Ericsson AEGIS FDMRTS M-PA NARROWBAND 9600 User manual

ericssonz
AEGIS FDMRTS M-PA
NARROWBAND 9600
PORTABLE RADIO
Operator’s Manual
LBI-33054A

Copyright © March 1995, Ericsson Inc.
Table of Contents
INTRODUCTION . . . . . . . . . . . . 5
CONTROLS . . . . . . . . . . . . . . 5
INDICATORS . . . . . . . . . . . . . 10
OPERATION . . . . . . . . . . . . . . 13
POWER-UP . . . . . . . . . . . . . 13
SYSTEM/GROUP/CHANNEL
SELECTION . . . . . . . . . . . . . 14
VOICE MODES . . . . . . . . . . . 15
Clear Modes . . . . . . . . . . . 15
Table of Contents (Cont.)
Aegis Digital Mode . . . . . . . 16
Aegis Private And Voice Guard
Private Modes . . . . . . . . . . 16
TRUNKED MODE OPERATION . . 20
ReceivingAMessage . . . . . . 20
SendingAMessage . . . . . . . 21
Emergency Operation (Trunked
Mode) . . . . . . . . . . . . . . 23
Dynamic Regrouping . . . . . . 23
Wide Area SystemScanning . . 24
Scanning Trunked Groups . . . 24
Special Calls . . . . . . . . . . 26
Manually Dialed Telephone Inter-
connect Calls . . . . . . . . . . . . 29
STATUS MESSAGE OPERATION . 30
CONVENTIONALMODE
OPERATION . . . . . . . . . . . . 30
ReceivingAMessage . . . . . . 30
SendingAMessage . . . . . . . 31
Emergency Operation (Conven-
tional Mode) . . . . . . . . . . . 33
Scanning Conventional
Channels . . . . . . . . . . . . 33
This manual is published by Ericsson Inc., without any warranty.
Improvements and changes to this manual necessitated by typo-
graphical errors, inaccuracies of current information, or improve-
ments to programs and/or equipment, may be made by Ericsson
Inc., at any time and without notice. Such changes will be incorpor-
tated intonew editions of this manual. No partof this manual maybe
reproduced or transmitted in any form or by any means, electronic
or mechanical, including photocopying and recording, for any pur-
pose, without the express written permission of Ericsson Inc.
This manual covers Ericsson and General Electric products manufactured
and sold by Ericsson Inc.
NOTICE
The software contained in this device is copyrighted by Ericsson Inc.
Unpublished rights are reserved under the copyright laws of the United
States.
NOTICE
2

Table of Contents (Cont.)
OPERATINGTIPS . . . . . . . . . . . 34
OPERATING RULES AND REGULA-
TIONS . . . . . . . . . . . . . . . . . 35
BATTERYPACKS . . . . . . . . . . . 36
INSTALLING THE BATTERY PACK . 36
REMOVING THE BATTERY PACK . 36
CHARGING THE BATTERY PACK S38
RECHARGEABLE BATTERY PACK
DISPOSAL . . . . . . . . . . . . . . 38
SWIVELMOUNTREMOVALAND
REPLACEMENT . . . . . . . . . . . . 38
GLOSSARY . . . . . . . . . . . . . . 39
WARRANTY . . . . . . . . . . . . . . 44
NICKEL-CADMIUM BATTERY
WARRANTY . . . . . . . . . . . . . . 45
3

Figure 1 -Aegis EDACS Model Radio
SCAN SYSTEM
4

INTRODUCTION
TheAegisM-PASystemmodelportableradio
isahigh-performancetwo-wayradiothatprovides
clearvoice(fortestonly),Aegisdigital,andAegis
private communications. Personality program-
ming allows maximum integration flexibility.
The radio must be equipped with the en-
crypt/decrypt option before operation in Aegis
private mode is possible. This option allows the
radio to communicate using highly secure state-
of-the-art Aegis encryption and decryption tech-
nique.
Operating controls on the radio include a
rotatable system/group/channel control knob, ro-
tatablevolumecontrol,16-buttonkeypad(System
Modelonly),push-to-talk,emergencyandmonitor
buttons. The on/off power switch for the unit is
located on the removable battery pack.
The8-digitalphanumericliquidcrystaldisplay
(LCD) on the front of the radio displays the oper-
atingstatusoftheradio. Thisbacklitdisplayalso
has sixteen status flags that indicate various op-
erating conditions such as private communica-
tions enabled, transmitter on,scanning, or emer-
gency mode enabled.
The exact operation of your radio will vary
depending upon the mode of operation, the ra-
dio’s programming, and the particular radio sys-
tem. Consult your radio system’s representative
for particular features that are programmed into
your radio.
CONTROLS
ON/OFF SWITCH
TheON/OFFSWITCHislocatedonthebat-
terypack. Slidingthisswitchupwillsupplypower
totheradiofromthebatterypack. Anaudibleclick
willbeheardandtheONindicatorwillbeexposed.
When the radio is turned on, it will perform a
power-up self test and then resume operation on
the previous operating system, group or channel
as displayed in the LCD. Slidingthe switch down
will turn the radio off.
5

