Standard Horizon Fish Finder Hx750s User Manual
HX750S  
Floating Marine Transceiver  
Owner’s Manual  
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Congratulations on your purchase of the HX750S! Whether this is your first  
portable marine VHF transceiver, or if you have other STANDARD HORIZON  
equipment, the STANDARD HORIZON organization is committed to ensuring  
your enjoyment of this high performance transceiver, which should provide  
you with many years of satisfying communications even in the harshest of  
environments. STANDARD HORIZON technical support personnel stands  
behind every product sold, and we invite you to contact us should you require  
technical advice or assistance.  
We appreciate your purchase of the HX750S, and encourage you to read this  
manual thoroughly, so as to learn and fully understand the capabilities of the  
HX750S.  
NOTE  
Water resistance of the transceiver is assured only when the battery  
pack is attached to the transceiver and MIC/SP cap is installed in the  
MIC/SP jack.  
WARNING  
This radio is capable of transmitting on Marine VHF.  
The FCC allows the use of VHF Marine band on water areas only. How-  
ever the FCC does not allow the use of the VHF Marine band when on  
land. If persons use the VHF Marine Band on land and interfere with  
others communicating, the FCC will be notified and search for the inter-  
ference. Responsible parties found to be transmitting on the VHF Ma-  
rine Band on land could be fined up to $10,000 for the first offense.  
HX750S  
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RF EXPOSURE SAFETY STATEMENT  
SAFETY INFORMATION  
Your wireless handheld portable transceiver contains a low power trans-  
mitter. When the Push-to-Talk (PTT) button is pushed, the transceiver  
sends out radio frequency (RF) signals. In August 1996, the Federal  
Communications Commission adopted RF exposure guidelines with  
safety levels for hand-held wireless devices.  
This device is authorized to operate at a duty factor not to exceed 50%  
(this corresponds to 50% transmission time and 50% reception time).  
WARNING: To maintain compliance with the FCC’s RF exposure guide-  
lines, this transmitter and its antenna must maintain a separation dis-  
tance of at least 1 inch (2.5 centimeters) from your face. Speak in a  
normal voice, with the antenna pointed up and away from the face at the  
required separation distance.  
If you use a headset accessory for this radio, with the radio worn on  
your body, use only the Vertex Standard belt clip for this transceiver, and  
ensure that the antenna is at least 1 inch (2.5 centimeters) from your  
body when transmitting.  
Use only the supplied antenna. Unauthorized antennas, modifications,  
or attachments could damage the transmitter, and may violate FCC regu-  
lations.  
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FCC AND CANADA RADIO LICENSE INFORMATION  
Standard Horizon radios comply with the Federal Communication Commis-  
sion (FCC) and Industry-Canada requirements that regulate the Maritime Ra-  
dio Service.  
MARITIME STATION LICENSE  
An FCC ship station license is no longer required for any vessel traveling in  
U.S. waters which uses a VHF marine radio, RADAR or EPIRB, and which is  
not required to carry radio equipment. However, any vessel required to carry a  
marine radio on an international voyage, carrying a HF single side band radio-  
telephone or marine satellite terminal. FCC license forms, including applica-  
tions for ship (605) and land station licenses can be downloaded via the Internet  
at www.fcc.gov/Forms/Form605/605.html. To obtain a form from the FCC, call  
(888) 225-5322.  
MARINE 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.  
FCC Type Accepted: ........................................................................... Part 80  
Output Power with FNB-V99LI: ............1.0/2.5/5.0/6.0 W (Low/Mid/High/Nor)  
Emission:......................................................................................... 16K0G3E  
Frequency Range:.................................................... 156.025 to 163.275MHz  
FCC Type Number: .................................................................. K6630323X30  
Industry Canada Type Approval: ........................................... 511B-30323X30  
HX750S  
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FCC NOTICE  
Unauthorized changes or modifications to this equipment may void compli-  
ance with FCC Rules. Any change or modification must be approved in writing  
by STANDARD HORIZON, a 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  
interference 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 de-  
termined 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:  
y Increase the separation between the equipment and receiver.  
y Connect the equipment into an outlet on a circuit different from that to  
which the receiver is connected.  
y Consult the dealer or an experienced marine electronics technician for  
help.  
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HX750S  
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1. GENERAL INFORMATION  
1.1 INTRODUCTION  
The HX750S is a Submersible Floating 6-Watt portable two way marine trans-  
ceiver. The transceiver has all allocated USA, International, or Canadian chan-  
nels. It has emergency channel 16 which can be immediately selected from  
[
]
any channel by pressing the 16/9 key. NOAA (National Oceanic and Atmo-  
spheric Administration) Weather channels can also be accessed immediately  
[
]
by pressing the WX key.  
The HX750S includes the following features: Memory Scanning, Priority Scan-  
ning, NOAA Weather Alert, Battery Saver, easy-to-read large LCD display,  
EEPROM memory back-up, Battery Life displayed on LCD, and a transmit  
Time-Out Timer (TOT).  
The HX750S transmitter provides a full 6 Watt of transmit power and also is  
selectable to 5, 2.5, and 1 Watt to assist the user in ensuring maximum battery  
life.  
HX750S  
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2. ACCESSORIES  
2.1 PACKING LIST  
When the package containing the transceiver is first opened, please check it  
for the following contents:  
y
y
y
y
y
y
y
y
HX750S Transceiver  
CAT460 Antenna  
FNB-V99LI 7.4 V, 1150 mAh Li-Ion Battery Pack  
CD-39 Charger Cradle for HX750S  
NC-88B 120VAC Wall Charger for CD-39  
E-DC-19A DC Cable with 12 V Cigarette Lighter Plug for CD-39  
CLIP-19 Belt Clip  
Owner’s Manual  
2.2 OPTIONS  
MH-73A4B  
Speaker/Microphone  
Mini Speaker/Micro-  
phone  
MH-57A4B  
VC-24  
VC-27  
CN-3  
VOX Headset  
Earpiece/Microphone  
Radio-to-Ship’s-Antenna  
Adapter  
CD-39  
Charger Cradle  
FNB-V99LI 7.4 V, 1150 mAh Li-Ion  
Battery Pack  
FBA-38  
E-DC-19A  
Alkaline Battery Case  
DC Cable with 12 V  
Cigarette Lighter Plug  
NC-88B/C/UÚ AC Wall Charger for the  
FNB-V99LI  
E-DC-6  
DC Cable; plug and wire  
only  
:
Ú “B” suffix is for use with 120 VAC (Type-  
A plug), “C” suffix is for use with 230 VAC  
(Type-C plug), and “U” suffix is for use  
with 230 VAC (Type-BF plug).  
Note: Before operating the HX750S for the  
first time, it is recommended that the bat-  
tery be charged. Please see section “4.1.3 BATTERY CHARGING” for details.  
Page 8  
HX750S  
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3. ABOUT THIS RADIO  
3.1 ABOUT THE VHF MARINE BAND  
WARNING  
The radio frequencies used in the VHF marine band lie between 156 and  
158 MHz with NOAA Weather stations available between 161 and 163  
MHz. The marine VHF band provides communications over distances  
that are essentially “Line of sight” Actual transmission range depends  
much more on antenna type, gain and height than on the power output of  
the transmitter. On a fixed mount 25 W radio transmission expected dis-  
tances can be greater than 15 miles, for a portable 6 W radio transmis-  
sion the expected distance can be greater than 5 miles in “Line of sight”.  
