Ericsson TMX-8825 User manual

LBI-38388C
Operator’s Manual
TMX-8825 (25 Watt)
ΤΜX- 8810 (10 Watt)
ERICSSONZ

Copyright© November 1989, General Electric Company
TABLE OF CONTENTS Page
OPERATING PROCEDURES . . . . . . . . . . . . . . . . . 3
CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DISPLAY INDICATORS . . . . . . . . . . . . . . . . . . . 6
AUDIBLE INDICATORS . . . . . . . . . . . . . . . . . . . 8
BASIC OPERATION . . . . . . . . . . . . . . . . . . . . . 9
Turning The Radio On . . . . . . . . . . . . . . . . . . 9
Turning The Radio Off . . . . . . . . . . . . . . . . . . 10
Placing A Dispatch Call (Trunked Mode) . . . . . . . . . 10
Ending A Call (Trunked Mode) . . . . . . . . . . . . . . 11
Receiving ACall (Trunked Mode) . . . . . . . . . . . . 11
Direct Mode Operation . . . . . . . . . . . . . . . . . . 12
Conventional Mode Operation . . . . . . . . . . . . . . 12
PLACING ATELEPHONE INTERCONNECT CALL . . . . 12
HORN ALERT OPTION . . . . . . . . . . . . . . . . . . . . 14
SAFETY INFORMATION . . . . . . . . . . . . . . . . . . 15
Repairs to this equipment should be made only by an authorized
service technician or facility designated by the supplier. Any re-
pairs, alterations or substitution of recommended parts made bythe
userto thisequipment notapprovedbythe manufacturercouldvoid
the user’s authority to operate the equipment in addition to the
manufacturer’s warranty.
NOTICE
This manual covers Ericsson and General Electric products manufac-
tured and sold by Ericsson Inc.
NOTICE
This manual is published by Ericsson Inc., without any warranty. Improvements and
changes to this manual necessitated by typographical errors, inaccuracies of current
information, or improvements to programs and/or equipment, may be made byEricsson
Inc., at any time and without notice. Such changes will be incorporated into new editions
of this manual. No part of this manual may be reproduced or transmitted in any form or
by any means, electronic or mechanical, including photocopying and recording, for any
purpose, without the express written permission of Ericsson Inc.
2

OPERATING PROCEDURES
Two-way FM radio systems must be operated in accordance with the
rules and regulations of the Federal Communications Commission (FCC).
As an operator of two-way radio equipment, you must be thoroughly
familiar with the rules that apply to your particular type of radio operation.
Following these rules will help to eliminate confusion, assure the most
efficient useofexisting radiochannels,andresultinasmoothlyfunctioning
radio network.
When using your two-way radio remember these rules:
1. It’s a violation of FCC rules to interrupt any distress or emergency
message. And, as your radio operates in much the same way as a
telephone "party line", always listen to make sure that the line is
clear-that no one else is on the air-before sending messages. If
someone is sending an emergency message-such as reporting a fire,
oraskingforhelp inan accident-KEEPOFFTHEAIR! Emergency
calls have priority over all messages.
2. Use of profane or obscene language is prohibited by Federal law.
3. It is against the law to send false call letters, or a false distress or
emergency message.
4. The FCC requires that you keep conversations brief and confine
them to business. To save time, use coded messages whenever
possible.
5. Using your radio to send personal messages (except in an emer-
gency) is a violation of FCC rules. You may send only those
messages that are essential for the operation of your business.
6. It is against the Federal law to repeat or otherwise make known
anything you overhear on your radio. Conversations between others
sharing your channel must be regarded as confidential.
7. The FCC also requires that you identify yourself at certain specific
times by means of your call letters. Refer to the rules that apply to
your particular type of operation for the proper procedure.
8. No changes or adjustments shall be made to the equipment except
by an authorized or certified electronic technician.
TheGE-MARCsystem is already automatically identifiedanddoes
not require identifying yourself.
NOTE
3

