CHANNEL USE  
157.150 161.750 Public Correspondence (Marine Operator)  
157.150 U.S. Government Only  
157.200 161.800 Public Correspondence (Marine Operator)  
157.250 161.850 Public Correspondence (Marine Operator)  
157.300 161.900 Public Correspondence (Marine Operator)  
157.350 161.950 Public Correspondence (Marine Operator)  
157.400 162.000 Public Correspondence (Marine Operator)  
156.025 160.625 Public Correspondence (Marine Operator)  
CH  
23  
23A  
24  
25  
26  
27  
28  
U
C
X
I
X
S/D  
D
S
D
D
D
D
D
D
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
60  
61  
D
156.075 160.675 Public Correspondence (Marine Operator),  
Port operation, ship movement  
61A  
62  
X
X
S
D
S
D
S
D
S
D
156.075  
U.S. Government Only, Canadian Coast Guard-  
Pacific Coast, Commercial Fishing-East Coast  
X
X
X
156.125 160.725 Public Correspondence (Marine Operator),  
Port operation, ship movement  
62A  
63  
X
156.125  
Public Coast: Coast Guard;  
East Coast: commercial fishing only  
156.175 160.775 Public Correspondence (Marine Operator),  
Port operation, ship movement  
63A  
64  
X
X
X
156.175  
Port Operation and Commercial.  
VTS in selected areas.  
X
156.225 160.825 Public Correspondence (Marine Operator),  
Port operation, ship movement  
64A  
65  
X
156.225  
U.S. Government Only,  
Canadian Commercial Fishing  
X
X
X
156.275 160.875 Public Correspondence (Marine Operator),  
Port operation, ship movement  
65A  
66  
X
S
D
156.275  
Port Opeations  
156.325 160.925 Public Correspondence (Marine Operator),  
Port operation, ship movement  
66A  
67  
X
X
X
X
S
S
156.325  
156.375  
Port Operations  
US: Commercial. Used for Bridge-to-bridge com  
muni-cations in lower Mississippi River. Inter-ship  
only,  
Canada: Commercial fishing, S&R  
Non-commercial (Recreational)  
US: Non-commercial (Recreational),  
Canada: Commercial fishing only,  
International: Inter-ship, Port opertions and Ship  
movement  
68  
69  
X
X
X
X
X
X
S
S
156.425  
156.475  
70  
71  
X
X
X
X
X
X
S
S
156.525  
156.575  
Digital selective calling (voice communications not  
allowed)  
US, Canada: Non-commercial (Recreational),  
International: Port opertions and Ship movement  
Non-commercial (Inter-ship only)  
72  
73  
X
X
X
X
X
X
S
S
156.625  
156.675  
US: Port Operations,  
Canada: Commercial fish ing only,  
International: Inter-ship, Port opertions and Ship  
movement  
74  
X
X
X
S
156.725  
US: Port Operations,  
Canada: Commercial fishing only,  
International: Inter-ship, Port opertions and Ship  
movement  
GX3500S  
Page 79  
Download from Www.Somanuals.com. All Manuals Search And Download.  
VHF MARINE CHANNEL CHART  
RX  
CH  
75  
76  
77  
77  
78  
U
X
X
X
C
I
S/D  
S
S
S
S
TX  
CHANNEL USE  
156.775  
Port Operations (Inter-ship only) (1W)  
Port Operations (Inter-ship only) (1W)  
Port Operations (Inter-ship only) (1W)  
Port Operations (Inter-ship only)  
156.825  
156.875  
156.875  
X
X
X
D
156.925 161.525 Public Correspondence (Marine Operator),  
Port operation, ship-movement  
78A  
79  
79A  
80  
80A  
81  
81A  
X
X
X
X
X
X
X
X
S
D
S
D
S
D
S
156.925  
156.975 161.575 Port operation and Ship movement  
156.975 Commercial  
157.025 161.625 Port operation, ship movement  
157.025 Commercial  
157.075 161.675 Port operation, ship movement  
Non-commercial (Recreational)  
X
X
X
157.075  
U.S. Government Only -  
Environmental protection operations.  