VOLUME CONTROL KNOB
The VOLUME CONTROL KNOB is a ro-
tatable control on the top of the radio used to
adjust the receiver’s audio level in the speaker.
Rotating this knob in a clockwise direction will
increasetheaudiolevel. Counter-clockwiserota-
tionwilldecreasetheaudiolevel. Minimumlevels
may be programmed into the radio to prevent
missed calls due to too low of a volume setting.
CONTROL KNOB
The rotatable 16-positionCONTROLKNOB
located on the top of the radio may be pro-
grammed to select trunked groups and conven-
tionalchannelsoritmaybeprogrammedtoselect
systems. SeeSYSTEM/GROUP/CHANNELSE-
LECTION for details.
Astopplatemaybeinstalledundertheknob
to limit the maximum number of positions to less
than sixteen (16). It is normally factory installed
for fifteen (15) positions.
PTT BUTTON
PressingthePTTBUTTONon thesideofthe
radio will enable the radio’s transmitter. The TX
status flag in the display will turn on when the
radioistransmitting. ReleasingthePTTBUTTON
will return operation to idle/receive mode.
Whenoperatinginatrunkedsystem,theradio
may be programmed to automatically transmit
(withouttheoperatorpressingthePTTBUTTON)
tomaintaincommunicationwiththesitecontroller.
The TX status flag will turn on when the radio is
transmitting.
MONITOR BUTTON
Trunked Mode
When operating in trunked mode, pressing
the MONITOR BUTTON after an individual call
has been received will return the radio to the
groupcallmode. Theradiowillnotrespondonan
individual basis, but will then transmit group calls
whenthePTTBUTTONispressed. Theradiowill
also automatically return to the group call mode
after the programmed call-back time-out period
expires.
6

Pressing the MONITOR BUTTON will also
clear any digits entered fromthe numeric keypad
andreturntheradiototheselectedgroupdisplay.
In addition, this button is used to toggle be-
tween group and regroup settings ifthe Dynamic
Regrouping mode (with deselect capability) has
been enabled by the site controller.
Conventional Mode
When the radio is operating in conventional
mode the MONITOR BUTTON is used to un-
squelch the receiver.
EMERGENCY BUTTON
When operating in trunked mode, pressing
and holding the red EMERGENCY BUTTON on
top of the radio for a programmable time period
willinitiateanemergencycallwithvoiceoperation
on the programmed home group. If no home
group is programmed intothe radio, voice opera-
tion will be on the selected group.
S
KEY
The S key located on the keypad may be
programmed to select trunked groups and con-
ventional channels or it may be programmed to
select systems. See SYSTEM/GROUP/CHAN-
NEL SELECTION for details.
S is also used to scroll through the pro-
grammed special call table when the special call
mode is enabled.
s KEY
Pressing the s key on the keypad will
togglescanoperationonandoff(forradioswhich
have this feature). When the radio is scanning,
the SCN status flag in the display will show and
Figure 2 -Scan Keypad
7

allgroupsinthescanlistinthecurrentsystemwill
be scanned.
SPECIAL CALL KEY
When operating in trunked mode, pressing
P will switch operation from the group select
mode to the special call mode. The last selected
special call will be displayed.
While in special call mode, the next pro-
grammed special call may be selected by press-
ing S . Pressing @ then S willselectthe
previous programmed special call.
The caller’s ID of the last received individual
callisselectablebypressingthespecial call P
key. See Special Calls for details.
2nd FUNCTION KEY
OntheScanModel,two(2)ofthekeysonthe
keypad are dual-function keys. Press and re-
lease the blue function keyto shift keypad selec-
tion to the A/D and PVT keys.
Seven (7) of the keys on the System model
keypad are dual-function keys. Press and re-
lease the blue @ function key to shift keypad
selection to the A/D, PVT, STO, RCL, CLR, KEY
or STS keys. The following paragraphs describe
operation of the shifted buttons.
Figure 3 - System Keypad
8

