Tait TM8110

248 Receiver Fault Finding TM8100/TM8200 Service Manual
© Tait Electronics Limited June 2006
Table 10.2 Front-end tuning voltages and corresponding DAC values
Frequency band
Tuning voltages at five different frequencies
FE TUNE0 FE TUNE1 FE TUNE2 FE TUNE3 FE TUNE4
A4 band
Frequency (MHz)
DAC value
Voltage (V)
65.9
0 to 40
0 to 0.47
72.1
89 ± 15
1.05 ± 0.18
77.1
134 ± 15
1.58 ± 0.18
82.1
173 ± 15
2.04 ± 0.18
88.1
218 ± 15
2.56 ± 0.18
B1 band
Frequency (MHz)
DAC value
Voltage (V)
135.9
37 ± 20
0.44 ± 0.24
145.1
88 ± 15
1.04 ± 0.18
155.1
136 ± 15
1.60 ± 0.18
164.1
174 ± 15
2.04 ± 0.18
174.1
210 ± 15
2.57 ± 0.18
C0 band
Frequency (MHz)
DAC value
Voltage (V)
173.9
41 ± 20
0.48 ± 0.24
187.1
104 ± 15
1.22 ± 0.18
200.1
149 ± 15
1.75 ± 0.18
213.1
187 ± 15
2.20 ± 0.18
225.1
220 ± 15
2.59 ± 0.18
D1 band
Frequency (MHz)
DAC value
Voltage (V)
215.9
42 ± 20
0.5 ± 0.2
228.1
103 ± 15
1.2 ± 0.18
241.1
151 ± 15
1.7 ± 0.18
253.1
187 ± 15
2.2 ± 0.18
266.1
224 ± 10
2.6 ± 0.12
H5 band
Frequency (MHz)
DAC value
Voltage (V)
399.9
0 to 36
0 to 0.43
417.1
94 ± 15
1.11 ± 0.18
435.1
106 ± 15
1.25 ± 0.18
452.1
156 ± 15
1.84 ± 0.18
470.1
191 ± 15
2.25 ± 0.18
H6 band
Frequency (MHz)
DAC value
Voltage (V)
449.9
41 ± 20
0.48 ± 0.24
470.1
91 ± 15
1.07 ± 0.18
490.1
134 ± 15
1.58 ± 0.18
510.1
176 ± 15
2.07 ± 0.18
530.1
210 ± 15
2.47 ± 0.18