82  
X
X
D
157.125 161.725 Public Correspondence (Marine Operator),  
Port operation, ship movement  
82A  
X
X
X
S
157.125  
U.S. Government Only,  
Canadian Coast Guard Only  
83  
83A  
X
X
D
S
157.175 161.775 Canadian Coast Guard Only  
157.175  
U.S. Government Only,  
Canadian Coast Guard Only  
83  
84  
85  
86  
87  
88  
X
X
X
X
X
X
X
X
X
X
X
X
D
D
D
D
D
D
S
D
D
D
D
D
D
D
D
D
D
157.175 161.775 Public Correspondence (Marine Operator)  
157.225 161.825 Public Correspondence (Marine Operator)  
157.275 161.875 Public Correspondence (Marine Operator)  
157.325 161.925 Public Correspondence (Marine Operator)  
157.375 161.975 Public Correspondence (Marine Operator)  
157.425 162.025 Public Correspondence (ship-to-coast)  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
88A  
WX01  
WX02  
WX03  
WX04  
WX05  
WX06  
WX07  
WX08  
WX09  
WX10  
157.425  
Commercial, Inter-ship Only  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
- - -  
- - -  
- - -  
- - -  
- - -  
- - -  
- - -  
- - -  
- - -  
- - -  
162.550 Weather (receive only)  
162.400 Weather (receive only)  
162.475 Weather (receive only)  
162.425 Weather (receive only)  
162.450 Weather (receive only)  
162.500 Weather (receive only)  
162.525 Weather (receive only)  
161.650 Weather (receive only)  
161.775 Weather (receive only)  
163.275 Weather (receive only)  
The above BOLD channels are not for use of the general public in U.S. waters, unless proper authorization is  
given.  
Page 80  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Points of communica-  
tion (Intership and be-  
tween coast and ship  
unless otherwise  
iandicated)  
Points of communica-  
tion (Intership and be-  
tween coast and ship  
unless otherwise  
iandicated)  
Carrier frequency  
Carrier frequency  
(
)
(
)
MHz  
MHz  
Channel  
designator  
Channel  
designator  
Coast  
transmit  
Coast  
transmit  
Ship  
transmit  
Ship  
transmit  
Port Operations  
Noncommercial  
01A1  
63A1  
052  
65A  
66A  
123  
73  
156.050 156.050  
6817  
0916  
69  
71  
72  
78A  
79A  
80A  
6714  
156.425 156.425  
156.450 156.450  
156.475 156.475  
156.575 156.575  
156.625 ........ Intership only.  
156.925 156.925  
156.975 156.975 Great Lakes only.  
157.025 157.025 Do.  
156.375 ....... Internship only.  
156.175 156.175  
156.250 156.250  
156.275 156.275  
156.325 156.325  
156.600 156.600  
156.675 156.675  
156.700 156.700  
156.725 156.725  
156.875  
143  
74  
774  
Intership only.  
Intership only.  
Distress, Safety and Calling  
156.800 156.800 EPRIB  
Intership Safety  
20A12 157.000  
16  
06  
Navigational (Bridge-to-Bridge)5  
136  
677  
156.650 156.650  
156.375 156.375  
156.300 ........ a. Intership, or  
b. For SAR: Ship  
and aircraft for the  
Commercial  
01A1  
63A1  
07A  
677  
08  
09  
156.050 156.050  
156.175 156.175  
156.350 156.350  
U.S. Coast Guard.  
Environmental  
1513  
........ 156.750 Coast to ship only.  
Maritime Control  
156.375  
Intership only.  
156.400 ........ Do.  
156.450 156.450  
156.500 156.500  
156.550 156.550  
156.900 156.900  
156.950 156.950  
156.975 156.975  
157.025 157.025  
157.425 ........ Intership only.  
156.625 ........ Internship only.  
179,10  
156.850 156.850  
10  
113  
Liaison, U.S. Coast Guard  
18A  
19A  
79A  
80A  
88A8  
7214  
22A11 157.100 157.100 Ship, aircraft, and  
coast stations of  
the U.S. Coast  
Guard and at  
Lake Mead, Nev.,  
ship and coast  
stations of the  
National Park  
Service, U.S.  
Department of the  
Interior.  
Digital Selective Calling  
7015  
156.525 156.525  
1: 156.050 MHz and 156.175 MHz are available for port operations and commercial com-  
munications purposes when used only within the U.S. Coast Guard designated Vessel  
Traffic Services (VTS) area of New Orleans, on the lower Mississippi River from the  
various pass entrances in the Gulf of Mexico to Devil’s Swamp Light at River Mile 242.4  
above head of passes near Baton Rouge.  