ADD/DELETE KEY (Shifted SCAN Key)
When in trunked mode, pressing and releas-
ing @ andthenpressingA/D(shifted s key)
will add the selected group to the scan list if it is
not already on the list. Repeating this sequence
will delete the group from the list. When the
selectedgroupisonthescanlist,theSstatusflag
will show in the display.
Scanmustbeturnedoffbeforegroupscanbe
added to or deleted from the scan list. See s
s
KEY for details.
PRIVATE BUTTON (Shifted SPC Key)
Private transmit mode is enabled ordisabled
bypressingandreleasing @ andthenpressing
PVT (shifted
P key). When enabled, the PVT
status flag in the display will turn on.
If the radio is programmed for forced private
operation, FRCD PVT will be displayed when
@ PVTispressed;privatetransmitmodeisnot
disabled. If the selected group or channel is not
programmed for private operation, PVT DIS will
momentarilyshow in the displaywhen @ PVT
is pressed; the radio will not change to private
mode. See PRIVATE COMMUNICATIONS for
additional details.
STORE KEY(Shifted)
1 (shifted digit 1) allows ten (10) tele-
phone numbersand ten (10)radio IDnumbers to
be stored and later recalled with the RCLbutton.
Store a telephone number by entering the
number (up to 29 digits) followed by an asterisk
(*). Next, enter the storage location (1-10) and
press and release @ and then press 1 .
STORED will be displayed for two seconds.
StoreindividualradioIDnumbersbyentering
the ID number (1 - 16382) followed by a pound
sign (#). Next enter the storage location (1-10)
andpressandrelease @ andthenpress 1 .
STORED will be displayed for two seconds.
Do not use in Conventional mode.
NOTE
9

RECALL KEY (Shifted Digit 3)
3 allows the previously stored telephone
or radio ID numbers to be recalled. To recall a
number first enter an * or # (* for telephone
number, # for radio ID number) and then enter
the storage location (1-10). Next press and re-
lease @ andthen press 3 and thenumber
will be displayed.
CLEAR KEY (Shifted # )
To clear the last digit entered, press and
release @ and then press # (shifted #
button). Holding CLR down will repetitively clear
previous digits. The radio will return to the last
operating state when all entered digits are
cleared.
KEY KEY (Shifted)
Pressingandreleasing @ andthenpress-
ing ^ willdisplaythecurrentoperatingcrypto-
graphic number. See PRIVATE COMMUNICA-
TIONS for details.
STATUS KEY
The 5 key is not currently used.
KEYPAD LOCK FEATURE
To prevent accidental activation of the keys
on the keypad, press and release the @ func-
tion key followed by pressing the MONITOR but-
tontolockthekeypad;LOCKEDwillbedisplayed
momentarily. To unlock the keypad, press and
release the @ function key followed by press-
ing the MONITOR button a second time; UN-
LOCKED will be displayed momentarily.
INDICATORS
The radio’s liquid crystal display (LCD) lo-
cated on the front panel has eight (8) alphanu-
meric characters and sixteen (16) status flags.
This display provides indications of the current
operating system, group or channel and it dis-
playsvariousothermessagessuchasspecialcall
ID names or numbers, and telephone intercon-
nect numbers.
10

LCD backlighting will turn on for 2 seconds
anytime an active key or button is pressed or the
CONTROLKNOBisrotated. Backlightingmaybe
programmed to remain off at all times.
The sixteen (16) status flags located along
the top andbottom ofthe display indicateoperat-
ing modes and conditions as follows:
EMG EMerGency mode - On indicates an
emergency call has been initiated by
the user. Flashing indicates an emer-
gency call has been received.
NC NoControlchannel- Onindicatesthe
radio is not receiving the trunked con-
trol channel. Flashing indicates the
trunkedsystemisinafailsoftcondition
(supervisory radios only).
HI HIgh power transmit - On indicates
the selected system or channel has
been programmed for high power
transmit operation. Off indicates low
power transmit.
MSG MeSsaGe - Flashing indicates an in-
dividual call has been received
(trunked mode).
CNV CoNVentionalmode-Onindicatesthe
radio is operating in the conventional
mode.
SPC SPecial Call mode - On indicates the
special call mode has been enabled
(trunked mode).
PVT PriVaTe mode - On indicates private
mode is enabled and the radio will
transmit encrypted messages on the
selected group or channel. Flashing
indicatesanencryptedmessageisbe-
ing received.
TX Transmitter enabled - On when the
radio is transmitting.
BSY BuSY - When in trunked mode, on
indicates the radio is receiving a call;
flashing indicates a call has been
queued. In conventional mode, on in-
dicates a carrier is being received.
Figure 4 - Liquid Crystal Display
11

