Motorola GM300 Series Basic Service Manual - Page 38
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4-4
Test
Test
Channel
Mode
Low Power
TX
1
RX
1
TX
2
RX
2
TX
3
RX
3
TX
4
RX
4
TX
5
RX
5
TX
6
RX
6
TX
7
RX
7
Test Name
Reference
Mode: PWR MON
Frequency
4th channel test
frequency*
Monitor: Frequency
error
Input at RF In/Out
Power RF
As above
Table 4-4 Test Frequencies
Test
Channel
High Power
8
8
9
9
10
10
11
11
12
12
13
13
14
14
Table 4-5 Transmitter Performance Checks
Communications
Analyzer
VHF
UHF
136.025
403.025
136.050
403.050
142.325
414.150
142.350
414.175
148.625
425.325
148.650
425.350
154.975
436.475
155.025
436.525
161.225
447.650
161.250
447.675
167.525
458.825
167.550
458.850
173.950
469.950
173.975
469.975
Radio
TEST MODE,
PTT to
Test Channel 4
continuous
carrier squelch
(during the
performance
check)
As above
As above
TRANSCEIVER PERFORMANCE TESTING
LB1
LB2
29.725
36.025
29.750
36.050
30.225
37.125
30.325
37.225
31.025
38.225
31.125
38.325
32.125
39.125
32.225
39.225
33.025
40.225
33.125
40.325
34.225
41.025
34.325
41.125
35.950
41.950
35.975
41.975
Test Set
Comment
Frequency error:
±150 Hz VHF,
±150 Hz UHF
±150 Hz LB
Low Power:
0.8-1.4W
High Power:
25-30W
(VHF 403-470MHz).
Low Power:
40-47W
High Power:
60-70W
(LB)
LB3
42.025
42.050
43.225
43.125
44.525
44.425
46.125
46.025
47.525
47.425
48.125
48.025
49.950
49.975