2: 156.250 MHz is available for port operations communications use only within the U.S.  
Coast Guard designated VTS radio protection areas of New Orleans and Houston de-  
scribed in Sec. 80.383. 156.250 MHz is available for intership port operations communi-  
cations used only within the area of Los Angeles and Long Beach harbors, within a 25-  
nautical mile radius of Point Fermin, California.  
3: 156.550 MHz, 156.600 MHz and 156.700 MHz are available in the U.S. Coast Guard  
designated port areas only for VTS communications and in the Great Lakes available  
primarily for communications relating to the movement of ships in sectors designated by  
the St. Lawrence Seaway Development Corporation or the U.S. Coast Guard. The use of  
these frequencies outside VTS and ship movement sector protected areas is permitted  
provided they cause no interference to VTS and ship movement communications in thier  
respective designated sectors.  
GX3500S  
Page 81  
Download from Www.Somanuals.com. All Manuals Search And Download.  
4: Use of 156.875 MHz is limited to communications with pilots regarding the movement  
and docking of ships. Normal output power must not exceed 1 watt.  
5: 156.375 MHz and 156.650 MHz are available primarily for intership navigational commu-  
nications. These frequencies are available between coast and ship on a secondary basis  
when used on or in the vicinity of locks or drawbridges. Normal output power must not  
exceed 1 watt. Maximum output power must not exceed 10 watts for coast stations or 25  
watts for ship stations.  
6: On the Great Lakes, in addition to bridge-to-bridge communications, 156.650 MHz is  
available for vessel control purposes in established vessel traffic systems. 156.650 MHz  
is not available for use in the Mississippi River from South Pass Lighted Whistle Buoy “2”  
and Southwest Pass entrance Midchannel Lighted Whistle Buoy to mile 242.4 above  
Head of Passes near Baton Rouge. Additionally it is not available for use in the Missis-  
sippi River-Gulf Outlet, the Mississippi River-Gulf Outlet Canal, and the Inner Harbor  
Navigational Canal, except to aid the transition from these areas.  
7: Use of 156.375 MHz is available for navigational communications only in the Mississippi  
River from South Pass Lighted Whistle Buoy “2” and Southwest Pass entrance Mid-  
channel Lighted Whistle Buoy to mile 242.4 above head of Passes near Baton Rouge,  
and in addition over the full length of the Mississippi River-Gulf Outlet Canal from en-  
trance to its junction with the Inner Harbor Navigation Canal, and over the ull length of  
the Inner Harbor Navigation Canal from its junction with the Mississippi River to its entry  
to Lake Pontchartrain at the New Seabrook vehicular bridge.  
8: Within 120 km (75 miles) of the United States/Canada border, in the area of the Puget  
Sound and the Strait of Juan de Fuca and its approaches, 157.425 MHz is half of the  
duplex pair designated as Channel 88. In this area, Channel 88 is available to ship  
stations for communications with public coast stations only. More than 120 km (75 miles)  
from the United States/Canada border in the area of the Puget Sound and the Strait of  
Juan de Fuca, its approaches, the Great Lakes, and the St. Lawrence Seaway, 157.425  
MHz is available for intership and commercial communications. Outside Puget Sound  
area and its approaches and the Great Lakes, 157.425 MHz is also available for commu-  
nications between commercial fishing vessels and associated aircraft while engaged in  
commercial fishing activities.  
9: When the frequency 156.850 MHz is authorized, it may be used additionally for search  
and rescue training exercises conducted by state or local governments.  
10: The frequency 156.850 MHz is additionally available to coast stations on the Great Lakes  
for transmission of scheduled Coded Marine Weather Forecasts (MAFOR), Great Lakes  
Weather Broadcast (LAWEB) and nscheduled Notices to Mariners or Bulletins. F3C and  
J3C emissions are permitted. Coast Stations on the Great Lakes must cease weather  
broadcasts which cause interference to stations operating on 156.800 MHz until the  
interference problem is resolved.  
11: The frequency 157.100 MHz is authorized for search and rescue training exercises by  
state or local government in conjunction with U.S. Coast Guard stations. Prior U.S. Coast  
Guard approval is required. Use must cease immediately on U.S. Coast Guard request.  