The user of a Marine VHF radio is subject to severe fines if the radio is  
used on land. The reasoning for this is you may be near an inland water-  
way, or propagation anomalies may cause your transmission to be heard  
in a waterway. If this occurs, depending upon the marine VHF channel  
on which you are transmitting, you could interfere with a search and res-  
cue case, or contribute to a collision between passing ships. For VHF  
Marine channel assignments refer to page 38 section 10.  
HX750S  
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4. GETTING STARTED  
If the radio has never been used, or its charge is depleted, it may be charged  
by connecting the CD-39 Charger Cradle with the NC-88B battery charger, as  
shown in the illustration. If 12V DC power is available, the optional E-DC-19A  
DC Cable with 12 V Cigarette Lighter Plug or the optional E-DC-6 DC Cable  
may be used for charging the battery. The NC-88B, E-DC-19A, and E-DC-6  
will charge a completely discharged FNB-V99LI battery pack in about 8 hours.  
4.1 BATTERIES AND CHARGERS  
The FNB-V99LI is a high performance Li-Ion battery providing high capacity in  
a compact package.  
CAUTION  
To avoid risk of explosion and injury, FNB-V99LI battery pack should  
only be removed, charged or recharged in non-hazardous environments.  
4.1.1 BATTERY SAFETY  
Battery packs for your transceiver contain Li-Ion batteries. This type of battery  
stores a charge powerful enough to be dangerous if misused or abused, espe-  
cially when removed from the transceiver. Please observe the following pre-  
cautions:  
DO NOT SHORT BATTERY PACK TERMINALS: Shorting the terminals that  
power the transceiver can cause sparks, severe overheating, burns, and bat-  
tery cell damage. If the short is of sufficient duration, it is possible to melt  
battery components. Do not place a loose battery pack on or near metal sur-  
faces or objects such as paper clips, keys, tools, etc. When the battery pack is  
installed on the transceiver, the terminals that transfer current to the trans-  
ceiver are not exposed. The terminals that are exposed on the battery pack  
when it is mounted on the transceiver are charging terminals only and do not  
constitute a hazard.  
DO NOT INCINERATE: Do not dispose of any battery in a fire or incinerator.  
The heat of fire may cause battery cells to explode and/or release dangerous  
gases.  
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Battery Maintenance  
For safe and proper battery use, please observe the following:  
y
y
y
Battery packs should be charged only in non-hazardous environments;  
Use only STANDARD HORIZON-approved batteries;  
Use only a STANDARD HORIZON, (a Marine Division of VERTEX  
STANDARD) approved charger. The use of any other charger may  
cause permanent damage to the battery.  
y
y
Follow charging instructions provided with the chargers.  
Keep the battery contacts clean.  
Battery Storage  
Store the batteries in a cool place to maximize storage life. Since batteries are  
subject to self-discharge, avoid high storage temperatures that cause large  
self-discharge rates. After extended storage, a full recharge is recommended.  
Battery Recycling  
DO NOT PLACE USED BATTERIES IN YOUR REGULAR TRASH!  
LI-ION BATTERIES MUST BE COLLECTED, RECYCLED OR DISPOSED  
OF IN AN ENVIRONMENTALLY SOUND MANNER.  
The incineration, land filling or mixing of Li-Ion batteries with the municipal  
solid waste stream is PROHIBITED BY LAW in most areas.  
Return batteries to an approved Li-Ion battery recycler. This may be where  
you purchased the battery.  
Contact your local waste management officials for other information regarding  
the environmentally sound collection, recycling and disposal of Li-Ion batter-  
ies.  
HX750S  
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4.1.2 BATTERY INSTALLATION/REMOVAL  
1. To install the battery pack, insert the battery pack into the battery rest on  
the bottom of the transceiver, then turn the Battery Pack Lock to the “LOCK”  
position with a coin.  
2. To remove the battery pack, turn the transceiver off, open the Battery Pack  
Lock on the bottom of the transceiver, then slide out the battery from the  
transceiver.  
NOTE  
The battery lock must be set to “LOCK” position to ensure water integ-  
rity and from the battery coming loose.  
BELT CLIP INSTALLATION / REMOVAL  
REMOVAL  
INSTALLATION  
Pulling the Belt Clip toward up  
Install the Belt Clip as shown  
below.  
(
)
c
while pulling the top edge of  
(
)
d
the Belt Clip toward back  
.
c
d
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4.1.3 BATTERY CHARGING  
1. Turn the transceiver off.  
2. Insert the DC plug from the NC-  
88B into the DC jack on the CD-  
39 side panel, then plug the NC-  
88B into the AC line outlet.  
3. Insert the HX750S (with the bat-  
tery pack) into the CD-39; the  
antenna should be at the left side  
when viewing the charger from  
the front.  
4. If the HX750S is inserted cor-  
rectly, the Red “CHARGING” in-  
dicator will glow. A fully-dis-  
charged pack will be charged  
completely in approximately 8  
hours.  
NC-88B  
5. When charging is completed, the  
red LED indicator will change to  
green.  
CD-39  
CAUTION  
The CD-39 is NOT designed to be waterproof. Do not attempt to charge  
in water hazardous locations.  
NOTE  
The CD-39 is only designed for the charging of the HX750S’s battery,  
and is not suitable for other purposes. The CD-39 may contribute noise  
to TV and radio reception in the immediate vicinity, so we do not recom-  
mend its use adjacent to such device.  
HX750S  
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5. CONTROLS AND INDICATORS  
5.1 CONTROLS AND SWITCHES  
NOTE  
This section defines each control of the transceiver. For detailed operat-  
ing instructions, refer to section 6 “BASIC OPERATION”. Refer to illus-  
trations for the location of the following controls, switches, and connec-  
tions.  
c
d
e
f
i
g
h
j
NOTE  
When transmitting, position  
your mouth about 1/2 to 1  
inch (1.2 ~ 2.5 cm) away  
from the small mic hole.  
Speak slowly and clearly  
into the microphone.  
k
(
)
ANT Jack Top Panel  
c
d
The supplied CAT460 flexible antenna is attached here.  
(
)
MIC/SP Jack Top Panel  
The jack accepts the optional MH-73A4B Speaker/Microphone, MH-57A4B  
Mini Speaker/Microphone, VC-24 VOX Headset, or VC-27 Earpiece/Mi-  
crophone. When this jack is used, the internal speaker and microphone  
are disabled.  
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(
)
PTT PUSH-TO-TALK Switch  
e
f
When pushed activates the transmitter.  
Keypad  
[
]
VOL Key  
[ ] [ ]  
Press this key to activate the volume adjusting mode. Press the T or S  
key to adjust the receiver audio volume level.  
[
]
SQL Key  
Press this key to activate the squelch adjusting mode. Press the [T] or [S]  
key to adjust the squelch threshold level.  
Press and hold this key for 3 seconds to open the squelch, allowing you to  
monitor the operating channel. Release the key to resume normal (quiet)  
monitoring.  
[
(
)]  
S UP Key  
This key is used to change the operating channel, receiver volume level,  
and squelch threshold level.  
Press the key momentarily, the channel (or level) increases one step. Hold-  
ing the key, the channel (or level) increases continuously.  