BAT BATterylow-On indicatesthebattery
pack’s charge is low.
S Scan list - On indicates the selected
group/channel is on the scan list.
SCN SCaNmode-Onindicatestheradiois
scanning (for radios which have this
feature).
UNIVERSAL DEVICE CONNECTOR
The Universal Device Connector (UDC) is
locatedonthesideoftheradiojustabovethePTT
and MONITOR BUTTONS. This connector pro-
vides connections for the external accessories
such as a headset, a speaker-mike, or an emer-
gency lanyard. When the radio is locked in a
vehicular charger/repeater the UDC provides the
audio and control connections between the radio
and the vehicular charger/repeater. The UDC is
also used by the maintenance personnel when
the radio is programmed.
ALERT TONES
Theradiosoundsfive(5)basicalerttonesor
"beeps" to indicate various operating conditions.
Alert tones may be programmed to remain off at
all times.
•500 Hz Tone –trunked failure tone -
sounds when a trunked
failure has occurred (call
denied, failed confirma-
tion).
–lowbattery-soundswhen
the battery pack’s charge
is low.
•800 Hz Tone –private mode disabled -
on a conventional chan-
nel,soundswhenthePTT
BUTTON is pressedif pri-
vate transmit mode has
previously been disabled.
•1000 Hz Tone –alert tone - sounds when
a button is pressed and a
status change occurs
–channel access tone -
sounds when a trunked
channel has been as-
signed and it is clear to
talk.
Anytime there is a device change to the
UDC, the radio should be turned off and
then back on again.
NOTE
12

•1200 Hz Tone –private mode channel ac-
cess tone - sounds when
the radio is in the private
transmit mode, a trunked
channel has been as-
signed and it is clear to
talk.
•2500 Hz Tone –call queued tone -sounds
when a trunked call is
queued.
OPERATION
POWER-UP
Afterthebatterypackandantennahavebeen
installed, turn theradio on bysliding the ON/OFF
SWITCH on the battery pack up. After the radio
has completed a power-up self-test, it will begin
operationonthelastoperatingstateasdisplayed
intheLCD. Ifprogrammedon,thepower-upalert
tone (beep) will be heard.
If the radio was previously operating in a
trunkingsystemandcommunicationwiththissys-
tem’s control channel cannot be established, the
NC status flag will turn on. This may occur if, for
example, the radio is out ofrange of theprevious
trunking site. It may be necessary move to an-
other location, select another trunking system, or
a conventional channel.
SYSTEM/GROUP/CHANNEL SELECTION
The radio may be programmed with one of
two different system/group/ channel selection
modes as follows:
•Systems are selected with the
S key;
groups and channels are selected with the
CONTROL KNOB.
or
•Systems are selected with the CONTROL
KNOB; groups and channels are selected
with the
S key.
13

STEP Key Programmed For System
Selection
CONTROL KNOB Programmed For
Group/Channel Selection
System Selection
Press and release S to select the next
systemprogrammedintotheradioasindicatedin
the display. To select the previous system, press
and release @ and then press S . Holding
down S will cause the radio to automatically
scroll through the system list.
Upon reaching an end of the system list, the
radio may be programmed to stop selection or
wrap around (go from one end to the other).
Group/Channel Selection
After the desired system is selected with the
S key, rotate the CONTROL KNOB to the
desiredtrunkedgrouporconventionalchannelas
indicated in the display. A stop-plate may be
placed under the knob which will limit the maxi-
mum positions to less than sixteen (16).
CONTROL KNOB Programmed For System
Selection
STEP Key Programmed For Group/Channel
Selection
System Selection
Rotate the CONTROL KNOB to the desired
system as indicated in the display. A stop-plate
may be placedunder the knob which willlimit the
maximum positions to less than sixteen (16).
Group/Channel Selection
After the desired system is selected with the
CONTROL KNOB, press and release S to
select the next trunked group or conventional
channel programmed into the radio as indicated
in the display. To select the previous group or
channel, press andrelease @ and then press
S . Holding down
S will cause the radio to
automatically scroll through the group/channel
list.
Upon reaching an end of the group/channel
list, the radio may be programmed to stop selec-
tionorwraparound(gofromoneendtotheother).
14

