Ericsson Voice Guard M-Pa SCAN Operator's Manual
Operator’s Manual
LBI-38690A
E
M-PA
SCAN MODEL
PORTABLE RADIO
(VGE ALGORITHM)
TABLE OF CONTENTS
TABLE OF CONTENTS - Cont.
Page
INTRODUCTION . . . . . . 4
CONTROLS . . . . . . . . 5
ON/OFF SWITCH . . . . 5
VOLUME CONTROL
KNOB . . . . . . . . . . . 5
CONTROL KNOB . . . . 5
PTT BUTTON . . . . . . 5
MONITOR BUTTON . . . 7
EMERGENCY BUTTON . 7
MENU BUTTON . . . . . 7
PRIVATE BUTTON . . . . 8
This ma nual is published by
warranty. Improvement s and ch anges t o this ma nual necessitated by typographical errors, inaccuracies of current information, or improvements to programs and/or
equipment , may be made by
and without notice. Such changes will be incorporated
into new e ditions of this manual. No par t of this manual
may be repro duced or tran smitte d in any form or by any
means, el ectronic or mechanical, including photocopying
and record ing, for any pur pos e, wit hout the express written permission of
Ericsson Inc.
Ericsson Inc.
Ericsson Inc.
, without any
, at any time
Page
EXIT BUTTON . . . . . . . 9
SCAN BUTTON . . . . . . 9
SELECT BUTTON . . . . . 9
INDICAT ORS . . . . . . . . . 10
UNIVERSAL DEVICE
CONNECTOR . . . . . . . . 12
ALERT TONES . . . . . . . . 12
CARRIER CONTROL
TIMER . . . . . . . . . . . 12
CHANNEL BUSY . . . . . 13
RECEIVE ONLY
CHANNEL . . . . . . . . . 13
VOICE GUARD
DISABLED . . . . . . . . . 13
RADIO/CHANNEL
FAILURE . . . . . . . . . . 13
OPERATION . . . . . . . . . 13
POWER-UP . . . . . . . . 13
MODE/CHANNEL/CG
SELECTION . . . . . . . . 14
Copyright© December 1991, Ericsson GE Mobile Communications Inc.
2
TABLE OF CONTENTS - Cont.
TABLE OF CONTENTS - Cont.
Page
CRYPTOGRAPHIC
KEYHANDLING . . . . . 15
RECEIVING A
MESSAGE . . . . . . . . 17
TRANSMITTING A
MESSAGE . . . . . . . . 18
EMERGENCY
OPERATION . . . . . . . 20
SCANNING
CHANNELS . . . . . . . 20
Using Scan . . . . . . . . 22
TELEPHONE
INTERCONNECT
CALLS . . . . . . . . . . 23
"KEYLOCK" MENU . . . 24
"ALERT" MENU . . . . . 25
OPERATING TIPS . . . . . 25
OPERATING RULES AND
REGULATIONS . . . . . . . 26
Page
REMO VING THE
BATTERY PACK . . . . . . 28
CHARGING THE
BATTERY PACKS . . . . . 28
RECHARGEABLE BATTERY
PACK DISPOSAL . . . . . 30
SWIVEL MOUNT REMOVAL AND
REPLACEMENT . . . . . . . 30
INTRINSICALLY SAFE
USAGE . . . . . . . . . . . . 30
BATTERY PACKS . . . . . 31
ACCESSORIES . . . . . . 31
GLOSSARY . . . . . . . . . 32
WARRANTY . . . . . . . . . 38
NICKEL-CADMIUM BATTERY
WARRANTY . . . . . . . . . 39
BATTERY PACKS . . . . . . 28
INSTALLING THE
BATTERY PACK . . . . . 28
3
INTRODUCTION
This manual describes the opera-
®
tion of the M-PA Voice Guard
Scan
model radio. This full-featured portable
radio provides Voice Guard two-way
communications using the VGE algorithm. The M-PA Voice Guard radio provides full-range performance for private
(guarded) and clear communications.
The cryptographic key in the radio
provides the encryption and decryption
code n ecessar y for private communications. Only radios with the same cryptographic key can monitor and
communicate. Cryptographic keys are
transferred into the radio using VGE
Keyloader, Option V4028. VGE
equipped Vo ice Guard radios must also
be programmed with identical CUE
(Customer Unique Encryption) code(s)
before private c ommunications are possible. CUE cod es are programmed into
the radio along with the overall person-
ality information using an IBM PC or
compatible computer.