12: The duplex pair for channel 20 (157.000/161.600 MHz) may be used for ship to coast  
station communications.  
13: Available for assignment to coast stations, the use of which is in accord with an agreed  
program, for the broadcast of information to ship stations concerning the environmental  
conditions in which vessels operate, i.e., weather; sea conditions; time signals; notices  
to mariners; and hazards to navigation.  
14: Available only in the Puget Sound and the Strait of Juan de Fuca.  
15: The frequency 156.525 MHz is to be used exclusively for distress, safety and calling  
using digital selective calling techniques. No other uses are permitted.  
16: The frequency 156.450 MHz is available for intership, ship and coast general purpose  
calling by noncommercial vessels, such as recreational boats and private coast stations.  
17: The frequency 156.425 MHz is assigned by rule to private coast stations in Alaska for  
facsimile transmissions as well as voice communications.  
Page 82  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
16. WARRANTY  
Marine Products Limited Warranty  
STANDARD HORIZON (a division of Vertex Standard) warrants, to the original  
purchaser only, each new Marine Communications Product (“Product”) manu-  
factured and/or supplied by STANDARD HORIZON against defects in materi-  
als and workmanship under normal use and service for a period of time from  
the date of purchase as follows:  
Fixed Mount and Portable Transceivers  
1 year - if purchased before 01/01/91  
3 years - if purchased between 01/01/91 and 01/01/94  
3 years Waterproof - if purchased after 01/01/94  
Loud hailers  
1 year - if purchased before 01/01/91  
3 years - if purchased after 01/01/91  
Associated Chargers  
1 year - if purchased before 01/01/91  
3 years - if purchased after 01/01/91  
Associated Batteries - 1 year. Note: Batteries will be deemed deflective only if  
storage capacity drops below 80% of rated capacity or if leakage develops.  
Associated Accessories - 1 year. Includes: Microphones/Handsets, External  
Speakers,Antennas, CarryingAccessories, Power Supplies, and Signaling Boards.  
To receive warranty service, the purchaser must deliver the Product, transpor-  
tation and insurance prepaid, to STANDARD HORIZON (a division of Vertex  
Standard), Attention Marine repairs 10900 Walker Street, Cypress, CA 90630.  
Include proof of purchase indicating model. serial number, and date of pur-  
chase. STANDARD HORIZON will return the Product to the purchaser freight  
prepaid. Products purchased prior to January 1, 1991 will bear the STANDARD  
HORIZON warranty terms in effect prior to that date.  
In the event of a defect, malfunction or failure of the Product during the war-  
ranty period, STANDARD HORIZON’s liability for any breach of contract or any  
breach of express or implied warranties in connection with the sale of Products  
shall be limited solely to repair or replacement, at its option, of the Product or  
part(s) therein which, upon examination by STANDARD HORIZON, appear to  
be defective or not up to factory specifications. STANDARD HORIZON may, at  
its option, repair or replace parts or subassemblies with new or reconditioned  
parts and subassemblies. Parts thus repaired or replaced are warranted for the  
balance of the original applicable warranty.  
GX3500S  
Page 83  
Download from Www.Somanuals.com. All Manuals Search And Download.  
STANDARD HORIZON will not warrant installation, maintenance or service of  
the Products. In all instances, STANDARD HORIZON’s liability for damages shall  
not exceed the purchase price of the defective Product.  
This warranty only extends to Products sold within the 50 States of the United  
States of America and the District of Columbia.  
STANDARD HORIZON will pay all labor to repair the product and replacement  
parts charges incurred in providing the warranty service except where purchaser  
abuse or other qualifying exceptions exist. The purchaser must pay any trans-  
portation expenses incurred in returning the Product to STANDARD HORIZON  
for service.  
This limited warranty does not extend to any Product which has been subjected  
to misuse, neglect, accident, incorrect wiring by anyone other than STANDARD  
HORIZON, improper installation, or subjected to use in violation of instructions  
furnished by STANDARD HORIZON, nor does this warranty extend to Prod-  
ucts on which the serial number has been removed, defaced, or changed. STAN-  
DARD HORIZON cannot be responsible in any way for ancillary equipment not  
furnished by STANDARD HORIZON which is attached to or used in connection  
with STANDARD HORIZON’s Products, or for the operation of the Product with  
any ancillary equipment, and all such equipment is expressly excluded from  
this warranty. STANDARD HORIZON disclaims liability for range, coverage, or  
operation of the Product and ancillary equipment as a whole under this war-  
ranty. STANDARD HORIZON reserves the right to make changes or improve-  
ments in Products, during subsequent production, without incurring the obliga-  
tion to install such changes or improvements on previously manufactured Prod-  
ucts.  
