TK-2102G
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
obtain
a
moduration
factor
of
60%
with
the
transmit frequency at center and a modulation frequency of 1kHz.
ANT
L114
C137
C262
L208, L209,
L210
5R
Q203
R217
L203,
L214
Q202
R211
XF200
1st Local
0.1V
rms
R210
Q201
C212
IC200
16
95
7
IC300
AF VR
41
0
IC302
Q307
SP
RF (Center frequency)
IF (38.85MHz)
AF (1kHz)
-116dBm
-112.5dBm
-100dBm
-103.5dBm
-107dBm
-107dBm
-105dBm
113mV
rms
185mV
rms
23.5mV
rms
0.63V
rms
MIC
21
6
7
IC500
VR501
D5
C34
Q4
Q6
C44
C100
Q100
Q101
C104
C109
Q102
C116
Q105
ANT
5.0W
AF VTVM
RF VTVM
12mV
rms 390mV
rms
120mV
rms
0.16V
rms
0.17V
rms
0.53V
rms
