EFJohnson Two Way Radio 002 9750 003 User Manual

SUMMITDM  
MULTI-NET  
MOBILE RADIO  
OPERATING MANUAL  
SAFETY INFORMATION  
Proper operation of this radio will result in user exposure below the Occupational Safety and Health Act and  
Federal Communication Commission limits.  
WARNING  
DO NOT allow the antenna to come close to, or touch, the eyes, face, or any exposed body parts while the radio is  
transmitting.  
DO NOT operate the radio near electrical blasting caps or in an explosive atmosphere.  
DO NOT operate the radio unless all the radio frequency connectors are secure and any open connectors are prop-  
erly terminated.  
DO NOT allow children to operate transmitter-equipped radio equipment.  
This device complies with Part 15 of the FCC rules. Operation is subject to the condition that this device does not  
cause harmful interference. In addition, changes or modifications to this equipment not expressly approved by the E.F.  
Johnson Company could void the users authority to operate this equipment (FCC rules, 47CFR Part 15.19).  
LAND MOBILE PRODUCT WARRANTY- The manufacturers warranty statement for this product is available  
from your product supplier or from the E.F. Johnson Company, 299 Johnson Avenue, P.O. Box 1249, Waseca, MN  
56093-0514. Phone (507) 835-6222.  
Copyright 1998 by the E.F. Johnson Company  
E.F. Johnson Company, which was founded in 1923, designs, manufactures, and markets radio communication prod-  
ucts, systems, and services worldwide. E.F. Johnson produces equipment for land mobile radio and mobiletelephone  
services which include business, industrial, government, public safety, and personal users.  
Viking head/E.F. Johnson logo, Multi-Net, LTR, Summit, and Call Guard are registered trademarks of the E.F.  
Johnson Company. All other company and/or product names used in this manual are trademarks or registered trade-  
marks of their respective manufacturer.  
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FRONT PANEL CONTROLS AND DISPLAY  
TRANSMIT INDICATOR  
OPTION SWITCHES  
DISPLAY  
PTT SWITCH  
MICROPHONE  
MIC JACK  
ON-OFF/VOL  
SELECT SWITCH  
SPEAKER  
FRONT PANEL CONTROLS  
On-Off/Volume - Pressing this knob turns power on and off. Turning it sets the volume level. The vehicle ignition  
switch may also control power and have to be on. Refer to Power Turn-Off Delayon page 13 for more information.  
If the remote control unit is used with a front mount transceiver to provide dual controls, the volume level may be  
the combined setting of both units.  
Select Switch - This is a dual-function switch that changes the selected system or group and selects information in  
the Menu mode (see page 18).  
When selecting systems or groups, a bar above the system and group digits indicates which is currently being  
changed. To switch this bar between digits, press the Select switch. Then to increase or decrease the selected system or  
group number, turn this switch clockwise or counterclockwise. Only systems and groups in the current bank can be  
changed (see page 12). A tone sounds each time the system or group changes (unless tones have been disabled).  
The transceiver can be programmed so that the bar defaults to either the system or group digit when power is  
turned on or after a digit is changed. In addition, the time that must elapse before it returns after a digit change is  
programmable for 1-15 seconds or infinite.  
Option Switches - Up to six option switches can be programmed by your system operator to control various func-  
tions. A label on the switch identifies the function it controls. The option switch functions are described starting on  
page 18.  
Transmit Indicator - This red indicator shows when the transmitter is on.  
Microphone Jack - Connection point for the microphone.  
Speaker - This transceiver has an internal speaker located behind the grille. An optional external speaker may also  
be used if desired. The internal speaker is disabled when an external speaker is used.  
REMOTE CONTROL UNIT JACK  
ACCESSORY JACK  
ANTENNA JACK  
POWER JACK  
REAR PANEL JACKS  
Antenna Jack - Type N jack for connecting the antenna.  
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Power Jack - Connection point for the 12-volt, negative ground power source.  
Remote Control Unit Jack - Connection point for the remote control unit if it is used. This jack is optional with front  
mount transceivers.  
Accessory Jack - Connection point for the ignition sense input and optional accessories such as an external speaker  
(4-ohm, 12-watt) and horn/light alert.  
PHONE SYSTEM/GROUP  
MONITOR  
ENCRYPTION ENABLED  
ALPHANUMERIC DISPLAY  
SYSTEM NUMBER  
STATUS DISPLAY  
GROUP NUMBER  
DISPLAY  
NOTE: The display backlight may turn on with transceiver power or it may be manually turned on and off with the  
BKLHT option switch or Menu mode “BACKLIGHT” parameter (see page 18).  
System Number - Indicates the currently selected system number. System numbers up to 99 can be programmed.  
Group Number - Indicates the currently selected group number. Group numbers up to 11 (Multi- Net) or 10 (LTR/  
conventional) can be programmed.  
Alphanumeric Display - This 10-character area of the display indicates a unique identification for the selected group.  
For example, GAS TRUCKcould be displayed when a certain group is selected. It also displays various error and  
status messages.  
Status Display - These two characters indicate the following status information:  
Rotating clock-like symbols in both positions indicate that scanning is occurring.  
This symbol in the left position indicates that the displayed system is in the scan list. Likewise, this symbol in the  
right position indicates that the displayed group is in the scan list.  
This symbol in the right position indicates that group scanning is occurring.  
P1/P2 - When a conventional system is selected, P1indicates that a message on a priority 1 group is being re-  
ceived, and P2indicates that a message on a priority 2 group is being received. Refer to Priority Group Sampling”  
on page xx for more information.  
ON/OF - When the menu mode is selected by the MENU switch, ONindicates that the displayed parameter is  
active, and OFindicates that it is inactive.  
- Indicates that the function controlled by the option switch above it is active. For example, this symbol below the  
Scan switch indicates that the scan mode is enabled. Only certain switches require this indicator.  
- Indicates that the displayed system/group is programmed for telephone or special calls.  
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- Indicates that encryption is enabled.  
MON - Indicates that the monitor mode is enabled (conventional systems only). This mode is enabled by taking the  
microphone off-hook or pressing the MON switch (if available). The monitor mode disables squelch control features  
so that all messages are heard on the system. Refer to Monitor Modedescription on page 11 for more information.  
BUSY - On conventional systems only, this indicates when the selected system/group is busy. If this indication ap-  
pears but no message is heard, Call Guard squelch is probably being used and a call was detected for someone else.  
CALL - Indicates that a call was received while you were away from the vehicle. This indication can be programmed  
so that it appears only when certain calls are received. It is turned off by pressing the Select switch, an option switch,  
or the microphone push-to-talk switch, or by turning power off and then on again.  
-” - The bar above the system and group digits indicate which digit will be changed if the Select switch is turned.  
Refer to Select switch description in preceding section for more information.  
STANDARD MOBILE-TO-MOBILE CALLS  
Introduction  
The standard mobile-to-mobile call is the type you will probably make most often. This type of call is between you  
and another mobile or control station in your radio system. The main difference between this call and the telephone and  
special calls described in the next section is that no number is dialed when it is placed.  
Placing a Standard Mobile-To-Mobile Call  
1. Turn power on and set the volume level if required.  
2. If necessary, select the desired system/group using the front panel Select switch (see page x). The selected  
system/group is displayed even when scanning.  