The implied warranties which the law imposes on the sale of this Product are  
expressly LIMITED, in duration, to the time period specified above. STANDARD  
HORIZON shall not be liable under any circumstances for consequential dam-  
ages resulting from the use and operation of this Product, or from the breach of  
this LIMITED WARRANTY, any implied warranties, or any contract with STAN-  
DARD HORIZON. IN CONNECTION WITH THE SALE OF ITS PRODUCTS,  
STANDARD HORIZON MAKES NO WARRANTIES, EXPRESS OR IMPLIED  
AS TO THE MERCHANTABILITY OR FITNESS FOR A PARTICULAR PUR-  
POSE OR OTHERWISE, EXCEPT AS EXPRESSLY SET FORTH HEREIN.  
Some states do not allow the exclusion or limitation of incidental or consequen-  
tial damages, or limitation on how long an implied warranty lasts, so the above  
limitations or exclusions may not apply. This warranty gives specific legal rights,  
and there may be other rights which may vary from state to state.  
Page 84  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
ONLY PRODUCTS SOLD ON OR AFTER JANUARY 1, 1991 ARE COVERED  
UNDER THE TERMS OF THIS LIMITED WARRANTY.  
ON-LINE WARRANTY REGISTRATION  
THANK YOU for buying Marine Division of Vertex Standard products!  
We are confident your new radio will serve your needs for many years!  
Please visit www.standardhorizon.com to register the GX3500S  
Marine VHF. It should be noted that visiting the Web site from time to  
time may be beneficial to you, as new products are released they will  
appear on the STANDARD HORIZON Web site. Also a statement re-  
garding product support should be added to the manual.  
Product Support Inquiries  
If you have any questions or comments regarding the use of the GX3500S,  
you can visit the STANDARD HORIZON Web site to send an E-Mail or  
contact the Product Support team at (714) 827-7600 ext 6300 M-F 7:00-  
5:00PST.  
In addition to the warranty, STANDARD HORIZON includes a lifetime “flat  
rate” and “customer loyalty” programs to provide service after the warranty  
period has expired. If you wish to obtain the flat rate price for out-of-war-  
ranty repair, you must include the information on the Owner’s Record with  
the unit when you return it to your Dealer or to STANDARD HORIZON.  
Lifetime Flat Rate Service Program: For the original Owner only, for the  
lifetime of the unit, STANDARD HORIZON will repair the unit to original  
specifications.  
Note: The flat rate amount is payable by the Owner only if STANDARD  
HORIZON or the STANDARD HORIZON Dealer determines that a re-  
pair is needed. After the repair, a 90-day warranty will be in effect from  
the date of return of the unit to the Owner.  
This service program is not available for equipment which has failed as a  
result of neglect, accident, breakage, misuse, improper installation or  
modification, or water damage (depending on the product).  
GX3500S  
Page 85  
Download from Www.Somanuals.com. All Manuals Search And Download.  
17 SPECIFICATIONS  
Performance specifications are nominal, unless otherwise indicated, and are  
subject to change without notice.  