VOICE MODES
Aegis programmed systems have three (3)
different voice modes: clear (for test only),digital
and private.
Thevoice modesareprogrammedonaper-
groupbasis (forgroupcalls) and onaper-system
basis(forindividual, telephone interconnect, sys-
tem all and dynamic regroup calls) for trunked
systems. Voice modes are programmed on a
per-channel basis for conventional system.
Clear Modes
InAegisclear mode theradiotransmitsand
receives only clear (analog) voice signals. These
analog signals are non-digitized and non-en-
crypted. Clear mode transmissionscan be easily
monitored by unauthorized persons. Groups and
channels programmed for clearoperation cannot
transmit or receive Aegis digital or private mes-
sages. Clear mode is for test only.
*Assumesthepropercryptographickeyisloaded.
Aegis Digital Mode
Aegisdigitalmodeallowstheradiototransmit
and receive digitized voice signals. Aegis digital
signals provide improved weak signal perform-
ance and they cannot be easily monitored with a
standard receiver. Groups and channels pro-
grammedforAegisdigitaloperationtransmitonly
digital signals and they can receive clear and
digitalsignals.Inotherwords,withacertaingroup
or channel selected, the operator cannotchange
from the digital transmit mode but the radio will
TRANSMIT/RECEIVE MODE
COMPATIBILITY
FOR AEGIS OPERATION
GROUP/CHANNEL
PROGRAMMING
(TRANSMIT)
RECEIVE CAPABILITY
CLEAR DIGITAL PRIVATE
CLEAR Yes No No
DIGITAL Yes Yes No
PRIVATE Yes No Yes *
15

receiveclearordigitalsignals.Private(encrypted)
messages cannot be received when the radio is
in Aegis digitalmode.
Aegis Private Mode (Optional)
The Aegis private mode allows the radio to
transmit and receive encrypted messages. To
operate in this voice mode, the radio must be
equipped with the optional encrypt/decrypt fea-
tureandthetransmittingandreceivingunitsmust
have identical cryptographic keys.
Cryptographic keys are transferred into the
radio using a cryptographic Keyloader. Up to six
(6) different cryptographic keys, numbered 1 - 6,
can be transferred from a Keyloader and stored
in the radio.
Ontrunkedsystems,individualkeysareauto-
maticallyselected fromeithertheper-groupcryp-
tographic key (for group calls) or the per-system
cryptographic key (for special and dynamic re-
group calls).
VGE radios require a VGE Keyloader(option
V4028 with software version 2.N or later). See
LBI-31685 for operating details on the VGE Key-
loader.
When operating on a group or channel pro-
grammed for private mode, all transmissions will
beprivatetransmissionsandtheradiowillreceive
clear and private signals. The PVT status flag in
the display turns on when the private mode is
enabled. If the selected group or channel is pro-
grammedforautoselectcapability,themodemay
be toggled between private and clear using the
@ - PVT keys (shifted P ). Radios pro-
grammedforforcedprivateoperationdonotallow
achangeofthetransmitmode;thePVTkeydoes
not function.
If a forced private radio loses its keys, it will
only be able to transmit on designated clear and
digitalgroups/channels/specialcalls.Itwillnotbe
able to transmit on designated private
groups/channels/special calls.
16

Transferring Keys Into The Radio
The following procedure outlines basic key
transferring steps.
1. Turn the radio off.
2. Plug the modular connector of the Key-
loader cable intothe Keyloader’s modu-
lar jack.
3. ConnecttheKeyloadercabletotheUDC
on the radio.
4. PressthePWRbutton ontheKeyloader
and wait for the Keyloader to display
"MASTER MODE".
5. Press theTRN button onthe Keyloader.
If necessary, select a different crypto-
graphic key to be transferred into the
radio.
6. Turn the radio on. The display should
read "KEYLOAD".
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 enabled. The radio will change
totheselected grouporchannelasindi-
cated in the display.
Key Zero
All cryptographic keys can be zeroed or
"dumped"whentheradioisonbysimultaneously
pressing the
S and
@ buttons for at least
onesecond. Whenthekey(s)havebeenzeroed,
the radio willdisplay KEY ZERO and it will emita
series of beeps. If the cryptographic key(s) are
zeroed,oneormorekeysmustbetransferredinto
the radio from the Keyloader before private com-
munications may continue.
Before private messages can be sent or
received,one or morecryptographickeys
must betransferred intothe radiofrom the
Keyloader.
NOTE
17