3. If a conventional system is selected, the channel must be monitored before transmitting as described on page x.  
4. Press the microphone PTT (push-to-talk) switch and operation is as follows with the various types of systems:  
Multi-Net and LTR - If the short proceed tone sounds, the system is successfully accessed and speaking can begin.  
Proceed to step 5.  
If a busy condition exists, the busy tone sounds and SYSTEM BSYis displayed. If you keep the PTT switch  
pressed, the system is accessed when it becomes available. Otherwise, try again later. If a Multi-Net system is selected  
and the Busy Queuing feature is programmed (see page 13), the call goes into a queue when the PTT switch is released.  
If an out-of-range condition exists, the intercept tone sounds and OUT-OF-RNGis displayed. Drive the vehicle  
closer to the radio system or away from shielding structures and try again. If a Multi-Net system is selected and the  
Auto-Registration feature is enabled, (see page 14), the transceiver automatically changes sites when an out-of-range  
condition occurs.  
Conventional - If the proceed tone has been enabled by programming, it sounds to indicate that speaking can begin.  
However, the presence of this tone does not indicate that a busy or out-of-range condition does not exist (see Con-  
ventional Operationon page 11).  
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5. Release the PTT switch and listen for a response. The PTT switch must be pressed to talk and released to listen.  
When the conversation is finished, place the microphone back on-hook.  
Receiving a Standard Mobile-to-Mobile Call  
1. Turn power on and set the volume level if required.  
2. Select the desired system/group using the Select switch. If the scan feature is available, you may also enable scan-  
ning by pressing the SCAN option switch.  
3. When a call is received, the display indicates the system and the group of the call. To respond to the call, take the  
microphone off-hook and press the PTT switch. If scanning, the system/group on which a response occurs is  
controlled by programming. See Transmitting In The Scan Modeon page 11.  
4. The PTT switch must be pressed to talk and released to listen. When the conversation is finished, place the micro-  
phone back on-hook.  
TELEPHONE AND OTHER SPECIAL CALLS  
NOTE: In order to place and receive telephone or special calls, your transceiver must have been programmed for  
that service. In addition, you must have a microphone with a DTMF keypad (unless you call only pre-programmed  
numbers).  
Introduction  
Telephone calls allow you to access the public telephone network, and special calls allow you to call specific  
mobiles in your site or some other site. After the system is accessed, a number must be dialed using the microphone  
keypad or recalled from memory using the Phone Mode (see page 15).  
The following information describes how LTR/ Multi-Net telephone calls and Multi-Net special calls are placed  
and received. If you can make telephone calls on conventional systems, the procedure may be slightly different. Your  
system operator will then provide you with additional information.  
Placing a Telephone or Special Call  
1. Turn power on and set the volume level if required.  
2. Take the microphone off-hook and note the displayed system/group. If necessary, select the desired system/group  
using the Select switch. The handset symbol appears in the display when a system/group programmed for a tele-  
phone or special call is selected.  
The Phone Mode may also be selected if you have the PHON option key or TELEPHONE menu parameter (see  
page 15).  
3. Press the PTT switch and then release it when the proceed tone sounds. If a dial tone then sounds, proceed to step  
4. If a busy or out-of-range condition is indicated, proceed as follows:  
Busy - A busy condition is indicated by a busy tone and SYSTEM BSYin the display. If a Multi-Net system is  
selected and the Busy Queuing feature is available (see page 13), it automatically places the call in a queue when PTT  
switch is released.  
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If an LTR system is selected, the Free System Ringback feature is automatically selected when the PTT switch is  
released. This feature signals you when the system is no longer busy (see page 16 for more information).  
Out-of-Range - If an out-of-range condition exists, it is indicated by an intercept tone and OUT-OF-RNGin the  
display. If an LTR system is selected and the System Search feature is available (see page 16), it may be selected to  
automatically search for a free system.  
If a Multi-Net system is selected and the Auto-Registration feature is available (see page 14), it automatically  
changes sites when an out-of-range condition occurs. If these features are not available, drive the vehicle closer to the  
radio system or away from shielding structures and try the call again.  
4. Dial the number using the keypad on the microphone. If the transmitter keys automatically when a number is  
dialed, the PTT switch does not need to be pressed while dialing.  
5. When you finish dialing the number, release the PTT switch if it was pressed.  
With LTR calls, ringing of the other party is then heard. With Multi-Net calls, a short tone sounds to indicate that  
the number was accepted by the system. Then, if it is a telephone call, ringing of the other party occurs (or a busy tone is  
heard if the line is busy). If it is a special call, a second short tone sounds to indicate that speaking should begin. No  
ringing of the other party occurs.  
6. The PTT switch must be pressed to talk and released to listen. You cannot talk and listen at the same time because  
no messages are received while the PTT switch is pressed.  
7. When the conversation is finished, terminate the call by pressing the # key. Place the microphone back on-hook.  
Receiving a Telephone or Special Call  
1. Turn power on and set the volume level if required.  
2. Select the system/group programmed for these calls or enable system scanning by pressing the SCAN switch (if  
available).  
3. When a ringing tone is heard, answer the call in the normal manner (press the PTT switch to talk and release it  
to listen).  
4. When the conversation is finished, terminate the call by pressing the # key. Three beeps indicate that it has been  
terminated. Place the microphone back on-hook.  
Calling a Mobile From a Landside Telephone  
Mobiles can also be called from a landside telephone. With some radio systems, a mobile may have a unique tele-  
phone number so that it can be dialed directly. With others, the number of the radio system is dialed. Then when the  
system answers, a beep sounds and the number specifying the mobile being called is dialed. This number is supplied to  
you by your system operator, and it must be dialed using a tone-type telephone. Depending on the type of call being  
made, a ringing tone then sounds or another beep sounds which indicates that speaking can begin.  
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SYSTEM SCAN  
Introduction  
The system scan feature monitors the programmed systems of the current bank. When a message is detected that  
the transceiver is programmed to receive, scanning stops and the message is received. Shortly after the message is  
complete, scanning resumes.  
System scanning is turned on and off by the SCAN option switch (see page 3). When system scanning is enabled, a  
triangle ( ) is indicated in the display below the switch. The microphone must also be on-hook for scanning to occur  
(unless off- hook detection has been disabled).  
When system scanning is actually occurring, SNGLE SCANor MULTI SCANis indicated in the alphanu-  
meric display (see Multi-Site and Single-Site Scandescription on page 11). In addition, rotating symbols are present  
in both status displays between the system and group numbers.  
Scanning is sequential through the programmed systems unless they have been deleted from the scan list (see  
Scan List Programmingwhich follows) or single-site scan is used. The selected system and group can be changed  
while scanning using the Select switch in the normal manner. Scanning temporarily halts while the change is being  
made.  
When a call is received in the scan mode, the display indicates the system/group of the call. However, this may not  
be where transmissions occur (see Transmitting in the Scan Modeon page 11).  
Scan Resume Delay  
After a message is received or transmitted while scanning, there is a delay before scanning resumes. This delay is  
programmable by your system operator for 0-7 seconds. The delay after a message is received prevents another message  
from being received before a response can be made. The delay after a message is transmitted ensures that you hear a  
response to your message instead of some other message occurring on another system/group.  
There is also a scan continue timer that can be programmed by your system operator. If this timer is used, it sets the  
maximum time that a message is received before scanning resumes. This can prevent scanning from being interrupted  
for long periods by lengthy messages.  