[
(
)]  
T DOWN Key  
This key is used to change the operating channel, receiver volume level,  
and squelch threshold level.  
Press the key momentarily, the channel (or level) decreases one step.  
Holding the key, the channel (or level) decreases continuously.  
[
]
WX Key  
Immediately recalls the last-used NOAA(National Oceanic and Atmospheric  
Administration) Weather Channel from any channel location. Recalls the  
[
]
previously- selected working channel when the WX key is pressed again.  
Secondary use:  
[
]
[
]
When the 16/9 key is held and the WX key is pressed, the radio will  
change the marine band between the USA, International, and Canadian  
channels.  
[
(
)]  
SCAN DW Key  
Starts scanning and priority scanning of programmed channels. When scan-  
ning, press and hold this key to turn on and off priority scan (“P” icon is  
shown on the bottom left side of the display during Priority scanning).  
HX750S  
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[
(
)]  
Key  
H/L  
Press this key to toggle the transmitter output power between “Normal” (6  
Watts), “High” (5 Watts), “Medium” (2.5 Watts), and “Low” (1 Watt) power.  
This key does not function on the “Transmission Inhibited” and “Low power  
only” channels.  
Secondary use:  
[
] [  
]
Hold down this key to lock the keypad (except the PTT, VOL , SQL ,  
[
(
)] )]  
[
(
POWER  
, and H/L  
keys) so that they are not accidentally  
changed. The “ ” icon will appear at the bottom right corner on the dis-  
play, to indicate that the functions are locked. Hold down this key until the  
“
” icon disappears to unlock the radio.  
[
]
16/9 Key  
Pressing this key immediately recalls channel 16 from any channel loca-  
tion. Holding down this key recalls channel 9. Pressing this key again re-  
verts to the previous selected working channel.  
[
]
MEM Key  
Press this key to memorize the selected channel for scanning. When  
pressed a “MEM” icon will be shown on the LCD display indicating the  
channel has been saved to scan memory. The scan memory is only used  
with the Marine and WX channels.  
To delete the channel from scan memory, select the channel and press  
this key until “MEM” is removed from the display.  
Secondary use:  
To enable the SOS Strobe light, turn off radio, press and hold this key while  
turning on. To turn off strobe light, turn radio off and back on.  
[
(
)]  
Key  
POWER  
Press and hold this orange key for three seconds to toggle the transceiver’s  
power on and off.  
[
]
PRESET Key  
Immediately recalls one of up to 10 user preset memories for each band  
(shown as “0” - “9” on the LCD). Pressing this key repeatedly scrolls through  
the preset memory channels.  
TX/BUSY Indicator  
g
This indicator glows green when a signal is being received and red when  
transmitting.  
When the Emergency feature is activated, this indicator blinks the interna-  
tionally-recognized Morse Code “S.O.S” message.  
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Thermo Sensor  
h
To measure a water temperature, soak the radio so the sensor is covered  
by water for several minutes to see the actual water temperature.  
NOTE  
It may take a few minutes for the temperature to register correctly.  
NOTE  
The temperature sensor may not display the correct temperature  
when the internal temperature of the radio is to hot; for example,  
while transmitting a lot so the radio becomes hot.  
Microphone  
i
The internal microphone is located here.  
NOTE  
When transmitting, position your mouth about 1/2 to 1 inch (1.2 ~  
2.5 cm) away from the small mic hole. Speak slowly and clearly into  
the microphone.  
Speaker  
j
k
The internal speaker is located here.  
(
)
Battery Pack Lock Bottom side  
Turn the Battery Pack Lock to the “OPEN” position for battery removal.  
HX750S  
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5.2 INDICATORS  
Information Bar  
The temperature or battery voltage is shown here.  
/
/
Indicators  
“
” indicates High power (5 Watts); “ ” indicates Medium power (2.5  
Watts); and “ ” is for Low power (1 Watt). “Blank” in this location indicates  
Normal power (6 Watts).  
VOL Indicator  
This indicator shows the receiver audio volume level.  
SQL Indicator  
This indicator shows the squelch level.  
“SCN” Indicator  
This indicator appears when the Scan is activated.  
“DW” Indicator  
This indicator appears when the Dual Watch is activated.  
“DUP” Indicator  
This indicator appears when the Duplex Channel is selected.  
“P” Indicator  
This indicator shows the channel is in the “Priority Channel”.  
USA/INTL/CAN Indicator  
These indicators show the “band” of operation for the particular channel.  
“USA” indicates the USA band; “INTL” indicates the International band;  
and “CAN” indicates the Canadian band.  
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“
” Indicator  
This indicator appears during transmission.  
“WX” Indicator  
This indicator appears when a NOAA weather channel is selected.  
“MEM” Indicator  
This indicator shows the channel is in the transceiver’s “Scan Memory”.  
Channel Display  
The operating channel is shown on the LCD in both the transmission and  
reception modes.  
“
” Battery Indicator  
When the battery charge is almost depleted, a “  
” icon will appear on  
the display. When this icon appears, it is recommended that you charge  
the battery soon.  
No Icon Full battery  
Lower battery  
Battery is very low  
(Blinking) Prepare to charge the battery  
“
” Indicator  
When the “  
” icon is shown on the LCD, all keys are disabled except for  
] [ ] [ )] )]  
[
(
[
(
the PTT, VOL , SQL , POWER , and H/L  
keys.  
HX750S  
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6. BASIC OPERATION  
6.1 PROHIBITED COMMUNICATIONS  
The FCC prohibits the following communications:  
y
y
y
y
y
False distress or emergency messages:  
Messages to “any boat” except in emergencies and radio tests;  
Messages to or from a vessel on land;  
Transmission while on land;  
Obscene, indecent, or profane language (potential fine of $10,000).  
6.2 INITIAL SETUP  
1. Install the battery pack on the transceiver (see section “4.1.2 BATTERY  
INSTALLATION/REMOVAL”).  
2. Install the antenna onto the transceiver; hold the bottom end of the an-  
tenna, the screw it onto the mating connector on the transceiver until it is  
snug. Do not over-tighten.  
NOTE  
Water resistance of the transceiver is assured only when the battery  
pack is attached to the transceiver and MIC/SP cap is installed in the  
MIC/SP jack.  
6.3 RECEPTION  
1. Press and hold the POWER  
[
(
)]  
key for two seconds to  
turn the transceiver on. The DC supply voltage will be  
indicated on the display for 2 seconds.  
[
]
2. Press the SQL key to activate the squelch adjusting  
[ ]  
mode. Press the T key until the SQL level is “00”, then  
[
]
press the SQL key again (or wait 3 seconds to exit from  
the squelch adjusting mode). This state is known as  
“Squelch Off”.  
[
]
3. Press the VOL key to activate the volume adjusting  
[ ] [ ]  
mode. Press the T / S key until the noise or audio from  
[
]
the speaker is at a comfortable level, then press the VOL  
key again (or wait 3 seconds to exit from the volume ad-  
justing mode).  
[
]
[
]
4. Press the SQL key, then press the S key until the  
random noise disappears. This state is known as the  
“Squelch Threshold”.  
[
]
[
]
5. Press the T or S key to select the desired channel.  
Refer to the channel chart on page 39 for available chan-  
nels.  