Operating controls on the radio include a r ot at able control knob, rotatable
volume control, 4-button keypad, pushto-talk, emergency and monitor buttons.
The on/off power switch for the unit is
located on the removable battery pack.
The 8-digit alphanumeric liquid
cr ystal d isplay (LCD ) on the front of the
radio displays the operating status of
the radio. This backlit display also has
twelve status flags that indicate various
operating conditions such as private
communications enabled, transmitter
on, scanning, or emergency mode enabled.
The exact operation of your radio
will vary depending upon the mode of
operation, the radio’ s programming, and
the particular radio system. Consult
your radio system’s representative for
4
particular features that are programmed
into your radio.
CONTROLS
will decrease the audio level Minimum
levels may be programmed into the radio to prevent missed calls due to too
low of a volume setting.
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 th e "ON" indi cat or will be exposed. When the radio is turned on, it
will perform a power-up self test and
then resume operation on the previous
operating channel as displayed in the
LCD. Sliding the switch down will turn
the radio off
VOLUME CONTROL KNOB
The VOLUME CONTROL K NOB is
a rotatable control on the top of the radio used to adjust the receiver’s audio
level in the speaker. Rotating this knob
in a clockw is e dir e ction will increase the
audio level. Counter-clockwise rotation
CONTROL KNOB
The rotatable 16-position CONTROL KNOB located on the top of the
radio is pr ogrammed to select the operating cha nnel, mode, or speci fic Channel Guard encode/decode tones. See
MODE/CHANNEL/CG SELECTION for
details. A stop plate may be installed
under the knob to limit the maximum
number of positions to less than sixteen
(16). It is normally factory installed for
fifteen (15) positions. Some radios may
be programmed with this knob disabled.
PTT BUTTON
Pressing the PTT BUTTON on the
side of the radio will enable the radio’s
transmitter. The "TX" status flag in the
display will turn on when the radio is
5
Figure 1 - M-PA Scan Model Radio
6
transmitting. Releasing the PTT BUTTON will return operator to receive
mode.
MONITOR BUTTON
The MONITOR BUTTON is used to
unsquelch the receiver. Momentarily
pressi ng t hi s butt on will disable 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) signaling will be
enabl ed wh en th e ch an nel i s s e l e cte d . if
CG and/or T99 are enabled, th e appropriate status flag "CG" and/or "T99" will
turn on. The MONITOR BUTTON may
then be used to toggle CG and/or T99
between disabled and enabled by
pressing and holding it for at least one
(1) second; the appropriate status flag
will toggle on or off The MONITOR
BUTTON is also used to reset T99 operation after a call is received.
EMERGENCY BUTTON
The EMERGENCY BUTTON is the
small red button located on top of the
radio near t he antenna. If this button is
programmed for emergency operation,
pressing it for at least one (1) second
will cause the radio to transmit GESTAR emer gency signaling. The "EMG"
status flag will turn on. GE-STAR is
transmit ted accordin g to one of several
different programmable methods. See
EMERGENCY OPERATION for details.
This button may also be programmed as a home mode button. if
programme d in this manner; pressing it
will switch operation to the programmed
home mode.
MENU BUTTON
Pressing the MENU button causes
the radio to scroll through up to six (6)
different menus programmed into the
7
radio. After the desired menu is displayed, the feature within the menu is
selected with the SEL button. The
menus that may be programmed are:
Menu Display Function Or Use
"CHANNEL" The MENU and SEL
buttons are programmed
for channel selection.
When this display appears, select the desired
channel with the SEL
button and then press
EXIT.
"MODE" The MENU and SEL
buttons are programmed
for mode selection.
When this display appears, select the desired
mode by pressing the
SEL button and then
press EXIT.
"PHONE" Allows selection of one
(1) of the ten (10) programmed telephone
numbers for automatic
dialing.
"KEYLOCK" Allows the keypad but-
tons to be locked or unlocked.
"SCAN A/D" Allows channels to be
added to or deleted from
the scan list for the current mode. The priorityone channel and the
priority-two channel are
also set within this
menu.
"ALERT" Allows the alert tones to
be disabled or enabled.
PRIVATE BUTTON
Private transmit mode is enabled or
disabled by pressing and releasing the
8
PVT button (when the menu mode is
not selected). When private transmit
mode is en abled, the "PVT" status flag
in the display will turn on.