Scan List Programming  
Systems and groups can be added to or deleted from the scan list if the transceiver is equipped with an A/D (add/  
delete) option switch. The bar above the system or group indicates which changes when this switch is pressed. To move  
this bar between the system and group displays, press the Select switch.  
The scan list status of a system or group is indicated by an asterisk ( * ) in the status display. An *next to the  
system number indicates that the displayed system is in the scan list and scanned normally. Likewise, an *next to the  
group number indicates that the displayed group is in the scan list. When scanning is occurring, the scan list status is not  
indicated because the rotating scanning indicators are displayed.  
The displayed system or group can be deleted from the scan list while listening to a message on that system or  
group. Scanning resumes shortly after the system or group is deleted. If the last system or group is deleted from the scan  
list, the last selected group is still scanned.  
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The transceiver can be programmed to either save or not save changes to the scan list when power is turned off.  
This programming is done by your system operator or by the Menu mode SCAN SAVE parameter if it is selectable (see  
page 18). If ONis selected, the changes are saved and the list is the same when power is turned back on. If OFis  
selected, they are not saved and the scan list reverts to the status that existed when ONwas last selected.  
Transmitting In The Scan Mode  
When the transmitter is keyed in the scan mode, programming by your system operator determines the system/  
group on which transmissions occur. If this programming causes the selected system/group to change, it also determines  
what system/group is selected when the scan mode is exited by pressing the Scan switch. The three programmable  
configurations are as follows:  
Last Selected System/Group - Transmissions in the scan mode always occur on the system/group that was last  
selected by the Select switch. To respond to a call not on the selected system/group, the scan mode must be exited by  
pressing the Scan switch. If this is done before scanning resumes, the system/group of the call becomes the selected  
system/group and it does not need to be changed manually.  
Last Received - The selected system/group changes to the system/group of a call. Therefore, you can always  
respond to a call without having to manually change the system/group. This configuration may be programmed if you  
normally respond to calls on various system/groups while scanning.  
Temporary Last Received - The system/group changes to that of a call for the scan delay period described on  
page 23. Then when the delay expires and scanning resumes, the selected system/group is again displayed. Therefore,  
you can respond to a call without changing the selected system/group as long as you do so before scanning resumes.  
With the preceding modes, there is also a programmable bank option (see page 32) to have transmissions occur on  
a preprogrammed fixed system/group if the transmitter is keyed while scanning is occurring. As described on page  
23, scanning is occurring when MULTI SCANor SNGLE SCANand the rotating indicators are displayed.  
Since taking the microphone off-hook normally halts scanning (unless off-hook detection is disabled), the trans-  
mitter may have to be keyed with the microphone on-hook. If the transmitter is keyed while scanning is halted, such as  
to respond to a message, this feature has no affect on operation. If a transmission controlled by this feature occurs, the  
selected system/group changes to the preprogrammed system/group.  
Multi-Site and Single-Site Scan  
The transceiver can perform either Multi-Site or Single-Site scanning. The type of scanning is usually selected by  
your system operator programming, but can also be selected by the Menu mode SCAN SELCTparameter if it is  
available (see page 49).  
As described earlier, the type of scanning is indicated during scanning by SNGLE SCANor MULTI SCANin  
the alphanumeric display. The Multi-Site type scans all system/groups in the current bank unless they are deleted from  
the scan list. This type of scanning is always used if LTR or conventional systems are scanned.  
The Single-Site type scans only Multi-Net systems in the current bank that access the same radio site. This type of  
scanning can be selected with an LTR or conventional system selected only if auto-registration is used (see page 34).  
Auto-registration then occurs and scanning begins on that site. If an LTR or conventional system is selected and auto-  
registration is not used, an error tone sounds and scanning does not occur when the Scan switch is pressed.  
If you must select the type of scanning or if some systems are not scanned, your system operator will provide you  
with additional information.  
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Group Scan  
The Group Scan feature can be programmed on each system by your system operator. Group scanning occurs  
whenever a system programmed for group scan is selected or scanned with the microphone on-hook (there is no switch  
for selecting this feature). Group scanning is indicated when all segments of the status display next to the group number  
are on. However, there is no group scan indicator when system scanning is occurring because rotating symbols appear in  
both locations of the status display. The group scan list can be programmed as described in Scan List Programmingon  
page 8. The operation of group scanning on the different types of systems is described in the next two sections.  
Scanning Multi-Net and LTR Systems  
With group scan, calls are received on all selectable groups of a system, regardless of which is selected. In addi-  
tion, the display automatically changes to the group on which a call is received. Without group scanning, calls are  
received on only the last-selected group. Each Multi-Net or LTR system may also be programmed with fixed and block  
groups on which calls are always received. Refer to Calls on Priority and Block IDson page 14 for more informa-  
tion.  
Scanning Conventional Systems  
As with Multi-Net and LTR systems, calls are detected on all groups of a system with group scan. If group scan is  
not programmed, calls are detected on only the last selected group. Call Guard squelch and other squelch control tech-  
niques are detected when scanning as long as the monitor mode is not enabled (see description on page 11). If the  
monitor mode is enabled, all calls occurring on a system (channel) are received.  
Priority groups can also be sampled when scanning conventional systems. This feature ensures that important calls  
on a priority group are not missed while listening to a call on a non-priority group. Refer to Priority Group Sampling”  
on page 17.  
OPERATING MODES  
Introduction  
Each selectable system can be programmed for Multi-Net, LTR, or conventional operation. The type or types of  
operation that are programmed is determined by the radio equipment that is being used by your system operator. There  
are only a few differences in operation that are of concern to the user. These differences are described in the following  
information and also elsewhere in this manual as required.  
Multi-Net and LTR Operation  
The Multi-Net mode provides the most sophisticated operating features. These features include Busy Queuing,  
Auto-Registration, Status Messages, and the ability to place calls to individual mobiles in your site or some other site.  
Refer to Multi-Net Featuresstarting on page 13 for more information. There are also features unique to LTR opera-  
tion, and they are described starting on page 16.  
Both Multi-Net and LTR operations provide automatic channel selection and monitoring before transmitting. In  
addition, telephone calls can be placed almost as conveniently as with a standard telephone, and special tones and  
display messages indicate busy and out-of-range conditions. Selecting a Multi-Net or LTR group actually selects a  
specific ID code which controls the mobile being called and also what calls are received.  
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Conventional Operation  
With conventional operation, selecting a system actually selects a specific radio channel. Then selecting a group (if  
available) selects the mobile or group of mobiles being called or from which calls are received on that channel. There  
are no tones or display messages to indicate busy or out-of-range conditions. Therefore, a busy channel must be  
detected as described in the next section, and an out-of-range condition may exist if you are unable to get a response  
from the mobile you are calling.  
Conventional Monitoring Before Transmitting  
Before transmitting in the conventional mode, government regulations require that you monitor the channel before  
transmitting to make sure that it is not being used by someone else. If you were to transmit while someone else was  
talking, you would probably disrupt their conversation.  
If the Transmit Disable On Busy feature is programmed (see description on page 16), monitoring is performed  
automatically. If it is not used, monitoring is performed as follows:  
When not system or group scanning, note if BUSYis being displayed. If it is not, the channel is free and a  
message can be sent.  
Enable the monitor mode by taking the microphone off-hook or pressing the MON switch if available. The  
monitor mode is indicated by MONin display, and it disables any programmed squelch control features so that  
all messages are heard. It also halts scanning if applicable.  
