Motorola ASTRO SPECTRA Service Manual

February 3, 2003 6881076C20-E
5-6 Performance Checks: Receiver Performance Checks
Figure 5-4. Pushbutton Control Head Key-Closure Displays (W5 and W7)
Figure 5-5. Pushbutton Control Head Key-Closure Displays (W9)
4. Switch the radio power off temporarily to exit the test mode and return to normal radio
operation.
5.4 Receiver Performance Checks
Table 5-4. Receiver Performance Checks
Test Name System Analyzer Radio Test Condition Comments
Reference
Frequency
Mode: PWR MON
1st channel test frequency*
Monitor: Frequency error
Input at RF In/Out
TEST MODE,
1 CSQ output
at antenna
Press and hold
PTT switch.
Frequency error to be
± 70 Hz (VHF)
± 150 Hz (UHF)
± 150 Hz (800 MHz)
Rated Audio Mode: GEN
Output level: 1.0mV RF
1st channel test frequency*
Mod: 1 kHz tone at 3 kHz
deviation
Monitor: DVM: ac Volts
TEST MODE,
1 CSQ
Release PTT
switch.
Set volume control to
6.3 Vrms across the
speaker
Distortion As above, except to distortion TEST MODE,
1 CSQ
Release PTT
switch.
Distortion < 3.0%
O #Del Rcl
Mode
Vol
Mic
Phon
Call Sel
PWR
Scan
XMIT
BUSY
DIM
HOME
12
3
4
Sts
5
6
Msg
7 H/L
8 Mon
9 Dir
MAEPF-24120-A
KEY 97
KEY 82
KEY 99
KEY 100
KEY 101
KEY 102
KEY 103
KEY 81
KEY 54
KEY 49
KEY 50
KEY 52
KEY 55
KEY 58
KEY 51
KEY 53
KEY 56
KEY 57
KEY 48
KEY 59
MIC PTT: KEY 01
MIC HUB*: KEY 06
IGN SENSE: KEY 07
* TAKE MIC OFF HOOK
VIP IN 1: KEY 16
VIP IN 2: KEY 17
VIP IN 3: KEY 18
KEY 96
KEY 80
KEY 83
PR
12/1/93
EH
12/1/93
PR
5/9/94
JP
5/9/94
XMIT BUSY
123
456
789
0
DIM
Pri
Non
Pri
Emer Dir
Scan
Call
Mode Vol Sel
Home
Page Rpgm
Site
Phon H/L Lock
Rcl Sql
Del
Sts Msg
Srch
KEY 54
KEY 100
KEY 99
KEY 103
KEY 104
KEY 52
KEY 49
KEY 50
KEY 51
KEY 59
KEY 53
KEY 101
KEY 102
KEY 58
KEY 48KEY 55
KEY 57
KEY 56
KEY 97KEY 83
KEY 96
KEY 81
KEY 80
KEY 82

Motorola ASTRO SPECTRA Specifications

General

Frequency Range	136-174 MHz, 403-470 MHz
Number of Channels	Up to 255
Channel Spacing	12.5 kHz, 20 kHz, 25 kHz
Modulation	FM
Operating Temperature	-22°F to +140°F (-30°C to +60°C)