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6. When a signal is received, adjust the volume (Press the  
[ ] [ ]  
[
]
VOL key, followed by the T / S key) to desired listen-  
ing level. The TX/BUSY indicator illuminates green indi-  
cating that the channel is being used.  
NOTE  
You may change the speaker audio to have a high or lower sounding  
pitch to assist listening in quiet or noisy environments. See Menu item  
(
)
“02 PC AUDIO PITCH CONTROL ” (page 32) for details.  
6.4 TRANSMISSION  
1. Perform the “6.3 RECEPTION” discussion above.  
2. Before transmitting, monitor the channel and make sure it is clear.  
THIS IS AN FCC REQUIREMENT!  
3. For communications over short distances, press the  
[
(
)]  
key until “ ” is displayed on the LCD. This  
H/L  
indicates Low power (approximately 1 watt).  
Note: Transmitting on 1 watt prolongs battery life. Low  
power (1 watt) should be selected whenever possible.  
4. If using Low power is not effective, select Medium power  
(2.5 watts: “ ” icon appears), High power (5 watts: “  
icon appears), or Normal power (6 watts: No icon) by  
)]  
”
[
(
pressing the H/L  
key.  
5. When receiving a signal, wait until the incoming signal stops before trans-  
mitting. The transceiver cannot transmit and receive simultaneously.  
6. Press the PTT (Push-To-Talk) switch to transmit. During  
transmission, the “  
” indicator will appear on the dis-  
play and the TX/BUSY indicator will grow red.  
7. Position your mouth about 1/2 to 1 inch (1.2 ~ 2.5 cm)  
away from the small mic hole. Speak slowly and clearly into the micro-  
phone.  
8. When the transmission is finished, release the PTT switch.  
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)
6.4.1 TRANSMIT TIME - OUT TIMER TOT  
While the PTT switch is held down, transmission time is limited to 5 minutes.  
This prevents prolonged (unintentional) transmissions. About 10 seconds be-  
fore automatic transmitter shutdown, a warning beep sounds from the speaker.  
The transceiver automatically switches to the receiving mode, even if the PTT  
switch is held down. Before transmitting again, the PTT switch must first be  
released, then wait 10 seconds and then pressed again. This Time-Out-Timer  
(TOT) prevents a continuous transmission that would result from an acciden-  
tally stuck PTT switch.  
HX750S  
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NOTE  
The PTT switch is ignored for 10 seconds after the transceiver auto-  
matically switches to the receiving mode by the TOT feature.  
6.5 USA, CANADIAN, AND INTERNATIONAL CHANNELS  
1. To change from US to International or Canadian Marine Channels, hold  
[
]
[
]
down the 16/9 key and press the WX key. The band  
will change from USA, to International, and to Canadian  
with each press.  
2. “USA” appears on the LCD for the USA band, “INTL”  
appears for the International band, and “CAN” appears for the Canadian  
band  
3. Refer to the marine channel charts in section “10 VHF MARINE CHAN-  
NEL ASSIGNMENTS” for allocated channels.  
6.6 SIMPLEX/DUPLEX CHANNEL USE  
Refer to the VHF MARINE CHANNEL CHART (page 39) for instructions on  
use of simplex and duplex channels.  
NOTE  
All channels are factory-programmed in accordance with FCC (USA),  
Industry Canada and International regulations. The mode of operation  
cannot be altered from simplex to duplex or vice-versa. Simplex (ship to  
ship) or duplex (marine operator) mode is automatically activated, de-  
pending on the channel and whether the USA, International or Cana-  
dian operating band is selected.  
6.7 KEYPAD LOCKING  
In order to prevent accidental channel change, the HX750S’s keypad may be  
locked out.  
[
(
)]  
Hold down the H/L  
] [ ] [  
key to lock the keypad (except the  
)] )]  
[
(
[
(
PTT, VOL , SQL , POWER  
, and H/L  
keys) so  
that they are not accidentally changed. The “ ” icon will  
appear at the bottom right corner on the display, to indicate  
that the functions are locked.  
[
(
)]  
key until the “ ” icon disappears to unlock the radio.  
Hold down the H/L  
Page 22  
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6.8 NOAA WEATHER CHANNELS  
1. To receive a NOAA (National Oceanic and Atmospheric  
[
]
Administration) weather broadcast, press the WX key.  
The transceiver changes to the weather channel mode.  
This mode consists of a preset memory bank containing  
the NOAA weather channels.  
[
]
2. When the WX key is pressed, the transceiver will be set to the last used  
[ ] [ ]  
NOAA weather channel. Press the T or S key to change to other weather  
channels.  
[
]
3. To exit from the weather channel mode, press the WX key. The trans-  
ceiver will revert to the channel you were using prior to switching to the  
weather channel mode.  
6.8.1 NOAA WEATHER ALERT  
In the event of extreme weather disturbances such as storms and hurricanes,  
NOAA sends a “weather alert” consisting of a 1050 Hz tone, followed by weather  
reports on the weather channels.  
When a “weather alert” is received on a weather channel, the transceiver emits  
[
]
a beep tone and the TX/BUSY indicator blinks white. Press the WX key to  
stop the beep tone and listen to the weather reports.  
NOTE  
Options for the Weather Alert feature are available, refer to Menu Mode  
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)
Item “13 ALt WX ALERT ” on page 34 for details.  
6.8.2 NOAA WEATHER ALERT TESTING  
In the event of a major storm or other appreciable weather condition requiring  
vessels at sea (or other bodies of water) to be notified, the NOAA (National  
Oceanographic and Atmospheric Administration) broadcasts a 1050 Hz tone  
that some VHF radios, including your HX750S, can detect for “Weather Alarm”  
purposes (refer to section “6.8.1 NOAA WEATHER ALERT” for a discussion  
of how to use this feature). The 1050 Hz tone, when detected, will produce a  
loud beep in the speaker of the HX750S, to signal that a Weather Alert Broad-  
cast is being received.  
In order to test this system, NOAA broadcasts the 1050 Hz tone every Wednes-  
day sometime between 11 AM and 1 PM local time. You may use this opportu-  
nity to test your HX750S periodically to confirm that the Weather Alert feature  
is working, or for training crew members on how to configure the HX750S to  
receive the NOAA Weather Alerts.  
HX750S  
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6.9 PRESET CHANNELS 0 ~ 9 : INSTANT ACCESS  
Ten user assigned channels can be programmed for instant access. Pressing  
[
]
[
]
the PRESET key activates the user assigned channel bank. If the PRESET  
key is pressed and no channels have been assigned, an alert beep will be  
emitted from the speaker.  
6.9.1 PROGRAMMING  
[
]
[
]
[
]
1. Hold down the PRESET key, and press the T or S key (repeatedly, if  
necessary) until the desired channel number is displayed.  
2. With the desired channel number displayed, release the  
[
]
PRESET key. The Preset Channel number “0” will ap-  
pear at the right of the channel number on the display for  
1 second.  
3. Repeat steps 1 and 2 to program the desired channels into Preset Chan-  
nels “1” ~ “9”.  
[
]
4. To delete a Preset Channel, hold down the PRESET key and press the  
[ ] [ ]  
T or S key until the Preset Channel number to be deleted is displayed,  
[
]
then release the PRESET key.  