If equipped with the CG option switch, both transmit and receive Call Guard squelch or other squelch control  
features can be disabled on the selected group only. The disable mode is indicated by a triangle ( ) in the display  
under the switch.  
The transceiver can also be programmed so that a microphone off-hook condition is not detected. The Transmit  
Disable On Busy feature or MON/CG switches must then be used to perform monitoring.  
GENERAL FEATURES  
NOTE: The following features are available with all three types of operation (Multi-Net, LTR, and conventional).  
Time-Out Timer  
The Time-Out Timer automatically disables the transmitter if it is keyed continuously for longer than the  
programmed time. It is usually programmed by your system operator for 0.5-5 minutes. When this timer times out, the  
transmitter is automatically disabled, the intercept tone sounds, and TX TIMEOUTis displayed.  
Five seconds before time-out occurs, a warning beep sounds. The timer is reset by releasing the PTT switch. One  
use of this feature is to prevent a blocked channel caused by an accidentally keyed transmitter. Another use is to prevent  
possible transmitter damage caused by transmitting for extended periods.  
Call Indicator  
The call indicator is the word CALLin the display. The purpose of this indicator is to show when a call is  
received while you were away from the vehicle. It can be programmed by your system operator to come on only when  
calls are received on specific groups. To turn this indicator off, change any front panel control, take the microphone off-  
hook, press the PTT switch, or turn power off and then on again.  
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Proceed (Clear-To-Talk) Tone  
This is a short tone that sounds when the PTT switch is pressed, and it indicates that the radio system has been  
successfully accessed and speaking can begin. It is standard on LTR and Multi-Net systems and programmable by your  
system operator on conventional systems. This and other tones can also be disabled by  
system operator programming or by the Menu mode RADIO SNDSparameter if it is selectable (see  
page 48).  
With all types of calls on LTR and Multi-Net systems, if the system is busy when the PTT switch is pressed, the  
busy tone sounds and SYSTEM BSYis displayed. If you continue to press the PTT switch, the system is accessed  
when it is available and the proceed tone sounds. If an out-of-range or some other error condition exists, the intercept  
tone sounds and the error condition is displayed.  
If the proceed tone is used on conventional systems, it does not sound if the system is busy. However, it does not  
indicate conventional out-of-range conditions, so it sounds even if that condition exists.  
Horn/Light Alert  
If this feature has been installed by your system operator, it activates an alert such as the vehicle horn or lights  
when calls are received on groups programmed for this feature. When the alert is enabled and the proper call is  
received, it turns on once per second for 3 seconds and then goes back to the disabled state.  
The horn alert on-off mode can be changed by the HORN option switch or HORN/LIGHTmenu parameter (see  
page 43). It is programmed to operate in one of the modes described below. Ignition switch control of power is  
described in Power Turn-Off Delaywhich follows.  
Manual Off/On Mode - The mode does not change when power is turned on and off by either the ignition switch or pow-  
er switch. Therefore, it is entirely controlled by either the option switch or menu parameter.  
Auto Off and On Mode - It always turns off when the  
ignition switch is turned on, and then automatically back on again when the switch is turned off (if there is a turn-off de-  
lay). It also automatically turns off if power is turned on by the power switch. This automatic operation overrides any off-  
on mode that may have been selected by the option switch or menu parameter.  
Bank Select  
Up to ten banks of systems can be programmed. For example, one bank could be programmed for Chicago and  
another for St. Louis. Each bank contains a unique set of systems that may or may not be the same as the systems in  
another bank. Only the systems in the current bank can be selected or scanned.  
To change from one bank to another, the Menu mode BANK SELCTparameter or the BANK option switch is  
used. The Select switch is turned to move to the desired bank and then pressed to select that bank. The current bank is  
identified by the unique identification which momentarily appears in the alphanumeric display. For example,  
CHICAGOor ST LOUIScould be displayed.  
Profile  
Your system operator can program your transceiver with a profile that determines the power-on configuration of  
several operating functions. For example, the transceiver can be programmed so that the backlight and Horn/Light func-  
tion are on and a specific bank is selected.  
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However, if a function is controlled by an option switch or the Menu mode, it returns to the condition that was  
selected by those features. The functions that can be programmed in the profile are as follows. Descriptions of these  
features start on page 18.  
Auto-Registration  
Auxiliary 1 and 2  
Backlight  
Bank Select  
View Angle Adjust  
Encryption  
Scan Type Select  
Priority  
Radio Sounds  
Scan List Save Mode  
LTR System Search  
Talk-Around  
External PA  
Horn/Light  
Telephone Number  
Status  
Emergency Switch  
The emergency option switch is used to set up a high-priority call. If this switch is programmed, it is the switch on  
the left side of the display. An external switch, such as a foot-operated type, may also be used. With Multi-Net systems,  
either manual or automatic operation is available; with LTR and conventional systems, only manual operation is avail-  
able.  
When manual operation is programmed, a specific system/group is selected and the transceiver goes into a high-  
priority access mode. However, no call is placed automatically. This access mode minimizes, as much as possible, the  
chance that the system will be busy when the call is placed.  
When automatic operation is programmed, the transceiver automatically transmits an emergency message on the  
emergency system/group. This message is transmitted at the highest priority until an acknowledgment is received from  
the dispatcher. If you have the emergency switch feature, your system operator will provide additional information on  
how to use it.  
Power Turn-Off Delay  
The transceiver can be programmed so that the vehicle ignition switch as well as the front-panel power switch  
controls transceiver power. In addition, delays of 10 or 30 minutes, or 1, 8, 10, or 12 hours or infinite (no turn-off) can  
be programmed. The delay can be canceled at any time by turning power off using the front-panel switch or turning the  
ignition switch back on.  
A delay allows features such as the horn alert and call indicator to remain active for a time after the vehicle is  
turned off. At the same time, advantages of ignition switch control can be utilized such as preventing battery discharge  
that may occur if the transceiver is accidentally left on for an extended period (see Preventing Battery Dischargeon  
page 26).  
MULTI-NET FEATURES  
Busy Queuing  
The Busy Queuing feature places the call in queue if the system is busy when the PTT switch is pressed. Then  
when the system becomes available, a tone sounds and the call can be placed if desired. This feature is available if it has  
been enabled by programming, and it functions with all types of Multi-Net calls. Busy queuing operates as follows:  
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If the system is busy, the busy tone sounds and the queue mode is entered automatically when the PTT switch is  
released. The busy tone then stops sounding and IN QUEUEis displayed. When the system becomes available, either  
a dial tone or beep sounds. The dial tone sounds if it is a telephone call, and a beep sounds if it is some other type of  
call. The call can then be placed in the normal manner.  
If no call is placed soon after this tone sounds, the queue mode is automatically exited and normal operation  
resumes. The queue mode is also exited if a call is received on the selected group or if the PTT switch or any of the front  
panel switches are activated while no call is being received.  
Calls on other system/groups are received normally while in the queue mode. You can respond to the call and then  
normal queuing of a call resumes shortly after the call is finished. Group scanning continues if it is programmed on the  
system. However, system scanning is temporarily disabled, so calls are not received on other programmed systems.  
