Tait TM9100 - RF Voltages Along Initial RF Signal Path of VHF Radio (B1 Band); RF Voltages Along Initial RF Signal Path of UHF Radio (H5 Band)

296 Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual
© Tait Electronics Limited August 2005
Table 11.8 RF voltages along the initial RF signal path of the VHF radio (B1 band)
Power
level (W)
Frequency
(MHz)
RF voltages (V)
Synthesizer
output
Exciter
stage 1
Exciter
stage 2
Exciter
stage 3
Driver
output
10 136
155
174
0.3 ± 0.1
0.3 ± 0.1
0.2 ± 0.1
0.6 ± 0.2
0.6 ± 0.2
0.7 ± 0.2
2.7 ± 0.5
2.2 ± 0.5
1.7 ± 0.5
4.0 ± 0.5
3.7 ± 0.5
4.0 ± 0.5
9.9 ± 0.5
8.4 ± 0.5
8.4 ± 0.5
15 136
155
174
0.3 ± 0.1
0.2 ± 0.1
0.2 ± 0.1
0.6 ± 0.2
0.6 ± 0.2
0.7 ± 0.2
2.7 ± 0.5
2.2 ± 0.5
1.7 ± 0.5
4.0 ± 0.5
3.7 ± 0.5
4.0 ± 0.5
11.8 ± 0.5
10.0 ± 0.5
10.0 ± 0.5
25 136
155
174
0.3 ± 0.1
0.2 ± 0.1
0.2 ± 0.1
0.6 ± 0.2
0.6 ± 0.2
0.7 ± 0.2
2.7 ± 0.5
2.2 ± 0.5
1.7 ± 0.5
4.0 ± 0.5
3.7 ± 0.5
4.0 ± 0.5
14.3 ± 0.5
13.5 ± 0.5
14.7 ± 0.5
50 136
155
174
0.3 ± 0.1
0.2 ± 0.1
0.2 ± 0.1
0.6 ± 0.2
0.6 ± 0.2
0.7 ± 0.2
2.7 ± 0.5
2.2 ± 0.5
1.7 ± 0.5
4.0 ± 0.5
3.7 ± 0.5
4.0 ± 0.5
15.6 ± 0.5
15.0 ± 0.5
15.6 ± 0.5
70 136
155
174
0.3 ± 0.1
0.2 ± 0.1
0.3 ± 0.1
0.6 ± 0.2
0.6 ± 0.2
0.7 ± 0.2
2.7 ± 0.5
2.2 ± 0.5
1.7 ± 0.5
4.0 ± 0.5
3.7 ± 0.5
4.0 ± 0.5
24.5 ± 0.5
29.0 ± 0.5
22.0 ± 0.5
Table 11.9 RF voltages along the initial RF signal path of the UHF radio (H5 band)
Power
level (W)
Frequency
(MHz)
RF voltages (V)
Synthesizer
output
Exciter
stage 1
Exciter
stage 2
Exciter
stage 3
Driver
output
10 400
435
470
0.3 ± 0.1
0.4 ± 0.1
0.3 ± 0.1
1.2 ± 0.2
2.4 ± 0.2
1.1 ± 0.2
4.2 ± 0.5
2.7 ± 0.5
2.1 ± 0.5
9.2 ± 0.5
6.8 ± 0.5
4.8 ± 0.5
3.0 ± 0.5
2.9 ± 0.5
2.0 ± 0.5
15 400
435
470
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
1.2 ± 0.2
2.4 ± 0.2
1.1 ± 0.2
4.2 ± 0.5
2.7 ± 0.5
2.1 ± 0.5
9.2 ± 0.5
6.8 ± 0.5
4.8 ± 0.5
4.1 ± 0.5
3.8 ± 0.5
2.5 ± 0.5
20 400
435
470
0.4 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
1.2 ± 0.2
2.4 ± 0.2
1.1 ± 0.2
4.2 ± 0.5
2.7 ± 0.5
2.1 ± 0.5
9.2 ± 0.5
6.8 ± 0.5
4.8 ± 0.5
4.8 ± 0.5
4.2 ± 0.5
3.0 ± 0.5
40 400
435
470
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
1.2 ± 0.2
2.4 ± 0.2
1.1 ± 0.2
4.2 ± 0.5
2.7 ± 0.5
2.1 ± 0.5
9.2 ± 0.5
6.8 ± 0.5
4.8 ± 0.5
4.6 ± 0.5
4.0 ± 0.5
2.9 ± 0.5
60 400
435
470
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
1.2 ± 0.2
2.4 ± 0.2
1.1 ± 0.2
4.2 ± 0.5
2.7 ± 0.5
2.1 ± 0.5
9.2 ± 0.5
6.8 ± 0.5
4.8 ± 0.5
8.1 ± 0.5
7.3 ± 0.5
5.3 ± 0.5