4-4
TRANSCEIVER PERFORMANCE TESTING
Table 4-4 Test Frequencies
Test
Mode
Test
Channel
Low Power
Test
Channel
High Power
VHF
UHF
LB1
LB2
LB3
TX
1
8
136.025
403.025
29.725
36.025
42.025
RX
1
8
136.050
403.050
29.750
36.050
42.050
TX
2
9
142.325
414.150
30.225
37.125
43.225
RX
2
9
142.350
414.175
30.325
37.225
43.125
TX
3
10
148.625
425.325
31.025
38.225
44.525
RX
3
10
148.650
425.350
31.125
38.325
44.425
TX
4
11
154.975
436.475
32.125
39.125
46.125
RX
4
11
155.025
436.525
32.225
39.225
46.025
TX
5
12
161.225
447.650
33.025
40.225
47.525
RX
5
12
161.250
447.675
33.125
40.325
47.425
TX
6
13
167.525
458.825
34.225
41.025
48.125
RX
6
13
167.550
458.850
34.325
41.125
48.025
TX
7
14
173.950
469.950
35.950
41.950
49.950
RX
7
14
173.975
469.975
35.975
41.975
49.975
Table 4-5 Transmitter Performance Checks
Test Name
Communications
Analyzer
Radio
Test Set
Comment
Reference
Frequency
Mode: PWR MON
4th channel test
frequency*
Monitor: Frequency
error
Input at RF In/Out
TEST MODE,
Test Channel 4
carrier squelch
PTT to
continuous
(during the
performance
check)
Frequency error:
±150 Hz VHF,
±150 Hz UHF
±150 Hz LB
Power RF
As above
As above
As above
Low Power:
0.8-1.4W
High Power:
25-30W
(VHF 403-470MHz).
Low Power:
40-47W
High Power:
60-70W
(LB)
Содержание GM140
Страница 1: ...Professional Radio GM300 Series Basic Service Manual 68P64115B51 Issue July 2000 ...
Страница 16: ...2 6 MODEL CHART AND TEST SPECIFICATION ...
Страница 44: ...5 4 RADIO TUNING AND PROGRAMMING ...
Страница 46: ...6 2 POWER UP SELF TEST ...