Auto-Registration  
Multi-Net sites can be linked together to provide wide area coverage. Auto-registration may then be used to track  
the location of mobiles so that calls can be automatically routed to the correct site. To have this feature, it must have  
been programmed by your system operator and system scanning must be enabled by the SCAN switch. In addition, if  
the Menu mode MN AUTOREGparameter is selectable, auto-registration must be enabled by that feature.  
Auto-registration operates as follows: When you move out of range of the current site, the transceiver automati-  
cally begins searching for another site. While it is searching, AUTO REGand the scan message are alternately  
displayed. When a new site is located, AUTO REGis no longer displayed and the display changes to the system of  
the new site.  
The new system that is selected is the first higher system with a different site that could be accessed (wrap-around  
occurs after the highest system is accessed). The group that is displayed is determined by transceiver programming. It is  
either the same group that was displayed before registration occurred, or the group that was displayed when the new  
system was last selected.  
Status Messages  
Status messages can be automatically transmitted to your dispatcher if that feature has been programmed by your  
system operator. A message is transmitted each time the PTT switch is pressed with a Multi-Net system selected.  
The STAT option switch or Menu mode STATUSparameter (see page 14) are used to momentarily display and  
change the current message. In this mode, the Select switch is rotated to display the desired message and then pressed to  
select the message. One of up to eight status messages can be selected such as AT SITE, LEVNG SITE, or  
UNLOADING.  
Calls on Priority and Block ID Codes  
If your transceiver is programmed with Multi- Net or LTR systems, fixed priority and/or block ID codes may be  
programmed in addition to ID codes for the selectable groups. Calls on these ID codes are always received regardless of  
which group is selected or Group Scan programming (as long as the system with the codes is selected or scanned).  
Calls on fixed priority ID codes and also certain Multi-Net special calls may have a higher priority than a call  
being received. If a call with a higher priority is detected, the current call is immediately dropped (if one is being  
received) and the transceiver switches to the higher priority call.  
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When a call on a priority ID is received, the ID codes of the selectable groups are checked to see if any are the  
same. If one is the same, the transceiver switches to that group. If none are the same, the group number does not change  
and PRIORITY 1" (or 2) is displayed. When a call on a block ID is received, BLOCK CALLis displayed and the  
group number does not change.  
Transmit Inhibit  
The Transmit Inhibit feature can be programmed on Multi-Net and LTR systems by your system operator. This  
feature prevents the transmitter from keying if the mobile you are calling is busy with another call. When the transmitter  
is disabled by this feature, the intercept tone sounds and TX INHIBis displayed. To make another call attempt, the  
PTT switch must be released and then pressed again. However, you may want to wait a few seconds because an internal  
timer must count down before the attempt will be successful.  
One use of this feature is to prevent the accidental interruption of a call in progress. It may also be used to provide  
an audible indication that the mobile you are calling is busy. A similar Transmit Disable On Busy feature is available on  
conventional systems (see page 16).  
Telephone Mode  
If the PHONE option key or the TELEPHONE menu parameter is available (see page 18), the Phone Mode can be  
selected to make placing telephone calls more convenient. It is also used to select telephone system/groups and dial  
preprogrammed telephone numbers. Proceed as follows to use the Phone Mode:  
1. Press the PHONE switch or select the TELEPHONE menu parameter. This displays the first telephone system/  
group in the current bank. If none are programmed, NO RICis displayed. The status display indicates PH”  
until a system/group is selected.  
2. To scroll through the available telephone system/groups, turn the Select switch. Telephone system/groups are  
indicated by the handset symbol in the display. When the desired system/ group is displayed, select it by pressing  
the Select switch.  
3. The alphanumeric display then indicates SELECT NBR. If you wish to manually dial the telephone number  
using the keypad on the microphone, momentarily press the PTT switch to obtain a dial tone and then dial the  
number. Proceed to step g.  
4. If you wish to recall a prestored number, rotate the Select switch to scroll through the programmed numbers. The  
unique identification programmed for each number is indicated in the alphanumeric display. Therefore, the actual  
telephone number being recalled may not be displayed.  
5. When the desired number is displayed, select that number by pressing the Select switch.  
6. To transmit the displayed number, momentarily press the PTT switch to obtain a dial tone and then momentarily  
press the PTT switch again to transmit the number.  
7. To terminate the call by sending the # character and exit the Phone Mode, press the PHONE switch or press the  
MENU switch if using the Menu Mode. The transceiver then returns to the system/group that was selected before  
the Phone Mode was entered.  
There is also a timer that is active in the phone mode until the number is transmitted. This timer causes the Phone  
Mode to be automatically exited if no activity is detected for 10 seconds.  
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LTR MODE FEATURES  
Free System Ringback  
If a busy condition exists when making an LTR telephone call, the Free System Ringback feature automatically  
signals when the system is available. It operates as follows:  
When the PTT switch is released, the busy tone stops sounding and RING BACKis indicated in the display.  
Then when the system becomes available, a dial tone is heard and the number can be dialed. If dialing is not started  
within a few seconds, normal operation resumes. This feature is always available (special programming is not required),  
and it functions on telephone calls only.  
System Search  
If an out-of-range condition exists when making LTR telephone calls, the System Search feature automatically  
searches for another system that is within range. This feature is available only if it has been enabled by system operator  
programming or by the Menu mode LTR SEARCHparameter (see page 18). It operates as follows:  
If an out-of-range condition occurs when the PTT switch is pressed, several access attempts are made. If none are  
successful, an intercept tone sounds and OUT-OF-RNGis displayed. When the PTT switch is released, the intercept  
tone stops sounding and SYS SEARCHis displayed.  
The transceiver then attempts to access other programmed systems in the current bank that have a group  
programmed for telephone calls. A beep sounds as each access is attempted, and each eligible system is checked once.  
If no system can be accessed, an intercept tone sounds and the feature deactivates. If a system is accessed, that system  
and the telephone group are displayed and a dial tone sounds. The number can then be dialed. If dialing is not started  
within a few seconds, normal operation resumes.  
Other LTR Features  
Priority and Block ID Codes, the Transmit Inhibit feature, and the Telephone mode are available with LTR as well  
as Multi-Net operation. Since they operate the same in both modes, the Multi- Net description also applies to LTR oper-  
ation. Refer to pages 14 and 15 for descriptions of these features.  
CONVENTIONAL MODE FEATURES  
Transmit Disable On Busy  
This feature automatically disables the transmitter if the system (channel) is busy when the PTT switch is pressed  
(BUSYindicated in display). It can be enabled or disabled on each conventional group by system operator program-  
ming.  
When the transmitter is disabled by this feature, the busy tone sounds and TX DIS BSYis displayed. It is not  
possible to access the system by holding down the PTT switch until the system is no longer busy. If this feature is not  
used, the transmitter keys even if the channel is busy, so the channel must be monitored as described in Conventional  
Monitoring Before Transmittingon page 11.  
This feature may occasionally disable the transmitter even though monitoring indicates that no one is using the  
channel. To key the transmitter in this situation, the PTT switch can be released and then pressed again within 1 second.  
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Call Guard Squelch Control  
The Call Guard Squelch feature eliminates distracting messages intended for others on conventional systems. This  
is done by using a subaudible tone or digital code to control the transceiver squelch. This tone or code is unique to a  
mobile or group of mobiles on that system. The transceiver does not unsquelch unless the correct tone or code is  
detected.  
LTR and Multi-Net systems utilize ID codes to perform a similar function. Other types of tone decoders may also  
be used to control the squelch. If you have one of these, your system operator will provide you with additional informa-  
tion.  