Displaying The Currently Used
Cryptographic Key Number
To display the cryptographic key currentlyin
use,pressandrelease @ andthenpress ^
One of the following messageswill be displayed:
•KEY x - where "x" is the key number (1 -
6) currently in use.
•NO KEY x - where "x" is the key number
(1-6)programmedfortheselectedgroup
or channel. The selected group or chan-
nelhasbeenprogrammedfor privateop-
eration but the key has been zeroed or
never transferred into the radio.
•PVT DIS - the selected group or channel
is not programmed for private operation.
Receiving An Encrypted Message
When receiving, the radio automatically
switches between clear or private operation. If
the transmission being received is an encrypted
transmission, it will bedecrypted, the PVT status
flagwillflash,thereceiverwill unsquelch,andthe
message will beheard in the speaker. For thisto
occur, the selected group or channel must be
programmedforprivateoperationandthecorrect
cryptographic key must be loaded into the radio.
Transmitting An Encrypted Message
1. Select the desired group, channel or
Special Call.
2. Toggle operation to private transmit by
pressing and releasing @ and then
pressing PVT ( P ). When private
transmit mode is enabled, the PVT
status flag in the display will turn on.
Ifagroup,channel orSpecialCallisnot
programmedforprivatemodeoperation,
PVT DIS will momentarily show in the
display if an attempt is made to enable
private transmit mode. It is not possible
tooperateonthisgroup/channel/Special
Call in private mode.
If the radio is programmed for forced
private transmit operation, FRCD PVT
willmomentarilyshowinthedisplayifan
attemptismadetodisableprivatetrans-
18

mit mode. It is not possible to transmit
on this group/channel in clear mode.
3. Continue with standard transmission
procedures. In conventional mode, if a
channel is programmed for private op-
eration and private transmit mode has
been disabled, the radio will sound an
alert tone when the PTT key is pressed
to warn of the clear (non-encrypted)
transmit mode.
TRUNKED MODE OPERATION
Digital trunking provides fast communication
access. Inthismodethe operatorselectsacom-
munication system and group and the communi-
cation channel is allocated through digital
signaling with the site. The following operation is
applicable to clear, digital and private operation
unless otherwise noted.
Receiving A Message
1. Slide the ON/OFF SWITCH on the bat-
tery pack to the ON position. The radio
will initiate and complete the power-up
self-testthenthesystem’snameandNC
status flag will be displayed until a con-
trolchannelislocated. Whenthecontrol
channel is located, the NC status flag
disappears and the group name is dis-
played.
2. Adjust the VOLUME CONTROL to an
approximate mid-range position.
3. Select the desired system and group
using the S key and CONTROL
KNOB. See the SYSTEM/GROUP/-
CHANNEL SELECTION operating pro-
cedures for details. The display
indicates the selected group.
4. The radio is now ready to receive mes-
sages.
5. GROUP CALL - When a group call is
received, the radio unsquelches on the
assigned channel and the BSY status
flag turns on. The group name or the
originator’s ID (depending on program-
ming)isdisplayed. Adjustthevolumeas
necessary.
19

INDIVIDUALCALL- If an individual call
(a call directed to only one radio) is re-
ceived, the radio will unsquelch on the
assigned channel and the BSY status
flagwillturnon. INDV,originatorsID,or
thecaller’sname(ifprogrammed)isdis-
playedandtheMSG statusflagflashes.
Adjust the volume as necessary.
Responding to an individual call prior to
the programmed call-back time-out will
automatically direct the transmission to
the originating unit on an individual ba-
sis.
TheMSGstatusflagwillremainflashing
even after the individual call time-out
period expires. Press the
P key
(SPecial Call) to call the originating unit
back. Theoriginator’sIDornamewillbe
displayed. Follow the procedures for
sending a special call.
ENCRYPTED MESSAGE - If the trans-
mission being received is an encrypted
transmission and the selected group is
programmed for private operation and
the correct cryptographic key is loaded
into the radio, then the receiver will un-
squelch, the PVT status flag will flash
andtheprivatemessagewillbeheardin
the speaker. The radio automatically
switchesbetweenclearorprivateopera-
tion when it is receiving on a group or
channel programmed for private opera-
tion.
Sending A Message
1. Turn the radio on, set the receive audio
level and select the desired system and
group.
2. When private transmit mode isenabled,
thePVTstatusflaginthedisplaywillturn
on. Toggle transmit operation to private
or clear, as desired, by pressing and
releasing @ and then pressing PVT
(shifted
P ).
3. Observe the display for the absence of
the BSY status flag to ensure no one is
transmitting on the selected group.
20