Ericsson M-PA SELECT User manual

Operator’s Manual
M-PATM SELECT MODEL
PORTABLE RADIO
(DES ALGORITHM)
E
LBI-38686A

TABLE OF CONTENTS (CONT.)
BATTERY PACKS . . . . . . . . . . . . . 14
INSTALLINGTHEBATTERYPACK . . . 14
REMOVING THE BATTERY PACK . . . 15
CHARGINGTHE BATTERYPACKS . . 15
RECHARGEABLE BATTERY PACK
DISPOSAL . . . . . . . . . . . . . . . 16
SWIVEL MOUNT REMOVAL AND
REPLACEMENT . . . . . . . . . . . . . . 16
INTRINSICALLY SAFE USAGE . . . . . . 16
BATTERY PACKS . . . . . . . . . . . . 17
ACCESSORIES . . . . . . . . . . . . 17
GLOSSARY . . . . . . . . . . . . . . . . 18
WARRANTY . . . . . . . . . . . . . . . . 20
NICKEL-CADMIUMWARRANTY . . . . . 21
TABLE OF CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . 5
CONTROLS . . . . . . . . . . . . . . . . . 5
INDICATORS . . . . . . . . . . . . . . . . . 7
UNIVERSAL DEVICE CONNECTOR . . . . 8
ALERTTONES . . . . . . . . . . . . . . . . 8
OPERATION . . . . . . . . . . . . . . . . . 9
POWER-UP . . . . . . . . . . . . . . . . 9
CRYPTOGRAPHIC KEY HANDLING . . . 9
RECEIVING A MESSAGE . . . . . . . 10
TRANSMITTING A MESSAGE . . . . . 11
EMERGENCY OPERATION . . . . . . 12
OPERATINGTIPS . . . . . . . . . . . . . 12
OPERATING RULES AND
REGULATIONS . . . . . . . . . . . . . . 13
Copyright© December 1991, EricssonGE Mobile Communications Inc.
ThismanualispublishedbyEricssonInc.,withoutanywarranty.Improvementsandchangestothismanualnecessitatedbytypographicalerrors,inaccuraciesofcurrentinformation,
or improvements to programs and/or equipment, may be made by Ericsson Inc., at any time and without notice.Such changes will be incorportated 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 ofEricsson Inc.
2

PRODUCT SPECIFICATION FOR CE MARKED
EQUIPMENT
TheM-PAPortableconformstothefollowingProd-
uct Specifications.
EUROPEAN STANDARDS:
Safety: Not Applicable
EMC: prETS 300 279 (August 1995)
TTD: Not Applicable
SUPPLEMENTARY INFORMATION:
At this time, the M-PA portable radio may not be
operatedwhile inavehicularchargerintheEuropean
Communitysinceithasnotbeenevaluatedforopera-
tion in this mode.
The M-PA portable radio may be used in both
trunked and conventional applications.
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Figure 1 -M-PASelect Model Radio
FRONT VIEW
SIDE VIEW
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INTRODUCTION
This manual describes the operation of the
M-PA

