Ericsson AEGIS EDACS M-PA LBI-33056 Maintenance Manual
Maintenance Manual
LBI-33056
AEGISTM EDACS® M-PA
UHF PORTABLE RADIO
TM
ericssonz
TABLE OF CONTENTS
Rear Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . LBI-38383
Front Cove r Assembly ( La ter) . . . . . . . . . . . . . . . . . . . LBI-38834
Control Boa rd . . . . . . . . . . . . . . . . . . . . . . . . . . . LBI-39157
Service Section . . . . . . . . . . . . . . . . . . . . . . . . . . . LBI-33057
LBI-33056
TABLE OF CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Trunked Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Conventional Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
General Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rear Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Front Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Battery Packs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Universal Device Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
OPERATOR MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
OPERATING TIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
INTRINSICALLY SAFE USAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Battery Packs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
ILLUSTRATIONS
Figure 1 - Syste m Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3 - Select Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 2 - Scan Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 4 - Side Vie w (All Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 5 - Options And Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 6 - UDC Pin-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 1 - UHF Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 2 - UDC Pin Func ti ons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
T a ble 3 - Operator Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Page
This manual cove rs Eri c sson and Gene ra l Elect ric pro duc ts m an ufa ctured and sold by Ericsson In c.
Repairs to this equipment should be made only by an authorized service technician or facility designated by the supplier.
Any repairs, alterations or substitution of recommended parts made by the user to this equipment not approved by the
manufac tu re r could void the user’s aut hor it y to oper ate the eq uip me nt in additi on t o the man ufacturer’ s warranty .
The software contained in this device is copyrighted by Ericsson Inc. Unpublished rights are reserved under the copyright
laws of the Unit ed Sta te s.
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 by Ericsson 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.
Copyright ©April 1995, Ericsson Inc.
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NOTICE!
NOTE
NOTICE!
SPECIFICATIONS *
GENERAL
Frequency Ra ng e 485-505 MHz
Frequenc y St ab il it y 2.5 ppm
Channel Spacing 12.5 kHz
Operating Temperature Range -20°C to +55°C
Maxim um Relat ive Humid ity 90% at 55 °C
Batte ry Voltage 7.5 Vdc ( nominal)
Dimensions (H x W x D)
less battery, knobs and antenna 140 x 69 x 38 mm (5.52 x 2.72 x 1.50")
with Extra High Cap. Battery 232 x 69 x 40 mm (9.15 x 2.72 x 1.58")
Weight
less battery 585 grams (20.6 ounces)
with Extra High Cap. Battery 952 grams (33.6 ounces)
LBI-33056
TRANSMITTER
High/Low RF Power Out put 3 W a tts / 1 Watt (programmable on a per syst em or chan ne l
basis)
Maximum Fre que ncy Separa ti on 20 MHz (no degradation)
FM Deviation ±2.5 kHz
FM Hum and Noise -40dB (companion receiver)
Spurious and Ha rmonic Emission s -65 dBc
Audio Response +1 to -3dB (6 dB/octave pre-emphasis from 300 Hz to 3 kHz)
Audio Distortion less than 3% (at 1000 Hz tone, 3 kHz devi atio n)
RECEIVER
Sensitivity (12 dB SINAD) -116 dBm (0.3 5 mV)
Maximum Fre que ncy Separa ti on 20 MHz (no degradation)
Selectivity at 12.5 kHz
485 - 505 MHz -60 dB
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LBI-33056
SPECIFICATIONS * (Continued)
Critical Squelch 10 dB SINA D
Intermodulation
485 - 505 MHz -70 dB
Spurious and Image Rejection -75 dB
Audio Output 500 mW (24-ohm load impedance)
Audio Response +2 to -8 dB (6 dB/octave de -em pha sis from 300 Hz to 3 kHz)
Audio Distortion less than 5% (at 500 mW )
AEGIS SYSTEM
Voice Modes clear , digi tal and pr ivat e (must be equippe d wi th an
encrypt /d ecrypt option to ope ra te in pr iva t e mode )
Vocoding Me tho d adapti ve mu lt iba nd enc od ing (sub-band cod ing in Voice Guard
mode)
Outside Addre ssing 144 available
Digital Signal ling continuous in digi tal or privat e mode
Data Rate 9600 baud
Digital/Priva te Mode Pe rfo rman ce assured acquisition at 12 dB SINAD (SINAD measured in
clea r mo de)
Digital/Priva te Mode Rang e equal to clear mode
Automatic Receive Operation automatically switches to the correct mode based on the
presence of digital sync
CRYPT O G RAP HIC (OP TIONAL)
Encrypt io n Technique
non-linear prod uc t/blo ck transfor ma tion
Key Permutations
1.8 x 1019 (ef fe ctively 3.4 x 1038 w ith CUE codes)
Key Storage
EEPROM (permanent unless overwritten)
Key Storage Loca tion
EEPROM loca ted on Contr ol Bo ard
* These specifications ar e inte nd ed prima ri ly for the use of the service m an. See the appr opri a te Spec ific atio ns Shee t for th e
comp lete specification s.