6.9.2 OPERATION  
[
]
Pressing the PRESET key will toggle between Preset Channels “0” through  
“9” and the last selected “regular” channel. Preset Channel  
“0” is represented by “0” to the right of the channel number  
on the display for 1 second, and preset channel “1” is repre-  
sented by “1” and so forth. The preset channel number will  
disappear after 1 second.  
Page 24  
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6.10 MEMORY SCAN  
The HX750S can be programmed to scan channels from a minimum of 2 chan-  
nels up to all channels in the marine band. If an incoming signal is detected on  
one of the channels during scan, the radio will pause on that channel, allowing  
you to listen to the incoming transmission.  
1. Select the desired channel to be included in the scan memory using the  
[
]
[
]
T or S key.  
[
]
2. Press the MEM key to store the channel into the  
transceiver’s scan memory. “MEM” will be displayed on  
the LCD.  
3. Repeat steps 1 and 2 for all the channels to be scanned.  
4. To delete a channel from the transceiver’s scan memory, select the memo-  
[
]
rized channel, then press the MEM key until “MEM” is removed from the  
display.  
5. All channels programmed remain in the transceiver’s scan memory even if  
the power is turned off.  
6. Adjust the SQL level until background noise is eliminated by pressing the  
[
]
[ ] [  
]
SQL key followed by the T / S key.  
[
(
)]  
7. To start scanning, press the SCAN DW key. The scan proceeds from the  
lowest to the highest programmed channel and stops scanning when a  
transmission is received. Scanning will resume when the  
incoming signal disappears at the end of the transmis-  
sion. A blinking “SCN” icon will appears at the left bottom  
of the display during scanning.  
[
(
)]  
8. To stop the scan, press the SCAN DW key.  
HX750S  
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6.11 PRIORITY SCAN  
The Priority Scanning feature allows the radio to Memory Scan while also  
keeping watch on a particularly important “Priority Channel”. The following  
channels can be set as the Priority Channel: 16, 09, and Preset Channels  
described previously.  
[
]
[
]
1. To set the priority channel, hold down the 16/9 key and press the MEM  
key. The channel will change from “16” to “9” to Preset Channels “0” through  
[
]
[
]
“9” with each press of the MEM key. When the 16/9  
key is released the displayed channel will be set as the  
Priority Channel (the “P” icon will appear at the left side  
of the channel number).  
[
(
)]  
2. For Priority Scanning, press the SCAN DW key to activate the Memory  
[
(
)]  
Scanning, then hold down the SCAN DW key while activating the Memory  
Scan. Scanning will proceed between the memorized channels and the  
Priority Channel. The Priority Channel will be scanned after each pro-  
grammed channel.  
3. As an example of priority scanning, let us say that marine channels “06”,  
“07”, and "08" are memorized in the transceiver's scan memory. Priority  
scanning will proceed in the following sequence:  
[
]
[
]
[
]
[
]
Æ
Æ
Æ
Æ
CH06  
Priority Channel  
CH07  
Priority Channel  
.....  
[
]
[
]
[
]
[
]
Priority Channel  
Æ
Æ
Æ
CH08  
Priority Channel  
CH06  
4. Even when the transceiver stops and listens to the signal of a programmed  
channel, the transceiver will shift to a “dual watch” mode between this  
channel and the priority channel. Therefore, your priority watching of the  
designated channel is not compromised when the scanner has paused on  
an active channel.  
[
(
)]  
5. To stop the Priority Scanning, press the SCAN DW key.  
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6.12 DUAL WATCH  
The Dual Watch feature allows the radio watch the particularly important “Pri-  
ority Channel” (determined section “6.11 PRIORITY SCAN”) and one other  
channel.  
[
]
[
]
1. Select the desired channel using the T or S key.  
[
(
)]  
2. Hold down the SCAN DW key for two seconds, then  
release the key to activate the Dual Watch feature. A small  
blinking “DW” icon will appear on the center bottom of  
the display when the Dual Watch feature is activated.  
3. When a transmission is received on the “Priority Channel”, the radio re-  
ceives the “Priority Channel” until the incoming signal disappears.  
4. The Dual Watch feature will resume when the incoming signal disappears  
at the end of the transmission.  
[
(
)]  
5. Press the SCAN DW key to stop the Dual Watch feature and return to  
normal operation.  
6.13 TRIPLE WATCH  
The Triple Watch feature is similarly the Dual Watch feature. The Triple Watch  
feature watches the channel “16” and “09” while receiving the current channel.  
6.13.1 SETTING UP TRIPLE WATCH FEATURE  
1. Turn the transceiver off.  
[
]
2. Hold down the SQL key, and then turn on the trans-  
[
]
ceiver while still holding down the SQL key.  
3. The “SEt” will appear on the display, indicating that the  
Menu (“Set”) Mode has been activated.  
[
]
4. Press the SQL key to select the Menu item “09  
dt”.  
[
]
[
]
5. Press the T or S key to select “t-”, indicating  
that the Triple Watch feature is selected.  
[
]
6. Press the SQL key to save the new setting, then press  
the PTT switch to exit to normal operation.  
6.13.2 OPERATION  
[
]
[
]
1. Select the desired channel using the T or S key.  
[
(
)]  
2. Hold down the SCAN DW key for two seconds, then release the  
)]  
[
(
SCAN DW key to activate the Triple Watch feature. The radio watches  
the channel “16” and “09” while receiving the current  
channel. A small blinking “DW” icon will appear on the  
center bottom of the display when the Triple Watch fea-  
ture is activated.  
HX750S  
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When a transmission is received on the channel “16”, the radio receives  
the channel “16” until the incoming signal disappears.  
When a transmission is received on the channel “09”, the radio watches  
the channel “16” while receiving the channel “09”.  
3. The Triple Watch feature will resume when the incoming signal disappears  
at the end of the transmission.  
[
(
)]  
4. Press the SCAN DW key to stop the Triple Watch feature and return to  
normal operation.  
To return to the Dual Watch operation, repeat the “6.13.1 SETTING UP TRIPLE  
WATCH FEATURE”, selecting “d-” in step 5.  
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)
6.14 EMERGENCY CHANNEL 16 USE  
Channel 16 is known as the Hail and Distress Channel. An emergency may be  
defined as a threat to life or property. In such instances, be sure the trans-  
ceiver is on and set to CHANNEL 16. Then use the following procedure:  
1. Press the PTT (Push-To-Talk) switch and say “Mayday, Mayday, Mayday.  
This is _____, _____, _____” (your vessel’s name).  
2. Then repeat once: “Mayday, _____” (your vessel’s name).  
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.  
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 PTT switch and listen.  
10. If there is no answer, repeat the above procedure. If there is still no re-  
sponse, try another channel.  
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6.15 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  
contact. For example, Channels 68 and 69 of the U.S. VHF Charts 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, im-  
mediately request another channel by saying “go to”, the number of the other  
channel, 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 PTT (Push-To-Talk) switch.  
When all communication with the other vessel is completed, end the last trans-  
mission by stating your Call Sign and the word “out”. Note that it is not neces-  
sary to state your Call Sign with each transmission, only at the beginning 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.  
HX750S  
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6.16 OPERATING ON CHANNEL 13  
Channel 13 is used at docks, bridges and for maneuvering in port. Messages  
on this channel must concern navigation only, such as meeting and passing in  
restricted waters. In emergencies and when approaching blind river bends,  
[
(
)]  
key will change the power out-  
High power is allowed. Pressing the H/L  
put from Low Power (1 Watt) to Medium (2.5 Watts), High (5 Watts), or Normal  
(6 Watts). When you change from this channel then return to it, low power will  
be automatically selected.  