Voice Guard® Select model radio. This full-
featuredportableradioprovidesVoiceGuardtwo-way
communicationsusingtheDataEncryptionStandard
(DES) algorithm. The M-PA Voice Guard radio pro-
videsfull-rangeperformanceforprivate(guarded)and
clear communications.
The cryptographic key in the radio provides the
encryptionanddecryptioncodenecessaryforprivate
communications. Only radios with the same crypto-
graphic key can monitor and communicate. Crypto-
graphic keys are transferred into the radio using DES
Keyloader,OptionV4025.
Operatingcontrolsontheradioincludearotatable
control knob, rotatable volume control, push-to-talk,
emergency and monitor buttons. The on/off power
switch forthe unit islocated on the removablebattery
pack.
The 8-digit alphanumeric liquid crystal display
(LCD) on the front of the radio displays the operating
statusoftheradio. Thisbacklitdisplay alsohaseight
statusflagsthatindicatevariousoperatingconditions
such as private communicationsenabled, transmitter
on, oremergency mode enabled.
The exact operation of your radio will vary de-
pending upon the mode of operation, the radio’s pro-
gramming, and the particular radio system. Consult
your radio system’s representative for particular fea-
tures that are programmed into your radio.
CONTROLS
ON/OFF SWITCH
The ON/OFF SWITCH is located on the battery
pack. Sliding this switch up will supply power to the
radio from the battery pack. An audible click will be
heard and the "ON" indicator will be exposed. When
the radio is turned on, it will perform a power-up self
testandthenresumeoperationonthepreviousoper-
ating channel as displayed in the LCD. Sliding the
switch down will turn the radio off.
VOLUME CONTROL KNOB
The VOLUME CONTROL KNOB is a rotatable
control on the top of the radio used to adjust the
receiver’s audio level in the speaker. Rotating this
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knob in a clockwise direction will increase the audio
level. Counter-clockwise rotation will decrease the
audiolevel. Minimumlevelsmaybeprogrammedinto
the radio to prevent missed calls due to too low of a
volume setting.
CONTROL KNOB
The rotatable 16-position CONTROL KNOB lo-
cated on the top of the radio selects the operating
channel. Astopplatemaybeinstalledundertheknob
to limitthe maximumnumberofpositionstolessthan
sixteen (16). It is normally factory installed for fifteen
(15) positions.
PTT BUTTON
Pressing the PTT BUTTON on the side of the
radio will enable the radio’s transmitter. The "TX"
statusflaginthedisplaywillturnonwhentheradiois
transmitting. Releasing the PTT BUTTON will return
operation to receive mode.
MONITOR BUTTON
TheMONITORBUTTONisusedtounsquelchthe
receiver. Momentarilypressingthisbuttonwilldisable
squelch and the receiver noise will be heard in the
speaker.
If programmed enabled for the selected channel,
Channel Guard (CG) and/or Type 99(T99) signalling
will be enabled when the channel is selected. If CG
and/or T99 are enabled, the appropriate status flag
"CG" and/or "T99" will turn on. The MONITOR BUT-
TON may then be used to toggle CG and/or T99
between disabled and enabled by pressing and hold-
ing the it for at least one (1) second;the appropriate
status flag will toggle on or off. The MONITOR BUT-
TONisalsousedtoresetT99operationafteracallis
received.
EMERGENCY BUTTON
The EMERGENCY BUTTON is the small red
buttonlocatedontopoftheradioneartheantenna. If
this button is programmed for emergency operation,
pressing it for at least one (1) second will cause the
radiototransmitGE-STARemergencysignalling. The
"EMG"statusflagwillturnon. GE-STARistransmitted
according to one of several different programmable
methods. See EMERGENCY OPERATION for de-
tails.
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This button may also be programmed as a home
mode button. Ifprogrammedinthismanner,pressing
it will switch operation to the programmed home
mode.
INDICATORS
Theradio’sliquidcrystaldisplay(LCD)locatedon
the front panel has eight (8) alphanumeric characters
and eight (8) status flags. This display indicates the
current operating channel and various messages.
LCD backlighting will turn on for a short period
anytimeanactivebuttonispressedortheCONTROL
KNOB is rotated. Backlighting may be programmed
to remain off at all times.
The eight (8) status flags located along the top
and bottomofthe displayindicateoperatingstatusas
follows:
EMG EMerGency mode - On indicates emer-
gencyGE-STARsignallinghasbeeniniti-
ated by the user.
HI HIgh power transmit - On indicates the
selected channel has been programmed
for high power transmit operation. Off
indicates low power transmit.
T99 Type99tonedecode- OnindicatesType
99 tone decoding is enabled on the se-
lected channel. Flashing indicates a T99
selective call has been received and the
radio must be reset to receive another
T99 call.
PVT PriVaTe mode - On indicates private
mode is enabled and the radio will trans-
mit encrypted messages on the selected
channel. Flashingindicatesanencrypted
message is being received.
TX Transmitter enabled - On when the radio
is transmitting.
BSY BuSY - On indicates a carrier is being
received (the channel isbusy). Note that
iftheselectedchannelisprogrammedfor
Figure 2 - Liquid Crystal Display
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Channel Guard (CG), Digital Channel
Guard (DCG), or Type 99 (T99) tone de-
code operation, the radio may not un-
squelch if a valid tone(s) is not received;
the BSY status flag will be on.
CG ChannelGuard-OnindicatestoneChan-
nel Guard (CG) or Digital Channel Guard
(DCG) encode/decode is enabled on the
selected channel.
BAT BATtery low - On indicates the battery
pack’s charge is low.
UNIVERSAL DEVICE CONNECTOR
TheUniversalDeviceConnector(UDC)islocated
on the side of the radio just above the PTT and
MONITOR BUTTONS. This connector provides con-
nectionsfortheexternalaccessoriessuchasahead-
set,aspeaker-mike,oranemergencylanyard. When
the radio islocked in avehicular charger/repeater the
UDC provides the audio andcontrolconnections be-
tween the radio and the vehicular charger/repeater.
The UDC is also used by the maintenance personnel
when the radio is programmed.
ALERT TONES
The M-PA uses alert tones or "beeps" to indicate
various operating conditions. The alert tones may be
disabled when the radio is programmed.
CARRIER CONTROL TIMER
This feature, programmable on a per channel
basis,preventsunnecessarychanneltrafficandradio
damage in the event of a "stuck" mic. If the pro-
grammed timer times-out during a transmission the
radio will sound an alert tone and disable the trans-
mission. ThebeepingtonewillcontinueuntilthePTT
BUTTON is released. Releasing the PTT BUTTON
resets the timer.
CHANNEL BUSY
If the radio is receiving a signal when the PTT
BUTTON is pressed, an alert tone will warn the op-
erator that the radio is receiving a carrier and the
transmission will not occur. "RX BUSY" is displayed
andthealarmissoundedaslongasthePTTBUTTON
ispressed. Thisfeatureisprogrammableonoroffon
a per channel basis.
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RECEIVE ONLY CHANNEL
Ifthe selectedchannelisprogrammedasreceive
onlytheradiowillsoundanalerttoneifatransmission
is attempted. "RXONLY" is displayed.
RADIO/CHANNEL FAILURE
Ifthesynthesizerisunabletolockcorrectlyonthe
selected channel, or another radio failure occurs, an
alert tone will sound. If incorrect programming is
detected or the synthesizer fails to lock, the display
flashes "NO LOCK" then the selected channel’s
name.
OPERATION
POWER-UP
After the battery pack and antenna have been
installed, turn the radio on by sliding the ON/OFF
SWITCH on the battery pack up. After the radio has
completedapower-upself-test,itwillbeginoperation
onthelastoperatingstateasdisplayedintheLCD. If
programmed on, the power-up alert tone (beep) will
be heard.
CRYPTOGRAPHIC KEY HANDLING
Cryptographic keys are transferred into the radio
using the Keyloader, Option V4025. Refer to the
Keyloader operator’s manual (LBI-31541) for detailed
instructions on how to load keys into the Keyloader.
The radio is capable of storing up to seven (7)
different cryptographic keys in its memory. It is pro-
grammed for key selection on a per channel basis.
Transferring Keys Into The Radio
The following procedure outlines basic key trans-
ferring steps. See LBI-31541 for more details.
1. Turn the radio off.
2. Plug the modular connector of the Key-
loader cable into the Keyloader’s modular
jack.
Before private messages can be sent or
received, one or more cryptographic keys
must be transferred into the radio from the
Keyloader.
NOTE
9

