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Receiver Section
Center Frequency
W : –123.5dBm
W : –119.0dBm
W : –104.5dBm
N : –123.0dBm
N : –118.5dBm
N : –103.5dBm
Q353
D
G2
ANT
BPF
BPF
G1
S
Transmitter Section
Display
Unit
X54-343
W/N
5.0mVrms
W/N
W/N
W/N
0.10Vrms
1.40Vrms
1.16Vrms
MIC
IC201
IC201
IC202
2
1
6
7
3
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.
TK-7100H
49.95MHz
W : –77.5dBm
N : –74.0dBm
W : –104.0dBm
W : –112.0dBm
W : –92.0dBm
N : –103.5dBm
N : –111.5dBm
N : –90.5dBm
Q352
XF1
Q351
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 SINAD.)
TX-RX Unit
W/N
W/N
W : 1.05Vrms
W : 0.49mVrms
1.26Vrms
1.04Vrms
N : 0.44Vrms
N : 0.20mVrms
IC202
IC203
IC203
IC161
1
5
7
2
1
9
8
9
TK-7100H
LEVEL DIAGRAM
450kHz
W : –85.0dBm
N : –84.5dBm
CF1
W/N
W/N
/CF2
0.33Vrms
0.32Vrms
IC301
IC251
IC251
11
20
9
8
12
To make measurements in the AF section, connect the AC level meter.
(ANT input : –53dBm, 1kHz FM, 3kHz DEV (Wide)/1.5kHz DEV (Narrow))
The AF output level is adjusted for a 0.45V/4Ω by the front panel AF VOL control.
TX-RX Unit (VCO)
–7dBm
–8dBm
–5dBm
IC402
Q406
Q410
Q411
10
2
1
To make measurements in the RF section,
connect the RF Wattmeter (50Ω).
49
Audio Frequency
W/N
W/N
W/N
W/N
0.26Vrms
0.30Vrms
0.31Vrms
10mVrms
IC251
IC251
IC161
Q251
14
3
1
5
7
12
TX-RX Unit
–7dBm
13dBm
18dBm
D409
Q503
Q501
Q502
D
G
S
W/N
W/N
0.50Vrms
0.45Vrms
IC252
11
10
1
J1
FINAL Amp
TX-RX Unit
50W
Q504
D
D602
ANT
G
S
50
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