6.17 OPERATING ON CHANNEL 67  
When channel 67 is used for navigational bridge-to-bridge traffic between ships,  
Normal, High or Medium power may be used temporarily (in the USA band) by  
[
(
)]  
key. When you select this channel again, the trans-  
pressing the H/L  
ceiver will revert to low power.  
6.18 MEASURING WATER TEMPERATURE  
The HX750S can measure water temperature. The measurable temperature  
range is 14 °F to +140 °F (–10 °C to +60 °C).  
6.18.1 ACTIVATING WATER TEMPERATURE SENSOR  
1. Turn the transceiver off.  
[
]
2. Hold down the SQL key, and then turn on the trans-  
[
]
ceiver while still holding down the SQL key.  
3. “SEt” will appear on the display, indicating that the Menu  
(“Set”) Mode has been activated.  
[
]
4. Press the SQL key to select the Menu item “03  
dSP”.  
[
]
[
]
5. Press the T or S key to select “Unit °C” or “Unit  
°F”.  
Unit °C: Indicates the current temperature by °C.  
Unit °F: Indicates the current temperature by °F.  
[
]
6. Press the SQL key to save the new setting, then press  
the PTT switch to exit to normal operation.  
6.18.2 OPERATION  
Soak the thermal sensor on the front panel of the HX750S in  
water for several minutes. The water temperature will be  
shown on the display.  
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6.18.3 CALIBRATING WATER TEMPERATURE SENSOR  
If the temperature display is incorrect, it can be re-calibrated via Menu Mode.  
1. Turn the transceiver off.  
[
]
2. Hold down the SQL key, and then turn on the trans-  
[
]
ceiver while still holding down the SQL key.  
3. “SEt” will appear on the display, indicating that the Menu  
(“Set”) Mode has been activated.  
[
]
4. Press the SQL key to select the Menu item “04 tEP”.  
[
]
[
]
5. Press the T or S key to set the difference between  
HX750S display and the calibrated thermometer.  
For example, if the HX750S display shows “68.0 °F” and  
the (calibrated) thermometer indicates “65.3 °F”, set the  
temperature offset to “–2.7 °F”.  
[
]
6. Press the SQL key to save the new setting, then press  
the PTT switch to exit to normal operation.  
When change the temperature unit (“°FÆ°C” or “°CÆ°F”) via Menu Mode,  
perform this procedures.  
The temperature sensor may not display the correct temperature when  
the temperature inside the radio is high; for example, while the trans-  
mission mode or high receiver audio output.  
6.19 ENABLING S.O.S STROBE OPERATION  
The S.O.S. STROBE feature utilizes the high-intensity strobe LED on the front  
of the HX750S as a visual distress beacon. When enabled, the LED blinks the  
...  
...  
internationally-recognized Morse Code “S.O.S.” message ( --- ) at a rate of  
5 words per minute. This can be very useful in summoning help from rescuers  
who may not be able to communicate with you via radio.  
[
]
1. Hold down the MEM key while turning the radio on to activate the emer-  
gency S.O.S. Strobe. Once the radio comes on, the TX/BUSY LED will  
flash the Morse Code S.O.S. message repeatedly.  
2. The S.O.S. strobe function is interrupted when a signal is received or if the  
squelch control is turned so audio is heard from the speaker.  
3. To disable the S.O.S. strobe function, turn the radio off and back on again.  
HX750S  
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7. MENU “SET” MODE  
The HX750S’s Menu Mode allows a number of the HX750S operating param-  
eters to be custom-configured for your operating requirements.  
The Menu Mode is easy to activate and set, using the following procedure:  
1. Turn the transceiver off.  
[
]
2. Hold down the SQL key, and then turn on the trans-  
[
]
ceiver while still holding down the SQL key.  
3. “SEt” will appear on the display, indicating the Menu (“Set”)  
Mode has been activated.  
[
]
4. Press the SQL key to select the Menu item to be  
adjusted.  
[
]
[
]
5. Press the T or S key to enable adjustment of  
the selected Menu item. The menu item will blink  
[
]
6. Press the SQL key to select the status or value of the  
Menu item.  
7. After completing your adjustment, press the PTT switch to save the new  
setting and exit to normal operation.  
(
)
01 bEP BEEP  
Function: Enable/Disable the Keypad beeper.  
Available Values: on / oFF  
Default: on  
(
)
02 PC AUDIO PITCH CONTROL  
Function: This control changes the speaker audio to have a  
high or lower sounding pitch to assist listening in quiet or  
noisy environments.  
Available Values: on / oFF  
Default: oFF  
(
)
03 dSP DISPLAY MODE  
Function: Select the display of the sensor unit’s informa-  
tion.  
Available Values: Unit °C / Unit °F / V / oFF  
Default: oFF  
Unit °C: Indicates the current temperature by °C.  
Unit °F: Indicates the current temperature by °F.  
V:  
Indicates the battery voltage.  
oFF:  
Disable the temperature and voltage indication.  
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04 tEP TEMP ADJUST  
Function: Calibrating the Thermometer setting  
Available Values: –9.9 ~ +9.9  
Default: 0.0  
See page 31 for details.  
(
)
05 LP LAMP MODE  
Function: Selects the Lamp illumination method for the LCD/  
Keypad.  
Available Values: Cnt / kEY / off  
Default: kEY  
kEY: Illuminates the LCD/Keypad for 5 seconds when any key is pressed.  
Cnt: Illuminates the LCD/Keypad continuously.  
Off: Turns off the backlight for the LCD and keys.  
(
)
06 dr DIMMER  
Function: Adjusting of the display brightness  
Available Values: 00 / 01 / 02 / 03  
Default: 02  
(
)
07 SnL SCAN LAMP  
Function: Enable/Disable the automatic illumination of the  
lamp when a signal is received on a channel during Scan-  
ning  
Available Values: on / oFF  
Default: oFF  
(
)
08 SCn SCAN DISPLAY  
Function: Selects the Scanning display mode  
Available Values: nor (Normal) / SPL (Special)  
Default: nor (Normal)  
When this menu is set to “nor (Normal)”, the channel numbers during scan will  
be shown as scrolling on the display. When “SPL (Special)” is selected the  
channel numbers on the display do not change unless a call was received.  
The channel shown is the last channel that was received.  
(
)
09 dt DUAL WATCH MODE  
Function: Selects dual or tri-watch as desired.  
Available Values: d- (Dual Watch) / t- (Triple Watch)  
Default: d- (Dual Watch)  
See page 27 for details.  
HX750S  
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10 dUL DW DISPLAY  
Function: Selects the Dual Watch scanning display mode.  
Available Values: nor (Normal) / SPL (Special)  
Default: nor (Normal)  
When “SPL (Special)” is selected the channel shown on the display is the last  
channel the HX750S received a call on. This is a handy feature if you cannot  
look at the radio the moment a transmission was received.  
(
)
11 bSY BUSY LED  
Function: Enable/Disable the BUSY LED while the squelch  
is open.  
Available Values: on / oFF  
Default: on  
(
)
12 SOS STROBE ILLUMINATION  
Function: Selects the S.O.S Strobe illumination from con-  
tinuously on to SOS Strobe.  