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LBI-33056
INTRODUCTION
The Aegis EDACS M-PA radio is a high quality microprocessor controlled synthesized portable two-way FM radio. The unit complements the Aegis EDACS trunked
system by providing a small, rugged, easy to operate and
easy to program portable radio for the UHF trunking environment. The radio also provides conventional communications in the UHF spectrum. M-PA operation is highlighted
by its programming versatility. This allows tailored operation of the portable radio to meet the needs of the radio system and the individual users. The Aegis EDACS M-PA
radio meets or exceeds all of th e APCO 16 portable radio
equipment requirements for digitally trunked and conventional commu n ic ations.
Aegis digital signals provide improved weak signal performance and impedance to unauthorized monitoring. Radios equipped with an encrypt/decrypt option offer very
secure communic ati ons when op erating in priva t e m ode . MPA radios equipped with an encrypt/decrypt option can operate in three (3) different voice modes. The voice modes
are: clear (analog), Aegis digital and private. Systems programmed for private mode operation are programmed for
either Aegis enc ry pt/de c rypt ope rati on. A radio not equip pe d
with an encrypt/decrypt option can operate only in clear
(analog) mode and Aegis dig it al mode.
An Aegis EDACS M-PA radio’s voice mode is programmed on a per group or per channel basis. For example,
each trunked group can be programmed for either clear
mode or Ae gis digital mode operatio n and the radio operates
in the programmed mode when the group is selected. If the
radio is equipped with an encrypt/decrypt option the voice
mode is also progra mme d on a per group/c ha nn el basis.
Three (3) differe nt M- PA radio models are avai la bl e: Se lect, Scan and Sys tem.
The M-PA Select model radio is the basic version that
can be programmed with up to sixteen (16) independent
trunked groups and/or conventional channels. This unit features an eight-digit alphanumeric liquid crystal display
(LCD) and a 16-position knob for group/channel selection.
The display is backlit for nighttime and low-level ambient
light ope ration.
Scan and System model radios have an LCD similar to
the Select model radio. A keypad is added to these radios (4button on Scan model, 16-button on System model) to provide additional features not available on the Select model
radio. These radios can be programmed with up to fifty (50)
systems with sixteen (16) groups in each, or sixteen (16)
systems with fifty (50) groups in each. In addition, up to
forty-eight (48) conventional channels and ninety-nine (99)
special calls can be programmed. Special calls include individual and telephone interconnec t call s. A System mo de l ra dio also allows storage of ten (10) operator-entered
telephone numbers and ten (10) radio ID numbers. These
numbers can be recalled at will and initiated. Manually dialled telephone interconnect calls and conventional mode
DTMF dialing is also provided by the System model’s 16button keypad. Both the Sca n and Syst em mode l ra di os pro vide scan capability.
TRUNKED FEATURES
• Programmable Multiple System Capability - The
radio can operate on different trunked sites or on
different systems on the same site. Scan and System
model radios can be programmed with a maximum of
fifty (50) systems with a maximum of sixteen (16)
groups in each system. A Select model radio can be
programmed wit h a maxi mu m of sixtee n (16 ) syste ms
with one group in eac h.
• Programmable Multiple Group Capability - The
radio can communicate with many groups within a
system. Scan and System model radios can be
programmed with a maxim um of fifty (50) groups per
system. If the Control Knob is programmed for group
selection, up to sixteen (16) groups can be selected
and system selection (50 maximum) is accomplished
with the STEP button on the keypad. If the Control
Knob is programmed for system selection, up to
sixteen (16) systems can be selected and then up to
fifty (50) groups can be selected via the STEP button.
In a Select model radio, a maximum of s ixteen (16)
groups (from one or more systems) can be programmed and selec t ed with the Control Knob.
• P rogrammable Group Call Capability - The radio
can simultaneously call all units within a group.
• Special Call Mode - Scan and System model radios
can initiate special calls. These calls include
individual and telephone interconnect calls. Up to
ninety-nine (99) special calls can be programmed into
the radio. Special calls cannot be programmed into a
Select model radio; therefore, these radios cannot
initiate special calls.
• Remote Dynamic Regrouping Capability - The
dispatch center can regroup radios for multi-agency
communications.
• Remote Disable - If lost or stolen, the radio can be
remotely disabl ed by the System Ma nage r.
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