Monitor Mode  
The monitor mode allows all activity on a channel to be monitored when Call Guard squelch or other types of  
decoders are used to control the squelch. The monitor mode disables these features so that all messages are heard. To  
select the monitor mode, take the microphone off-hook or press the MON switch if available.  
The monitor mode is indicated by MONin the display. If scanning is enabled, the MON switch is not detected  
and monitoring occurs only when the microphone is taken off-hook when the revert (selected) system is a conventional  
system. The transceiver may also be programmed so that off- hook detection is disabled. The MON switch or the  
Transmit Disable On Busy feature must then be used to enable monitoring.  
Repeater Talk-Around  
Normally, all transmissions go through a repeater. A repeater is a special radio which receives and then retransmits  
your message at a higher power level to increase range. There may be times when you are out of range of the repeater  
system. You are then unable to talk to anyone, even though the mobile you are calling may be only a short distance  
away.  
In this situation, the Repeater Talk-Around feature, if available, can be used to allow direct communication with  
the mobile without having to go through a repeater. To select this feature, simply select a group programmed for talk-  
around by your system operator. The unique identification may be used to indicate which groups are programmed for  
talk-around.  
Your transceiver may also have the Talk- Around Select feature that allows you to manually turn talk-around on  
and off. This feature is provided by the TA option switch or the Menu mode TALKAROUNDparameter (see page  
17). When talk-around is enabled by the menu parameter, ONis indicated in the status display. When the switch is  
used, a triangle appears under the switch if talk-around is enabled by the switch or if it is enabled on the selected group  
by dealer programming. Changing the system or group causes talk- around to revert to the dealer programmed condi-  
tion. Each conventional system can be programmed so that manual selection of talk-around is disabled.  
Priority Group Sampling  
Priority group sampling ensures that messages on priority system/groups are not missed while listening to  
messages on other system/groups. Both a first and second priority system/group can be designated in each bank of  
systems by system operator programming. When a priority message is received, either P1 or P2 is indicated in the status  
display.  
Priority group sampling occurs only when system scanning is enabled. In addition, it must be the Multi-Sitetype  
as described on page 11. The first priority system/group is sampled while listening to a message on the second priority  
group but not vice versa. The transceiver can be programmed so that the first priority group is sampled every 0.5, 1, or 2  
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seconds or not at all. When a priority system/group is sampled while listening to a message on some other system/  
group, a series of ticksare heard. These ticks are brief interruptions of the audio signal that occur when sampling  
takes place.  
This feature is available only on conventional systems. In addition, sampling does not occur while listening to an  
LTR or Multi-Net call or when transmitting any type of call. If the PRI option switch or Menu mode PRIORITY”  
parameter is available (see page 18), priority sampling can be turned on and off.  
Receive-Only Groups  
Conventional systems can be programmed so that transmitting is disabled (monitoring only is permitted). If the  
PTT switch is pressed with one of these systems selected, the intercept tone sounds and TX DISABLEis displayed.  
MENU MODE AND OPTION SWITCHES  
Using Menu Mode  
If the transceiver is equipped with a MENU option switch (see next section), the Menu mode can be selected to  
select various transceiver functions. The functions selectable in the Menu mode are indicated by an Xin Menu”  
column of the table on page 19.  
NOTE: You probably will not be able to select all the functions in this table because some may be controlled by an  
option switch or they may not apply so have been removed from the menu by system operator programming.  
To change an operating parameter using the Menu mode, proceed as follows:  
1. To select the Menu mode, press the MENU switch.  
2. To select the desired parameter, turn the front panel Select switch until it is displayed.  
3. If the parameter has only on/off choices, the current status is shown as ONor OFin the status display  
(between the system and group numbers). To change the status, press the Select switch.  
4. If the parameter has several choices, the current status is displayed by pressing the Select switch. Then to change  
the status, rotate the switch.  
5. The Menu mode is exited and the choices selected in the following ways:  
Pressing the MENU switch  
Automatically 2 seconds after changing a parameter or 10 seconds after no activity.  
If a call is received or transmitted while in the menu mode, the Menu mode is exited and any changes are saved.  
The parameters programmed in the Menu mode are described in the information which follows.  
Option Switches  
This transceiver can be equipped with up to six option switches as described on page 3. The function of each  
switch is indicated by a label on the switch. The functions which can be controlled by these switches are indicated in the  
table on page 19. A description of each of these functions follows.  
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NOTE: The following features may be controlled by an option switch or a Menu mode parameter or both as indi-  
cated in the table on the next page.  
A/D (Scan List Programming)  
This switch is used to add or delete systems and groups from the scan list. Pressing this switch changes the status  
of the displayed system or group that has a bar above it. This bar is moved between the system and group display by  
pressing the Select switch. An asterisk (*) in the status display next to the system or group number indicates that it is in  
the scan list. Refer to Scan List Programmingon page 8 for more information.  
Auto-Registration  
This Menu mode feature is indicated by MN AUTOREGand is used to turn Multi-Net auto- registration on and  
off. Refer to description on page 14 for more information.  
Auxiliary 1/Auxiliary 2  
Up to two auxiliary functions defined by your system operator can be turned on and off. The Menu mode AUX 1"  
and AUX 2" parameters or the AUX 1 and AUX 2 option switches can be used. With a switch, the on condition is indi-  
cated by a triangle in the display under the switch.  
MENU MODE PARAMETERS AND OPTION SWITCHES  
MENU OPTION SWITCH  
ITEM SWITCH LABEL  
MENU OPTION SWITCH  
ITEM SWITCH LABEL  
FUNCTION  
FUNCTION  
A/D (Scn List Prg)  
Auto-Registration  
Auxiliary 1  
X
A/D  
LTR System Search  
Menu Mode Select  
Monitor  
X
X
X
X
X
X
X
X
X
X
MENU  
MON  
PHONE  
PRI  
X
X
X
X
X
X
X
X
X
X
X
AUX 1  
AUX 2  
BKLHT  
BANK  
CG  
Auxiliary 2  
Phone Mode Select  
Priority  
X
X
X
Backlight  
Bank Select  
Radio Tones  
Call Guard Disable  
Emergency  
Scan On/Off  
X
SCAN  
EMER  
ENCPT  
PA-MC  
PA-RX  
HOME  
HORN  
Scan List Save  
Scan Type  
X
X
Encryption  
X
X
X
Ext PA (Mic audio)  
Ext PA (Rx audio)  
Home Sys/Grp  
Horn/Light Alert  
Siren (see Aux 1/2)  
Status Select  
X
X
X
SIREN  
STAT  
TA  
X
X
X
Talk-Around  
X
Viewing Angle Adj  
Backlight  
The Menu mode Backlightparameter or the BKLHT option switch can be used to turn the display backlight on  
and off. This light allows the display and option keys to be seen in low-light conditions. If it cannot be controlled using  
either of these methods, it is usually programmed so that it always turns on with transceiver power.  
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Bank Select  
If banks of systems have been programmed, the Menu mode BANK SELCTor BANK option switch select the  
bank in which the transceiver is currently operating. When the bank select mode is enabled, the Select switch is used to  
change the current bank. Refer to the Bank Selectdescription on page 12 for more information.  
Call Guard Squelch Disable  
The CG option switch disables Call Guard squelch. Refer to page 11 for more information.  