Available Values: SoS / Cnt (Continuous)  
Default: SoS  
(
)
13 ALt WX ALERT  
Function: Enable/Disable the Weather Alert feature.  
Available Values: on / SCn / on SC / oFF  
Default: on SC  
on:  
When on a weather channel, the radio will alarm when the Weather  
Alert is received.  
Scn: Emits a load beep when the Weather Alert is received while scanning  
the Weather channels.  
on SC: Emits a load beep when the Weather Alert is received while receiving  
the Weather channel and/or scanning the Weather channels.  
oFF: Disable the Weather Alert function.  
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8. INSTALLATION OF OPTIONS  
8.1 FBA-38 ALKALINE BATTERY CASE  
FBA-38 is a battery case that holds five AAA size Alkaline batteries and is  
used with the HX750S transceiver.  
1. Slide the five AAA size Alkaline batteries into the FBA-38 with the Nega-  
tive (–) side of the batteries touching the spring connections inside the  
FBA-38.  
2. Insert the FBA-38 into the battery rest on the bottom of the transceiver,  
and then turn the Battery Pack Lock to the “LOCK” position with a coin.  
NOTE  
When the FBA-38 Alkaline Battery Case is used, the HX750S is not  
able to transmit using 6 W power output.  
HX750S  
Page 35  
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9. MAINTENANCE  
9.1 GENERAL  
The inherent quality of the solid-state components in STANDARD HORIZON  
radios will provide many years of continuous use. Take the following precau-  
tions to prevent damage to the radio.  
y
y
y
y
To prevent corrosion of electrical contacts and keep the water resistance,  
keep the microphone connected or the jack covered at all times.  
Never key the transmitter unless an antenna or suitable dummy load is  
connected to the antenna receptacle.  
Ensure that the input voltage does not exceed the value specified in your  
Owner’s Manual.  
Use only STANDARD HORIZON-approved accessories and replacement  
parts.  
9.2 REPLACEMENT PARTS  
Occasionally an owner needs a replacement part. 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.  
y
y
y
y
y
y
CD-39 Charger Cradle: AAF94X001  
CAT460 Antenna: Q3000176  
CLIP-19 Belt Clip: CP9196001  
MIC/SP Cap: RA0577900  
MIC/SP Cap O-Ring: RA046760A  
MIC/SP Rubber: RA1030500  
Page 36  
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9.3 TROUBLESHOOTING CHART  
SYMPTOM  
PROBABLE CAUSE  
REMEDY  
[
(
)]  
[
]
The SCAN DW key  
No channels memorized.  
Use the MEM key to enter desired  
channels into the transceiver’s  
memory.  
does not start the scan.  
Squelch is not adjusted.  
Adjust the squelch to threshold or  
to the point where noise just dis-  
appears. Further adjustment of the  
squelch control may eliminate in-  
coming signals.  
[
]
The USA/INTL/CAN  
modes do not function.  
Proper operation not  
followed.  
HOLD down the 16/9 key and  
[
]
press the WX key.  
Low battery.  
Charge battery. Refer to section 4  
of this manual.  
Press and holding the  
SQL switch does not  
[
]
eliminate background  
noise.  
[
]
Audio volume level is too low. Press the VOL key and press the  
[
]
S key several times.  
Cannot change any  
function.  
Key Lock is on.  
Turn Key Lock off. Refer to section  
[
(
)]  
key.  
5,  
H/L  
f
[
(
)]  
key for 2  
Key Lock does not  
function.  
Proper operation not  
followed.  
Hold down the H/L  
seconds.  
Indicator does not light  
when charging a battery.  
Defective battery FNB-V99LI. Contact your Standard Horizon  
dealer.  
HX750S  
Page 37  
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10. VHF MARINE CHANNEL ASSIGNMENTS  
Tables on the following pages 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. Chan-  
nel 22 (without an “A”) is an International duplex channel for port opera-  
tions. Some radios indicate an “A” adjacent to the alpha channels on the  
display; on others “alpha” is not indicated but the proper channel is se-  
lected based on the U/I/C setting.  
3. Bridge-to-Bridge channels (for example, Channel 13) are for use by bridge  
operators on inter-coastal 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.  
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.  
Page 38  
HX750S  
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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  
RX  
CHANNEL USE  
156.050 160.650 Public Correspondence (Marine Operator)  
01A  
X
S
156.050  
Port Operation and Commercial.  
VTS in selected areas  
02  
03  
04  
X
X
X
X
X
D
D
D
156.100 160.700 Public Correspondence (Marine Operator)  
156.150 160.750 Public Correspondence (Marine Operator)  
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)  
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  
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.  
- - -  
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  
U.S. Government Only, Canadian Coast Guard  
157.100 161.700 Port operation, ship movement  
22A  
X
X
157.100  
US and Canadian Coast Guard Liaison and  
Maritime Safety Information Broadcasts announced  
on channel 16  
23  
23A  
24  
25  
26  
X
X
D
S
D
D
D
D
D
157.150 161.750 Public Correspondence (Marine Operator)  
157.150 U.S. Government Only  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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)  
27  
28  
HX750S  
Page 39  
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VHF MARINE CHANNEL CHART  
TX RX CHANNEL USE  
156.025 160.625 Public Correspondence (Marine Operator)  
156.075 160.675 Public Correspondence (Marine Operator),  
Port operation, ship movement  
CH  
60  
61  
U
C
X
I
X
X
S/D  
D
D
61A  
62  
X
X
S
D
S
D
S
D
S
D
156.075  
Public Coast: Coast Guard;  
East Coast: commercial fishing only  
X
X
X
156.125 160.725 Public Correspondence (Marine Operator),  
Port operation, ship movement  
62A  
63  
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
X
X
156.175  
Port Operation and Commercial.  
VTS in selected areas.  
156.225 160.825 Public Correspondence (Marine Operator),  
Port operation, ship movement  
64A  
65  
156.225  
Public Correspondence (Marine Operator),  
Port operation, ship movement  
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  
68  
69  
X
X
X
X
X
X
S
S
156.425  
156.475  
Non-commercial (Recreational)  
US: Non-commercial (Recreational),  
Canada: Commercial fishing only,  
International: Inter-ship, Port opertions and Ship  
movement  
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  
72  
73  
X
X
X
X
X
X
S
S
156.625  
156.675  
Non-commercial (Inter-ship only)  
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  
75  
76  
77  
77  
78  
X
X
X
X
X
X
X
X
S
S
S
S
D
156.775  
156.825  
156.875  
156.875  
Port Operations (Inter-ship only) (1W)  
Port Operations (Inter-ship only) (1W)  
Port Operations (Inter-ship only) (1W)  
Port Operations (Inter-ship only)  
X
X
156.925 161.525 Public Correspondence (Marine Operator),  
Port operation, ship-movement  
78A  
79  
79A  
X
X
X
X
S
D
S
156.925  
156.975 161.575 Port operation and Ship movement  
156.975 Commercial  
Non-commercial (Recreational)  
X
Page 40  
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VHF MARINE CHANNEL CHART  
TX RX CHANNEL USE  
157.025 161.625 Port operation, ship movement  
157.025 Commercial  
157.075 161.675 Port operation, ship movement  
CH  
80  
80A  
81  
U
X
X
C
I
X
S/D  
D
S
D
S
X
X
X
81A  
157.075  
U.S. Government Only -  
Environmental protection operations.  
