Tait TM8100 mobiles, Service Manual

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384 Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual
© Tait Electronics Limited November 2007
Table 12.11 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 12.12 RF voltages along the initial RF signal path of the UHF radio (H5 and H6 bands)
Power level (W) Frequency (MHz) RF voltages (V)
H5
band H6
band Synthesizer
output Buffer
output Exciter
output Driver
output
1 400
435
470
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
5 400
435
470
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
12 400
435
470
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
26 400
435
470
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
40 400
435
470
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