
- 34 -
SSG output level for obtaining 12dB/SINAD when injected to each point Modulate the AF level with a frequency of 1KHz and deviation of 1.5KHz(Narrow),
through a 470pF coupling capacitor. 3KHz (Wide). Then take the signal from the signal generator When the AF output
Measure the 1
st
Local level on a RF VTVM. has been adjusted to 0.63Vrms with the AF vol.
-103dBm
-104dBm
-106.5dBm
-103dBm
1018mVrms
175mVrms
23.5mVrms
0.63Vrms
SP
IC302
IC300
IC200
Q201
XF200
L203,L214
L208
-116.5dBm
ANT
L114
-113dBm
5R
-98dBm
1st Local
0.1Vrms
RF
IF 38.85MHz
center
AF 1kHz
Q203
Q202
Q307
C137
C212
R217
R211
R210
VR
L221
Rx Section
RPV516 Level Diagram
Measure the audio frequency on an AF VTVM and radio frequency on a RF VTVM at high impedance . Set the MIC input to obtain a modulation factor of 60% with the transmit
frequency at center and a modulation frequency of 1KHz.
MIC
VR501
C34
D5
Q4
Q100
C100
Q6
Q101
C104
Q102
C116
Q105
ANT
IC500
12mVrmS
390mVrms
120mVrms
0.16Vrms
0.44Vrms
0.8Vrms
4.5W
AF VTVM
RF VTVM
Tx Section
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Содержание RPU416
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