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LEVEL DIAGRAM
Receiver Section
Transmitter Section
ANT
L26~28
–122dBm
C93
C119
–123dBm
L42
1st Local
3R
–110.5dBm
–105.5dBm
R99
XF1
C125
R100
Q20
–118.5dBm
C146
–109dBm
IC2
16
9
102mVrms
23
19
45mVrms
IC205
IC207
IC208
2
4
2
1
SP
Q19
Q18
SG output level for obtaining 12dB/SINAD when injected to each point
IF 38.85MHz
AF 1kHz
through a 470pF coupling capacitor.
Modulate the AF level with a frequency of 1kHz and deviation of 1.5kHz
(Narrow),3kHz(Wide).Then take the signal from the signal generator
when the AF output has been adjusted to 0.63Vrms with the AF vol.
output when set to-53dBm and obtain the level shown on an AF VTVM
207mVrms
RF center
MIC
AF 1kHz
RF center
4
2
IC205
6
3
COMP
LIM
15mVrms
IC207
60.3mrms
54.9mrms
47.7mrms
C36
D8
VR201
L58
Q5
–18.9dBm
–1.4dBm
–5.7dBm
+3.2dBm
+10.6dBm
+20.9dBm
+31.4dBm
ANT 1W
Q6
C47
C53
D9
D10
C57
C56
C65
C189
C89
Q7
Q8
Q9
Q10
To make measurements in the AF section,connect the AC level meter.
In the RF section, use a 1000pF coupling capacitor.
AG is set to the MIC input becomes 3.0kHz DEV. at 1kHz.
Содержание TK-3130 - ProTalk XLS UHF
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