3. ConnecttheKeyloadercabletotheUDCon
the radio.
4. PressthePWRbuttonontheKeyloaderand
wait for the Keyloader to display "MASTER
MODE".
5. Press the TRN button on the Keyloader. If
necessary, select a different cryptographic
key to be transferred into the radio.
6. Turn the radio on. The display should read
"KEY LOAD".
7. Press the EXE button on the Keyloader to
transfer the key. The Keyloader will display
"GOOD 1.x TRANSFER" where "x" is the
selected cryptographic key number.
8. Disconnect the cable from the radio’s UDC.
A single beep will be heard from the radio’s
speaker if the power-up alert tone is en-
abled. Theradiowillchangetotheselected
channel as indicated in the display.
Key Zero
All cryptographic keys stored in the radio can be
zeroed or "dumped" by removing the battery pack for
several minutes (typically three). When the battery
pack is later reinstalled and the radio is powered-up,
itwilldisplay"KEYZERO"andemitaseriesofbeeps.
If cryptographic key(s) are zeroed, one or more keys
must betransferredinto the radiofromthe Keyloader
before private communications may continue. Disas-
sembling the front half of the radio from the rear half
will also zero all keys.
RECEIVING A MESSAGE
1. Slide the ON/OFF SWITCH on the battery
packtotheonposition. Theradiowillinitiate
and complete the power-up self-test and
beep if the power-up alert tone is pro-
grammed on.
2. Select the desired channel.
3. Press the MONITOR BUTTON to disable
squelch and adjust the VOLUME CON-
TROL for the approximate desired speaker
audio level. Pressing the MONITOR BUT-
TONmayaffectChannelGuardand/orType
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