Level Diagram - Kenwood TK-8160 Service Manual

TK-8160
Receiver Section
W : –120.5dBm
N : –120.0dBm
ANT
BPF
Transmitter Section
Display
Unit
X54-351
MIC
To make measurements in the AF section, connect the AC level meter.
AG is set so that MIC input becomes 3kHz/1.5kHz (Wide/Narrow) DEV at 1kHz MOD.
46

LEVEL DIAGRAM

Center Frequency
W : –121.0dBm W : –108.0dBm
N : –121.0dBm N : –107.0dBm
Q353
D
G2
BPF
G1 S
W/N
5.0mVrms
W/N W/N
0.18Vrms 0.20Vrms
IC213
IC211
2
1 1
W : –111.5dBm W : –111.0dBm
N : –110.5dBm N : –110.5dBm
Q352
XF351
D
G2
G1 S
To make measurements in the RF section, connect the RF level meter.
In the RF section, use a 0.01µF coupling capacitor.
(The display shows the SSG input value required to obtain 12dB SINA
TX-RX Unit
W/N W/N
0.30Vrms 0.80Vrms
IC241 IC241
2
2 6 20
49.95MHz
W : –79.0dBm
N : –76.5dBm
W : –100.0dBm
N : –98.0dBm
Q351
20
W : 0.49Vrms
N : 0.26Vrms
IC201
21 10
9
To make measuremen
450kHz
CF301
/CF302
IC321
TX-RX Unit (VCO)
–2.0dBm
Q406 Q446