Controls
4

CONTROLS
POWER Momentary switch. Press once to turn on the
radio. Push again to turn off the radio. The
radio will sound three beeps and the display
will show PASSED followed by the
area/group last selected.
VOLUME Two momentary switches. VOLUME UP
and VOLUME DOWN. Beeps are heard
while stepping the volume on an inactive
channel. No beeps are heard while receiving
a channel.
AREA Two momentary switches. Push AREA UP
to increment to the next higher programmed
area. Push AREA DOWN to decrement to
the next lower area.
GROUP/SEL
(GROUP/SELECT) Two momentary switches. Increment or decrement groups, channels, or
menu selections.
TRUNKED MODE: Increments or decre-
ments the group. Inoperative in areas dedi-
cated to direct mode GE-MARC channels.
NOTE: The SPECIAL CALL function will
not be selected when stepping through the
groups. Press MENU and then simultane-
ously press GROUPUP to select SPECIAL
CALL.
CONVENTIONAL MODE: Increments or
decrements the conventional channels (up to
9 channels).
MENU OPERATION: Increments or decre-
ments menu selections for the ALARM and
PHONE menu features.
CLR/MON
(CLEAR/MONITOR) Momentary switch.
TRUNKED MODE: Terminates a call.
DIRECT AND CONVENTIONAL
MODES: Unsquelches the receiver to moni-
tor any activity on the selected channel.
5

MENU OPERATION: Exits the menu when
using the PHONE or ALARM options. Re-
sets the display to the current area/group.
MENU Momentary switch. Accesses the menu fea-
tures (PHONE and ALARM). Press MENU
again to toggle between PHONE and
ALARM. Press CLR/MON to exit the
menu mode and return the display to the
current area/group.
PHONE: Allows selecting up to 10 prepro-
grammed telephone numbers. Press
GROUP UP or GROUP DOWN to step
through the numbers.
ALARM:IftheHornAlertOptionispresent,
press GROUP UP or GROUP DOWN to
toggle between Yes or No.
SHIFT KEY FUNCTIONS
MENU/GROUPUP Momentary switches. Selects the special call
function for the area in the display (tninked
mode only). Press MENU and then
GROUPUPsimultaneously.(MENUis act-
ing as a "shift" key.)
MENU/VOLUME UP Momentaryswitches.Immediatelyplacesre-
ceiver volume at maximum. Press MENU
and then VOLUME UP simultaneously.
MENU/VOLUME DOWN Momentaryswitches.Immediately placesre-
ceiver volume at minimum. Press MENU
and then VOLUME DOWN simultane-
ously.
DISPLAY INDICATORS
A Liquid Crystal Display (LCD) provides the operational status of the
radio.The display contains TX and BSYindicators and eightalphanumeric
characters.
6

TX
(TRANSMIT) ON: Indicates the microphone Push-to-Talk (PTT) is pushed.
FLASHING: Indicates attempting to acquire achan-
nel in trunked mode.
BSY
(BUSY) Trunked Mode:
FLASHING:Indicatesradioisautomatically
retrying to acquire a channel while system is
busy. (Radio must be preprogrammed for
call retry option.
ON: Indicates out-of-range of the GE-
MARC system.
Conventional Mode:
ON: Indicates the channel is busy.
DISPLAY
CHARACTERS Eight alphanumeric characters. Up to 4 characters may be used for the area name followed by 4 char-
acters for the group name.
Display Indicators
7