17.1 GENERAL  
Channels ............................................................. All USA, International and Canadian  
Input Voltage ....................................................................................... 13.8 VDC 20%  
Current Drain  
Standby ........................................................................................................... 0.5 A  
Receive ........................................................................................................... 1.5 A  
Transmit................................................................................... 5.0 A (Hi); 1.5 A (Lo)  
Dimensions ........................................................... 3-9/16” H x 9-1/16” W x 5-29/32” D  
(90 H x 230 W x 150 D mm)  
Flush-Mount Dimensions ........................................ 2-27/32” H x 8-5/64” W x 5-1/8” D  
(72 H x 205 W x 130 D mm)  
Weight................................................................................................. 3.2 lbs (1.45 kg)  
17.2 TRANSMITTER  
Frequency Range ..................................................................156.025 to 157.425 MHz  
RF Output ......................................................................................25 W (Hi); 1 W (Lo)  
Conducted Spurious Emissions ................................................. 80 dB (Hi); 60 dB (Lo)  
Audio Response ..............................................................within +1/-3 of a 6 dB/octave  
pre-emphasis characteristic at 300 to 3000 Hz  
Audio Distortion ...................................................................................................... 5 %  
Modulation ..................................................................... 16K0G3E, for DSC 16K0G2B  
Frequency Stability (-20°C to +50°C)............................................................ 0.0005%  
FM Hum and Noise .............................................................................................. 50 dB  
17.3 RECEIVER  
Frequency Range ..................................................................156.050 to 163.275 MHz  
Sensitivity  
12 dB SINAD ............................................................................................... 0.25 µV  
12 dB SINAD (70 CH Receiver) ..................................................................0.30 µV  
Squelch Sensitivity (Threshold)...................................................................0.13 µV  
Modulation Acceptance Bandwidth ................................................................. 7.5 kHz  
Selectivity  
Spurious and Image Rejection ................................................... better than -70 dB  
Intermodulation and Rejection at 12 dB SINAD ......................... better than -70 dB  
Audio Output ........................................................................................................4.5 W  
Audio Response ............................................................within + 2/–8 of a 6 dB/octave  
de-emphasis characteristic at 300 to 3000 Hz  
Frequency Stability (-20°C to +50°C)........................................................... 0.0005 %  
Channel Spacing ................................................................................................ 25 kHz  
DSC Format ............................................................................................. RTCMSC101  
NMEA Input/Output ........................................................................ Output - DSC, DSE  
Input - GLL, GGA, RMC and GNS  
Page 86  
GX3500S  
Download from Www.Somanuals.com. All Manuals Search And Download.  
18 APPENDIX  
FOG HORN TIMING CHART  
The fog horn function sounds a horn repeatedly until the function is turned off.  
TYPE  
UNDERWAY  
PATTERN  
One 5-second blasts evey 120 seconds.  
USAGE  
Motor vessel underway and  
making way.  
Listen Back  
120s  
STOP  
SAIL  
Two 5-second blasts (separated by 2  
seconds) evey 120 seconds.  
Motor vessel underway but  
stopped (not making way).  
5s  
5s  
Listen Back  
120s  
2s  
2s  
One 5-second blasts followed by two 1-  
second blasts (separated by 2 seconds)  
evey 120 seconds.  
Sailling vessel underway, fish-  
ing vessel (underway or an-  
chored), vessel not under  
command, a vessel restricted  
in her ability to maneuver (un-  
derway or at anchor), or a  
vessel towing or pushing an-  
other ahead.  
1s 1s  
1s 1s  
Listen Back  
120s  
2s 2s  
2s 2s  
TOW  
One 5-second blasts followed by three 1-  
second blasts (separated by 2 seconds)  
evey 120 seconds.  
Vessel under tow (manned).  
1s 1s 1s  
1s 1s 1s  
Listen Back  
2s 2s 2s  
2s 2s 2s  
120s  
AGROUND  
One 11-second rings evey 60 seconds.  
Vessel is aground.  
Listen Back  
60s  
ANCHOR  
One 5-second rings evey 60 seconds.  
Vessel is at anchor.  
Listen Back  
60s  
GX3500S  
Page 87  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Copyright 2004  
VERTEX STANDARD CO., LTD.  
All rights reserved.  
Marine Division of VERTEX STANDARD  
US Headquarters  
10900 Walker Street, Cypress, CA 90630, U.S.A.  
No portion of this manual  
may be reproduced  
without the permission of  
VERTEX STANDARD CO., LTD.  
E M 0 0 6 N 2 0 0  
0410p-0Y  
Download from Www.Somanuals.com. All Manuals Search And Download.  

Sibir Optics Refrigerator V 110 GE User Manual
Snapper Lawn Mower 1691423 User Manual
Sony Film Camera DXC 990 User Manual
Sony Home Theater System DAV BC150 User Manual
Sony Portable CD Player D C21 User Manual
Sony Satellite TV System SAT B2 User Manual
Sony Stereo Receiver Model STR DE435 User Manual
StarTechcom Network Card PCI4S9503V User Manual
Stovax Stove 7054 User Manual
Swann Security Camera SW214 ODC User Manual