Tait TM8000 Series

TM8100 Mobile Radio Service Manual Diagnosis of Faults on Main Board 227
May 2004 © Tait Electronics Limited
Table 9.9 RF voltages along the initial RF signal path of the VHF radio (D1 band)
Power level
(W)
Frequency
(MHz)
RF voltages (V)
Synthesizer
output
Buffer
output
Exciter
output
Driver
output
1 216
241
266
0.3 ± 0.1
0.4 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
3.8 ± 0.5
3.7 ± 0.5
3.5 ± 0.5
1.3 ± 0.5
1.0 ± 0.4
2.3 ± 0.9
5 216
241
266
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
3.3 ± 0.5
3.2 ± 0.5
3.6 ± 0.5
3 ± 1
3 ± 1
6 ± 2
12 216
241
266
0.4 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.2 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
3.3 ± 0.5
3.6 ± 0.5
3.2 ± 0.5
4 ± 2
4 ± 2
9 ± 4
26 216
241
266
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
3.8 ± 0.5
3.5 ± 0.5
3.4 ± 0.5
4 ± 2
5 ± 2
12 ± 5
40 216
241
266
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.2 ± 0.1
3.3 ± 0.5
3.3 ± 0.5
3.6 ± 0.5
12 ± 5
9 ± 4
20 ± 8
Table 9.10 RF voltages along the initial RF signal path of the UHF radio (H5 and H6 bands)
Power level
(W)
Frequency
(MHz)
RF voltages (V)
Synthesizer
output
Buffer
output
Exciter
output
Driver
output
1 450
490
530
0.2 ± 0.1
0.2 ± 0.1
0.2 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.4 ± 0.1
4.5 ± 0.5
4.6 ± 0.5
3.9 ± 0.5
2.3 ± 0.5
1.5 ± 0.5
0.8 ± 0.5
5 450
490
530
0.2 ± 0.1
0.2 ± 0.1
0.2 ± 0.1
0.3 ± 0.1
0.4 ± 0.1
0.4 ± 0.1
4.6 ± 0.5
4.6 ± 0.5
3.6 ± 0.5
3.6 ± 0.5
2.6 ± 0.5
1.2 ± 0.5
12 450
490
530
0.2 ± 0.1
0.2 ± 0.1
0.2 ± 0.1
0.2 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
3.9 ± 0.5
4.0 ± 0.5
3.4 ± 0.5
4.5 ± 0.5
3.9 ± 0.5
1.7 ± 0.5
26 450
490
530
0.2 ± 0.1
0.1 ± 0.1
0.1 ± 0.1
0.2 ± 0.1
0.2 ± 0.1
0.2 ± 0.1
3.8 ± 0.5
3.6 ± 0.5
3.0 ± 0.5
4.6 ± 0.5
4.5 ± 0.5
1.8 ± 0.5
40 450
490
530
0.2 ± 0.1
0.2 ± 0.1
0.2 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
0.3 ± 0.1
4.2 ± 0.5
3.6 ± 0.5
3.2 ± 0.5
8.6 ± 0.5
8.2 ± 0.5
2.5 ± 0.5