33
TK-2107
ANT
L1
14
C137
L208, L209,
L210
5R
Q203
R217
L203,
L214
R224
Q202
R21
1
XF200
1st Local
0.1V
rms
R210
Q201
C212
IC200
16
95
7
IC300
AF VR
41
0
IC302
Q307
SP
RF center
IF 38.85MHz
AF 1kHz
-1
16dBm
-1
12.5dBm
-100dBm
-103.5dBm
-107dBm
-107dBm
-105dBm
1
13mV
rms
185mV
rms
23.5mV
rms
0.63V
rms
MIC
21
6
7
IC500
VR501
D5
C34
Q4
Q6
C100
Q100
Q101
C104
C109
Q102
C1
14
Q105
ANT
9.0W
AF
VTVM
RF
VTVM
12mV
rms
390mV
rms
120mV
rms
0.16V
rms
0.17V
rms
0.53V
rms
0.62V
rms
C1
16
Q105
C44
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.
LEVEL DIAGRAM
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 adjusted to 0.63Vrms 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.
RX section
TX section