AUDIBLE INDICATORS
SELF CHECK TEST ALERT
Threebeeps aresounded asecondafter the radiois turned on toindicate
that the radio has passed the self diagnostic test. The display will also show
PASSED for one second.
CALL RECEIVED ALERT (Trunked mode only)
Ashort, high frequency tone is sounded when you receive a group call.
Atwo tone alert is sounded when receiving an individual call. NOTE: The
radio can be preprogrammed to mute the Call Received Alert Tones.
CALL ORIGINATE ALERT (Trunked mode only)
A three tone alert is sounded after originating a trunked call. The alert
indicates a channel was acquired and is ready for normal conversation.
SYSTEM BUSY (Trunked mode only)
A low frequency tone is sounded for one second after attempting to
placea trunked call. The display also showsWAIT momentarily. This tone
indicates the GE-MARC systemis busyand youshould try again later (the
call retry option will try again automatically if preprogrammed).
OUT OF RANGE ALERT (Trunked mode only)
Five beeps are sounded after attempting to place a trunked call. These
beeps indicate that the radio is out of rangeof the GE-MARC system, or if
the beeps sound when the radio is within known range of the system, the
radio may need servicing (even though the self diagnostic test passed at
power on).
INVALID CALL ORIGINATE ALERT (Trunked mode only)
A low frequency tone is sounded for one second immediately after
pressing the mic PTT. The display does not show WAIT. A call was
attempted with a group that is not enabled for call originate.
8

CARRIER CONTROL TIMER
(Trunked, Direct, and Conventional modes)
A pulsed tone signal is sounded when the microphone PTT is pressed
continuously for a preprogrammed time. After nine seconds of pulsing the
alert tone, the radio unkeys the transmitter and communications is inter-
rupted. While the tone is pulsing, the user can release and press the PTT
again to reset the timer and resume the conversation.
GE-MARC SYSTEM TONES
TheGE-MARCsystemmay give othertonesto alert theuser ofsystem
time-out, etc. Contact your GE-MARC system operator for details about
these alert tones.
BASIC OPERATION
TURNING THE RADIO ON
Push the POWER switch. A self diagnostic test is performed for 1
second. A 3 beep alert signal will then sound and the display will show
PASSED for one second. The display will then show the AREA and
GROUP which were last selected.
Set the volume level using the VOLUME UP or VOLUME DOWN
keys. A short beep will sound to show each volume level step. The beeps
will stop when maximum or minimum volume are reached or while
receiving a call.
Should the 3 beep alert not sound and/or the display shows ERROR,
contact your service representative.
NOTE
Pushing MENU and thenVOLUME UP simultaneously will imme-
diately place the volume at maximum. Conversely, pressing MENU
and VOLUME DOWN places the radio at minimum volume. The
MENU key acts as a "shift" key for these functions.
NOTE
9

TURNING THE RADIO OFF
Push the POWER switch or if the radio is connected to the vehicle
ignition switch, turn the vehicle ignition off. When the vehicle ignition is
turned back on, the radio power and all other radio settings will return to
the same condition last selected.
PLACING ADISPATCH CALL
(TRUNKED MODE OPERATION)
1. Select the desired trunked mode AREA and GROUP using the
AREA and GROUP keys. If the SPECIAL CALL (SPC) feature is
desired, select theareafollowed by simultaneouslypressingMENU
and then GROUP UP. The display will show SPC after the area
name. If the area has no programmed groups, SPC selection is
automatic.
2. Momentarily press the microphone push-to-talk (PTT) switch to
acquire a channel. The display will show WAIT momentarily. A 3
tone alert signal will then signal when you can begin the conversa-
tion. If the "off-hook call originate" option is preprogrammed, the
radio will automatically attempt to acquire a channel when the
microphone is removed from the hanger without pressing the PTT.
Asteady one second low frequency tone will sound if the call cannot
becompleted due to all available channels busy. Press thePTTagain
later to retry the call.
A sequence of five beeps will sound if the radio cannot access a
channel due to being out of range of the GE-MARC system or an
inoperative radio.Any subsequent call request will be ignored for 20
If the call retry option has been preprogrammed in the radio, the
radio will automatically tryto acquireachannel every5 seconds,for
upto15timesunless theareaischangedoranout-of-rangecondition
occurs.
NOTE
If you plan on a lengthy call (or several calls), the vehicle engine
should be running to maintain battery charge.
NOTE
10