Emergency  
This switch is typically the switch to the left of the display. It is pressed to set up a high priority call. Refer to page  
13 for more information.  
Encryption  
Optional voice encryption provides protection from casual eavesdropping and analog scanners because the voice is  
changed so that it can be understood only by a mobile equipped with a similar encryption device. Each group can be  
individually programmed for encryption so that when the group is selected or scanned, encryption is automatically  
enabled or disabled.  
Encryption can also be manually enabled or disabled by the ENCPT option switch or the Menu mode ENCRYP-  
TIONparameter. Encryption is enabled on the displayed group when the circle/triangle symbol is displayed (see page  
4).  
Selecting another system/group causes this feature to revert to the state programmed by your system operator for  
that group. Encrypted calls are usually received even if encryption is not enabled on a group. However, encryption must  
always be enabled to transmit an encrypted call.  
External PA (Mic Audio To PA)  
If your vehicle is equipped with a public address system, this feature allows the transceiver microphone to be used  
to speak over that system. The PA-MC option switch or EXTERNL PAMenu parameter turn this feature on and off.  
When this feature is active, the alphanumeric display indicates MIC TO PAand the transmitter is disabled.  
External PA (Receive Audio To PA)  
If your vehicle is equipped with a public address system, this feature allows the receive audio signal to be routed to  
this system as well as to the regular speaker. The PA-RX option switch or EXTERNL PAMenu parameter can be  
used to turn this feature on and off. When this feature is active, the alphanumeric display indicates RCV AUD PA.  
Home System/Group  
Each bank can be programmed with a homesystem/group that can be selected by pressing the HOME option  
switch. If in the scan mode, this system/group is displayed for the length of the receive scan delay and then scanning  
resumes.  
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Horn/Light Alert  
An external alert such as the vehicles horn or lights can be used to signal a call. The HORN option switch or  
HORN/LIGHTMenu mode parameter can be used to turn this alert on or off. The on condition of the option switch is  
indicated by a triangle in the display under the switch. Refer to the Horn/Light Alertdescription on page 14 for more  
information.  
LTR System Search  
The LTR SEARCHmenu parameter enables or disables the LTR system search feature (described on page 16). If  
it is enabled, the transceiver automatically searches for a free system whenever a busy condition occurs when making an  
LTR telephone call.  
Menu Select  
The MENU option switch selects the Menu mode described on page 18.  
Monitor Mode Select  
The MON option switch can be used to select the monitor mode as described on page 11.  
Priority  
If priority group sampling has been programmed on conventional systems by your system operator, the PRI option  
switch or the PRIORITYMenu mode parameter can be used to enable or disable that feature. Refer to Priority  
Group Samplingon page 17 for more information.  
Radio Sounds  
The RADIO SNDSmenu parameter selects the tones that are heard when switches are pressed or busy or out-of-  
range conditions exist. If this menu parameter is not available, the tones which sound are fixed by system operator  
programming. The four available conditions are listed below.  
Silent - No tones at all sound.  
Key Beeps - Only the Option and Select switch beeps sound.  
Alert Tones Only - The proceed, busy, and intercept tones sound, but not the key beeps.  
All - All tones sound.  
Scan On/Off  
The SCAN option switch can be used to turn the system scan feature described on page 8 on and off. The on condi-  
tion is indicated by a triangle in the display under the switch. If you do not have this switch, scanning is not available.  
Scan List Save  
The SCAN SAVEmenu parameter selects whether or not your changes to the scan list are saved when power is  
turned off. If ONis selected they are saved, and if OFis programmed they are not saved. Refer to Scan List  
Programmingon page 8 for more information.  
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Scan Type  
The SCAN SELCTmenu parameter selects the type of system scanning that occurs when it is enabled by the  
SCAN switch. Either MULTI- SITEor SNGLE-SITEcan be selected. The multi-site type scans all system/groups  
in the current bank and scan list, and the single-site type scans only Multi-Net systems that are programmed with the  
same site. The type of scanning is indicated in the alphanumeric display. Refer to Multi-Site and Single-Site Scanon  
page 11 for more information.  
Siren/Light Bar  
The SIREN option switch turns the siren and lights of public safety vehicles on and off (if an appropriate interface  
box has been installed by your system operator). The on condition is indicated by a triangle in the display under the  
switch.  
Status Select  
The STAT option switch or STATUSmenu parameter is used to select the status message that is being trans-  
mitted each time the transmitter is keyed. Up to eight status messages may be programmed by your system operator.  
The Select switch is rotated to display the messages and then pressed to select the desired message. Refer to Status  
Messagesdescription on page 14 for more information.  
Talk-Around  
The TA option switch or TALKAROUNDmenu parameter is used to manually turn talk- around on and off on  
conventional systems. Refer to Repeater Talk-Aroundon page 17 for more information.  
Viewing Angle Adjust  
The VIEW ADJSTmenu parameter sets the viewing angle of the display. This provides optimal intensity at the  
viewing angle being used. Viewing angles represented by 0-15 can be selected. 0selects -45° and 15selects +45°.  
Note that when toggling from 15to 0, the display may appear to indicate all 8's. However, the correct information is  
actually being displayed when it is viewed from the selected angle of -45°.  
MISCELLANEOUS  
Supervisory Tones  
NOTE: The following tones are heard at various times when operating this transceiver. They are heard only in the  
LTR or Multi-Net mode unless noted otherwise.  
Busy Tone - This tone is similar to the standard telephone busy tone and it indicates that the radio system is currently  
busy. It sounds when making all types of Multi-Net and LTR calls and also when Multi-Net Busy Queuing is pro-  
grammed. The display also indicates SYSTEM BSYwhen this condition occurs.  
Intercept Tone - This is a siren-like tone (alternating high and low tones) which indicates the following error condi-  
tions:  
If this tone sounds after the transmit indicator flashes several times and OUT-OF-RNGappears in the display,  
an out-of-range condition is indicated. To complete a call, you may need to drive closer to your radio system or  
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away from shielding structures. Once this tone sounds, no more access attempts are made until the push-to-talk  
switch is released and then pressed again.  
If this tone sounds after the transmitter has been on for an extended period and TX TIMEOUTappears in the  
display, the transmitter has been disabled by the Time-Out Timer feature (see page 14).  
If this tone sounds as soon as the PTT switch is pressed with a conventional system selected and TX DIS BSY”  
is displayed, the transmitter was disabled by the Transmit Disable On Busy feature (see page 16). This indication  
also occurs if the push-to-talk switch is pressed while receiving an LTR call.  
If this tone sounds as soon as the push-to-talk switch is pressed and TX DISABLEappears in the display, a  
channel is selected in the conventional mode that is programmed as receive-only (see page 18).  
Proceed (Clear-To-Talk) Tone - This is a short tone which sounds when the push-to-talk switch is pressed. It indi-  
cates that the system has been successfully accessed and speaking can begin. It is always enabled on LTR and Multi-  
Net systems and can be programmed on conventional systems. Refer to description on page 14 for more information.  
Key Press Tone - This is a short tone that sounds when an option switch is pressed or the Select switch is changed.  
This tone can be disabled by system operator programming or by the Menu mode RADIO SNDSparameter (see  
page 21).  
MULTI-NET TELEPHONE CALL TONES  
Confirmation Tone - This is a short tone that sounds when the number just dialed is accepted by the system.  