If the radio is programmed for
forced private operation and the selected channel is programmed for private operation, "FRCD PVT" will be
displayed when PVT is pre ssed; private
transmit mode is not disabled. If the radio is programmed for forced private operation a nd the se lected channel is not
programmed for private operation, "VG
DISBL" will momentarily show in the
display when PV T is pressed; the radio
will not change to private mode.
EXIT BUTTON
Pressing the EXIT button will cause
the radio to exit the current menu display and return operation to the channel
curren tly selecte d. If the menu mode is
not enab led when the button is pressed,
pressi ng thi s button will tur n the display
and keypad backlighting on for thirty
(30) seconds (if the backlight is programmed on).
SCAN BUTTON
Pressing the SCAN button on the
keypad will toggle scan operation on
and off. When the radio is scanning, the
"SCN" status flag in the display will
show and all channels on the scan list
will be scanned. See SCANNING
CHANNELS for additional details.
Figure 2 - MPA Scan Model Keypad
SELECT BUTTON
Selecting different features within
each menu is accomplished with the
SEL button . First, the menu mode must
9
be enabled an d the desire d menu must
be chosen by pressing and releasing
the MENU button until the desired
menu appears in the display After the
menu is ch os e n, th e d es i red fu nc t io n or
feature is se lected by pr essing the SEL
button. For example, to disable or enable the aler t tones, press MENU until
"ALERT" is displayed then press SEL to
select "ENABLED"or "DISABLED", as
desired. Next press the EXIT button.
INDICATORS
The radio’s liquid crystal display
(LCD) located on the front panel has
eight (8) alphanumeric characters and
twelve (12) status flags. This display indicates the current operating channel
and it displays the menu information
when this mode is enabled. It also displays v arious other messages.
LCD backlighting will turn on for a
short period any time an acti ve button is
pressed or the CONTROL KNOB is ro-
Figure 3 - Liquid Crystal Display
tated. Backlighting may be programmed
to remain off at all times. Pressing the
EXIT button when the menu mode is
not enabled, will turn display and keypad backlighting on for thirty (30) seconds (if backlight programming is on).
The twelve (12) s t at us f lags located
along the top and bottom of the display
indicate operating status as follows:
EMG EMerGency mode - On indi-
cates emergency GE-STAR signaling has been initiated by the
user.
HI HIgh power transmit - On indi-
cates the selected channel has
10
been programmed for high
power transmit operation. Off indicates low power transmit.
T99 Type 99 tone decode-On indi-
cates Type 99 tone decoding is
enabled on the selected 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 indi c a t e s pri -
vate mode is enabled and the
radio will transmit encrypted
messages on the selected channel. Flashing indicates an encrypted message is being
received.
TX Transmitter enabled - On when
the radio is transmitting.
BSY BuSY - On indicates a carrier is
being received (the channel is
busy). Note that if the selected
channels programmed for Channel Guard ( CG), D igital Channel
Guard (DCG), or Type 99 (T99)
tone decode operation, the radio
may not unsquelch if a valid
tone(s) is not received; the BSY
status flag will be on.
CG Channel Guard - On indicates
tone Channel 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.
S Scan list - On indicates the se-
lected channel is on the scan
list.
1 priority 1 - On indicates the se-
lected channel is designated as
the priority-one scan channel.
11
2 priority 2 - On indicates the se-
lected channel is designated as
the priority-two scan channel.
SCN SCaN mode - On indicates the
radio is scanning.
UNIVERSAL DEVICE CONNECTOR
The Universal Device Connector
(UDC) is located on the sid e of the radio just above the PTT and MONITOR
BUTTONS. This connector provides
connections for the external accessories such as a headset, a speak er-m ik e ,
or an e merge ncy la nyard. When the radio is locked in a vehicular charger/repeater, the UDC provides the audio and
control connections between the radio
and the vehicul ar c harge r/r epe ater. The
UDC is also used by the maintenance
personnel when the radio is programmed.
ALERT T ONES
The M-PA uses alert tones or
"beeps" to indicate various operating
conditions. Alert tones may be enabled
or disabled via the menu mode if the
"ALERT" feature is programmed. See
"ALERT" MENU for details. The alert
tones may be disabled when the radio
is programmed.
CARRIER CONTROL TIMER
This feature, programmable on a
per channel basis, prevents unnecessary channel traffic and radio damage
in the event of a "stuck" mic. If the programmed timer times-out during a
transmission, the radio will sound an
aler t tone and disable the transmission.
The beepin g tone will continue until the
PTT BUTTON is released. Releasing
the PTT BUTTON resets the timer.
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