TK-3501
28
FM IF
SYSTEM
DAC
SSG
–53dBm
50
Ω
ANT
–62.5dBm
–60.0dBm
–59.7dBm
–46.1dBm
–53.2dBm
–46.4dBm
–63.0dBm
–32.0dBm
136m
V
rms
22.6m
V
rms
2.36
V
rms
2.32
V
rms
2.05
V
rms
C250
C244
C240
C274
C224
C221
C216
C328
R345
C302
EXT-SP 500mW
Q306
Q302
IC302
IC300
IC200
Q202
XF200
MIXER Q203
Q204
RF (CENTER FREQUENCY)
IF1 (38.85MHz)
IF2
450kHz
AF (1kHz)
IC300
DAC
AF AMP
C29
VCO
C33
C42
8.1dBm
C112
11.4dBm
C127
22.0dBm
ANT
50
Ω
MIC
15.1m
V
rms
55m
V
rms
19.7dBm
0dBm
C108
Q5
Q6
RXLo
D200
D100
Q101
Q102
AF (1kHz)
RF (CENTER FREQUENCY)
R313
Q4
+
8Ω
LEVEL DIAGRAM
To mak
e measurements in the AF section, connect the A
C le
vel meter
.
Set AF v
olume at 500mW of the e
xter
nal speak
er output.
(ANT input:
–53dBm,1kHz FM, 1.5kHz De
v (Narro
w).)
In the RF section, use a high impedance probe
. (ANT input:
–53dBm, MOD off).
A
G is set to the MIC input becomes 1.5kHz De
v, at 1kHz MOD
. (Narro
w)
To mak
e measurements in the AF section, connect the A
C le
vel meter
.
In the RF section, use a 1000pF coupling capacitor
.
Receiver Section
Transmitter Section
