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Motorola ASTRO SPECTRA Service Manual

Motorola ASTRO SPECTRA
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Index-iii
6881076C20-E February 3, 2003
small .................................................................. 11-10
R
radio
descriptions ...........................................................1-1
features .................................................................1-2
information screen ...............................................6-14
upgrading with FLASHport .................................... 1-2
reassembly
command board ..................................................8-17
dash control-head board .....................................8-17
power amplifier .................................................... 8-16
W3 hand-held control head ................................. 8-17
receiver
front-end board replacement ...............................8-13
performance checks .............................................. 5-6
troubleshooting ......................................................9-9
reference oscillator
alignment
RSS ................................................................... 6-3
tuner ................................................................6-14
alignment screen
RSS ................................................................... 6-4
tuner ................................................................6-15
remote control-head board replacement ...................8-5
remote W3 Y cable limitations .................................. 4-6
remote-mount vehicle interface port ......................... 3-4
replacement parts, ordering ......................................A-1
replacing
command board .................................................. 8-11
control-head boards ..............................................8-2
interconnect board ................................................8-6
power amplifier board ............................................ 8-7
receiver front-end board ...................................... 8-13
remote control-head board .................................... 8-5
RF board ............................................................. 8-15
VCO board .......................................................... 8-14
VOCON board ..................................................... 8-11
RF board
replacement ........................................................ 8-15
theory of operation ................................................3-5
RF exposure compliance information ...........................ii
RF test mode ............................................................5-3
RIB power-up recommendations .............................. 4-6
RSS
alignment
reference oscillator ............................................6-3
transmit current limit ..........................................6-6
transmit deviation balance (compensation) ....... 6-7
transmit deviation limit ....................................... 6-8
transmit power ...................................................6-4
bit error rate (BER) performance check .............. 6-10
radio alignment introduction .................................. 6-1
screen
reference oscillator alignment ............................ 6-4
transmit current limit alignment .......................... 6-6
transmit deviation balance (compensation)
alignment .................................................... 6-8
transmit deviation limit alignment ....................... 6-9
transmit power alignment ...................................6-5
service menu layout ..............................................6-2
S
screen
RSS
reference oscillator alignment ........................... 6-4
service menu ..................................................... 6-2
transmit current limit alignment ......................... 6-6
transmit deviation balance (compensation)
alignment .................................................... 6-8
transmit deviation limit alignment ...................... 6-9
transmit power alignment .................................. 6-5
tuner
bit error rate (BER) test ................................... 6-23
menu ............................................................... 6-12
radio information .............................................. 6-14
reference oscillator alignment ......................... 6-15
transmit current limit alignment ....................... 6-18
transmit deviation balance (compensation)
alignment .................................................. 6-20
transmit deviation limit alignment .................... 6-21
transmit power alignment ................................ 6-16
transmitter test pattern .................................... 6-23
typical softpot adjustment ................................ 6-13
secure operation, key-variable loader ...................... 7-2
secure status annunciator ........................................ 7-1
service aids, recommended ...................................... 4-2
service menu layout, RSS ........................................ 6-2
signaling types .......................................................... 5-5
smart RIB power-up considerations ......................... 4-6
softpot
adjustment screen (tuner) ................................... 6-13
use ........................................................................ 6-2
values .................................................................... 6-2
specifications
800 MHz ............................................................xxxviii
UHF ....................................................................xxxvii
VHF .....................................................................xxxvi
status LEDs, control head ........................................ 3-3
synthesizer troubleshooting .................................... 9-12
T
test
equipment, recommended .................................... 4-1
frequencies ........................................................... 5-4
setup, performance checks ................................... 5-1
test mode
control-head .......................................................... 5-5
displays ................................................................. 5-2
performance checks .............................................. 5-2
RF ......................................................................... 5-3
theory of operation
command board .................................................... 3-6
control head .......................................................... 3-2
front-end receiver assembly .................................. 3-5
overview ................................................................ 3-1
power amplifier ...................................................... 3-4
RF board ............................................................... 3-5
VOCON board ....................................................... 3-7
voltage-controlled oscillator .................................. 3-6
tools, recommended ................................................. 4-2
torque values, fastener ........................................... 8-18
trademark information ...................................................ii
transmit

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Motorola ASTRO SPECTRA Specifications

General IconGeneral
Frequency Range136-174 MHz, 403-470 MHz
Number of ChannelsUp to 255
Channel Spacing12.5 kHz, 20 kHz, 25 kHz
ModulationFM
Operating Temperature-22°F to +140°F (-30°C to +60°C)

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