81A  
82  
X
S
D
157.075  
Canadian Coast Guard Only  
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  
83  
83A  
X
D
D
S
157.175 161.775 Canadian Coast Guard Only  
157.175 161.775 Public Correspondence (Marine Operator)  
X
X
157.175  
U.S. Government Only,  
Canadian Coast Guard Only  
84  
85  
86  
87  
87A  
88  
88A  
WX01  
WX02  
WX03  
WX04  
WX05  
WX06  
WX07  
WX08  
WX09  
WX10  
X
X
X
X
X
X
X
X
X
X
X
D
D
D
S
S
S
S
D
D
D
D
D
D
D
D
D
D
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  
157.375  
157.425  
157.425  
Port operation, ship movement  
Public Correspondence (Marine Operator)  
Port operation, ship movement  
Commercial, Inter-ship Only  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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.  
HX750S  
Page 41  
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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.  
156.175 156.175  
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  
156.375  
.......  
Internship only.  
774  
20  
Intership only.  
Intership only.  
Distress, Safety and Calling  
156.800 156.800 EPRIB  
Intership Safety  
157.000 161.600  
16  
06  
20A12 157.000  
Navigational (Bridge-to-Bridge)5  
156.300 ........ a. Intership, or  
b. For SAR: Ship  
136  
677  
156.650 156.650  
156.375 156.375  
and aircraft for the  
U.S. Coast Guard.  
Commercial  
01A1  
63A1  
07A  
677  
08  
09  
156.050 156.050  
156.175 156.175  
156.350 156.350  
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  
Liaison, U.S. Coast Guard  
10  
113  
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.  
18A  
19A  
79A  
80A  
88A8  
7214  
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 permit-  
ted provided they cause no interference to VTS and ship movement communications in  
their respective designated sectors.  
Page 42  
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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 com-  
munications. 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 Mid-channel 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 full 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.  
HX750S  
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11. WARRANTY  
Marine Products Limited Warranty  
PLEASE NOTE  
The following “Limited Warranty” is for valid for products that have been  
purchased in the United States and Canada. For limited Warranty de-  
tails outside the United States, contact the dealer in your country.  
STANDARD HORIZON (a division of VERTEX STANDARD) warrants, to the  
original purchaser only, each new Marine Communications Product (“Prod-  
uct”) manufactured and/or supplied by STANDARD HORIZON against defects  
in materials 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 - 18 months. Note: Batteries will be deemed defective  
only if storage capacity drops below 80% of rated capacity or if leakage develops.  
Associated Accessories - 1 year. Includes: Microphones/Handsets, External  
Speakers, Antennas, Carrying Accessories, 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 VER-  
TEX STANDARD). Include proof of purchase indicating model. serial number,  
and date of purchase. 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,  
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HX750S  
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appear to be defective or not up to factory specifications. STANDARD HORI-  
ZON 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.  
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 pur-  
chaser abuse or other qualifying exceptions exist. The purchaser must pay  
any transportation expenses incurred in returning the Product to STANDARD  
HORIZON for service.  
This limited warranty does not extend to any Product which has been sub-  
jected to misuse, neglect, accident, incorrect wiring by anyone other than STAN-  
DARD HORIZON, improper installation, or subjected to use in violation of in-  
structions furnished by STANDARD HORIZON, nor does this warranty extend  
to Products on which the serial number has been removed, defaced, or changed.  
STANDARD HORIZON cannot be responsible in any way for ancillary equip-  
ment 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 warranty. STANDARD HORIZON reserves the right to make changes  
or improvements in Products, during subsequent production, without incurring  
the obligation to install such changes or improvements on previously manu-  
factured Products.  
The implied warranties which the law imposes on the sale of this Product are  
expressly LIMITED, in duration, to the time period specified above. STAN-  
DARD HORIZON shall not be liable under any circumstances for consequen-  
tial damages resulting from the use and operation of this Product, or from the  
breach of this LIMITED WARRANTY, any implied warranties, or any contract  
with STANDARD 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 PAR-  
TICULAR PURPOSE OR OTHERWISE, EXCEPT AS EXPRESSLY SET  
FORTH HEREIN.  
HX750S  
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Some states do not allow the exclusion or limitation of incidental or conse-  
quential 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.  
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 STANDARD HORIZON (a 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 HX750S 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 regarding prod-  
uct support should be added to the manual.  
Product Support Inquiries  
If you have any questions or comments regarding the use of the HX750S,  
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" program to provide service after the warranty period has ex-  
pired. If you wish to obtain the flat rate price for out-of-warranty 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).  
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MEMO  
HX750S  
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12. SPECIFICATIONS  
Performance specifications are nominal, unless otherwise indicated, and are  
subject to change without notice.  
12.1 GENERAL  
Frequency Ranges:  
TX: 156.025 MHz - 157.425 MHz  
RX: 156.050 MHz - 163.275 MHz  
25 kHz  
Channel Spacing:  
Frequency Stability:  
±10 ppm  
(–4 °F to +140 °F [–20 °C to +60 °C])  
16K0G3E  
Emission Type:  
Antenna Impedance:  
Supply Voltage:  
50 Ω  
7.4V DC, Negative Ground  
(Battery Terminal)  
Current Consumption:  
280 mA (Receive, Typical at AF MAX.)  
50 mA (Standby)  
10 mA (Standby, Saver On)  
1.6 A / 1.5 A / 1.0 A / 0.7 A  
(TX: 6 W / 5 W / 2.5W / 1W)  
–4 °F to +140 °F (–20 °C to +60 °C)  
Operating Temperature:  
Thermometer Operating Range: 14 °F to +140 °F (–10 °C to +60 °C)  
Case Size (W x H x D):  
2.44” x 5.57” x 1.61” (62 x 141.5 x 41 mm)  
(w/o knob & antenna)  
Weight (Approx.):  
10.8 oz (305 g)  
(w/FNB-V99LI, Belt Clip, & Antenna)  
12.2 TRANSMITTER  
RF Power Output:  
Modulation Type:  
Maximum Deviation:  
Spurious Emission:  
Microphone Impedance:  
6 W / 5 W / 2.5 W / 1 W (@7.4 V )  
Variable Reactance  
±5 kHz  
–75 dBc typical  
2 kΩ  
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12.3 RECEIVER  
Circuit Type:  
Intermediate Frequencies:  
Double-Conversion Superheterodyne  
1st: 47.25 MHz  
2nd: 450 kHz  
Adjacent Channel Selectivity:  
Intermodulation:  
70 dB typical  
70 dB typical  
Ham & Noise Ratio:  
Sensitivity:  
Selectivity:  
40 dB typical  
0.25 μV for 12 dB SINAD  
12 kHz / 25 kHz (–6 dB / –60 dB)  
700 mW @16 Ω for 10 % THD (@7.4 V)  
AF Output (Internal SP):  
HX750S  
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MEMO  
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HX750S  
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This device complies with part 15 of the FCC rules. Operation is subject  
to the condition that this device does not cause harmful interference.  
Part 15.21: Changes or modifications to this device not expressly ap-  
proved by Vertex Standard could void the User’s authorization to oper-  
ate this device.  
HX750S  
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Copyright 2008  
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 3 2 N 1 0 1  
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