TK-3102G
36
LEVEL DIAGRAM
Receiver Section
T
ransmitter Section
SG output level for obtaining 12dB / SINAD when injected to each
point through a 470pF coupling capacitor
.
Measure the 1st Local level on a RF VTVM.
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
output
when
set
to
-53dBm
and
obtain
the
level shown on an AF VTVM when the AF output has been ad-
justed to 0.63V
rms with the AF vol.
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.
RF (Center frequency)
IF (38.85MHz)
AF (1kHz)
ANT
L1
12
C145
L208
5R
Q203
L203,
L214
Q202
R239
XF201
1st Local
0.1V
rms
R210
Q201
C212
C228
C264
C263
IC200
16
95
7
IC300
AF VR
41
0
IC302
Q307
SP
-116.5dBm
-113dBm
-98dBm
-103dBm
-104dBm
-106.5dBm
-103dBm
108
mV
rms
175mV
rms
23.5mV
rms
0.63V
rms
C49