Call Proceed Tone - With Multi-Net special calls other than telephone calls, ringing does not occur after the number  
is dialed. Instead, another short tone sounds after the confirmation tone to indicate that the audio path is complete  
and speaking can begin.  
End Call Tone - Three beeps which indicate that the end of the call has been detected by the system.  
Proceed Dialing Tone - When placing a landside- to-mobile call (refer to page 7), the landside caller may enter a  
special number which specifies the mobile being called. This tone indicates when that number should be dialed.  
LTR TELEPHONE CALL TONES  
Free System Ringback Tones - In the Free System Ringback mode (see page 16), a ringing tone sounds when the  
system is no longer busy.  
Reorder Tone - Three beeps which indicate that the call has been terminated by the system.  
Return Time Warning Tone - Two beeps which warn that you have not transmitted for an extended period during the  
call. If you do not transmit within 5 seconds, the call is automatically terminated by the system. The time between  
transmissions is one of the parameters used to detect the end of a call when the # character is not sent.  
Conversation Time-Out Tone - Calls are limited to a certain length by the system. Thirty seconds before this time is  
reached, a tickbegins sounding each second. After 30 seconds, the call is automatically terminated by the system.  
Turn-Around Tone - This is a single beep which may be used to indicate to the landside party when to respond to  
your transmission. It sounds when you release the PTT switch, and you may partially hear this tone.  
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Proceed Tone - This tone consists of two beeps and it tells the landside caller when to enter the five-digit number  
specifying the mobile being called. Dialing of this number must be started within 5 seconds of hearing this tone, and  
a tone-type telephone must be used.  
Display Messages  
The following messages may appear in the ten-character alphanumeric display.  
ALL CALL - Indicates that the Multi-Net All Callspecial call is being received. This is a high- priority call to all  
mobiles assigned to a site. If another call is being received, it is dropped to receive this call.  
AUTO REG - Indicates that the transceiver is attempting to register on another system. Refer to Auto-Registration”  
description on page 14.  
BLOCK CALL - Indicates that the call is being received on a Multi-Net or LTR block ID code (see description on  
page 14).  
EMERGENCY - Indicates that the emergency switch has been pressed (see page 13).  
GPSCN DSBL - Indicates that an attempt was made to delete a group from the scan list with group scanning dis-  
abled.  
HI BATTERY - The transceiver senses the battery voltage and if it rises to a point where transceiver damage may  
result, this message is displayed and the intercept tone sounds. If this message persists, contact your dealer or have  
the vehicle's electrical system checked.  
IN QUEUE - Indicates that the call has been placed in a queue by the Multi-Net Busy Queuing feature (see page 13).  
MIC TO PA - Indicates that the microphone audio has been routed to a public address system (see Mic Audio to  
PAdescription on page 20).  
MULTI SCAN - Indicates that the Multiple-Site type of scanning is occurring (see page 11).  
NO DAT GRP - Indicates that no valid data group could be found for a data transmission.  
NO NUMBERS - Indicates that the Phone mode is selected and no telephone numbers have been preprogrammed  
(see page 15).  
NO RIC FND - Indicates that no telephone system/group could be found in the Phone mode (see page 15).  
NO TALK - Indicates that talk-around has been disabled on the selected system by dealer programming (see Re-  
peater Talk-Aroundon page 17).  
NOT MULTI - Indicates that an attempt was made to enable a Multi-Net feature on an LTR or conventional system.  
NOT ON CNV - Indicates that an attempt was made to enable a conventional mode feature on a Multi-Net or LTR  
system.  
OUT-OF-LOK - Indicates that the synthesizer is out-of-lock. Refer to Transceiver Servicingon page 26.  
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OUT-OF-RNG - Indicates an out-of-range condition. Refer to the Intercept Tonedescription on page 22 for more  
information.  
PRIORITY 1 or 2 - Indicates that a Multi-Net or LTR priority call is being received (see Calls on Priority and Block  
ID Codeson page 14).  
PROG ERROR - Indicates a memory read error. Refer to Transceiver Servicingon page 26.  
RCV AUD PA - Indicates that the receive audio has been routed to a public address system (see Receive Audio to  
PAdescription on page 20).  
RING BACK - Indicates that the LTR Free System Ringback mode has been entered (see page 16).  
SELECT NBR - Displayed in the Phone mode to indicate that a preprogrammed telephone number should be select-  
ed or a number should be dialed manually (see page 15).  
SNGLE SCAN - Indicates that the Single-Site type of scanning is occurring (see page 11).  
SUMMIT 8 or 9 V 2xx X - This message is displayed for an instant when transceiver power is turned on. SUM-  
MITis the model of the transceiver, 8indicates that it is an 800 MHz version, and 9indicates that it is a 900  
MHz version. The number after the Videntifies the version of software that is being used, and the last number  
indicates the tier level of the transceiver.  
SYS SEARCH - Indicates that the LTR System Search mode has been entered (refer to page 16).  
SYSTEM BSY - This along with a busy tone indicates that the radio system is currently busy (see Busy Tonede-  
scription on page 22).  
TX DISABLE - Indicates that the selected conventional system is programmed for monitoring only (see page 18).  
TX DIS BSY - Indicates that the transmitter is disabled by the Transmit Disable On Busy feature (see page 16). This  
message also indicates that the transmitter has been keyed while receiving an LTR message. Wait until the message  
is finished to key the transmitter.  
TX INHIBIT - Indicates that the transmitter has been disabled by the LTR/Multi-Net Transmit Inhibit feature (refer  
to page 15).  
TX TIMEOUT - Indicates that the transmitter has been disabled by the Time-Out Timer (refer to page 14).  
RMT ERROR - Indicates that an incompatible remote control unit is connected.  
Speaking Into The Microphone  
For best results, hold the microphone about 1-2 inches away from your mouth and speak slowly and distinctly at a  
normal conversational level. Do not shout into the microphone since it distorts your voice and does not increase range.  
Make sure the push-to-talk switch is pressed before you begin to speak and released as soon as the message is complete.  
Operation At Extended Range  
When approaching the limits of radio range, others may not always hear your transmissions and there may be an  
increase in background noise when messages are received. Communication may be improved by driving the vehicle to  
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higher ground or away from shielding structures such as tall buildings and hills. Changing the direction of the vehicle  
may also improve signal quality.  
Preventing Battery Discharge  
In the standby mode (power on, receiver squelched), transceiver power consumption is relatively low. Therefore,  
the transceiver can be left on for one or two days without operating the vehicle and the battery should not become seri-  
ously discharged. However, if the outdoor temperature is low enough to significantly decrease battery capacity, the  
transceiver power should be turned off when the transceiver is not in use.  
Since power consumption is significantly higher when transmitting, it is good practice to have the vehicle running  
while transmitting. This ensures that there is sufficient power to the transceiver and that the charge of the battery is  
maintained.  
Transceiver Servicing  
If the transceiver is not operating properly, turn the power off and then on again to reset the control logic. Also  
make sure that the front-panel controls are properly set and that the antenna, external speaker (if used), and power  
cables are securely plugged into the back of the transceiver. If the transceiver still does not operate properly, contact  
your dealer for service.  
NOTE: There are no user-serviceable components in this transceiver. Altering internal adjustments can void the  
warranty and cause illegal emissions, and result in improper operation that can seriously damage the transceiver.  
Part No. 002-9750-003  
1-95hph  
Printed in U.S.A.  
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