TK-8108H
TK-8108H
49
50
LEVEL DIAGRAM
8
1
Q351
S
X54-346
9
450kHz
Q353
IC161
9
2
XF1
1
D
11
BPF
12
To make measurements in the RF section,
connect the RF Wattmeter (50
Ω
).
49.95MHz
7
BPF
2
G
Q500
Display Unit
ANT
IC251
5
G2
Center Frequency
7
D
45W
MIC
Q501
CF1
/CF2
IC251
1
G1
7dBm
IC201
5
Q504
D601
IC301
IC251
16dBm
0dBm
3
S
10
IC202
IC251
20
G
ANT
IC203
Q502
W/N
0.34Vrms
W/N
5.0mVrms
W/N
0.10Vrms
W/N
1.40Vrms
W/N
1.16Vrms
W/N
1.26Vrms
W/N
1.04Vrms
W/N
0.33Vrms
W/N
0.27Vrms
W/N
0.31Vrms
W/N
0.33Vrms
W/N
10mVrms
W/N
0.55Vrms
W/N
0.45Vrms
15dBm
FINAL Amp
Q406
7
D
IC252
1
IC201
S
J1
Q352
S
TX-RX Unit
14dBm
Q410
6
D
1
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.
Q251
TX-RX Unit (VCO)
TX-RX Unit
D
–5dBm
Q411
10
S
11
14
TX-RX Unit
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/4
Ω
by the front panel AF VOL control.
8
G
D409
IC161
IC203
4
Ω
G1
12
9
Q503
IC202
To make measurements in the RF section, connect the RF level meter.
In the RF section, use a 0.01
µ
F coupling capacitor.
(The display shows the SSG input value required to obtain 12dB SINAD.)
Audio Frequency
G2
D602
W : –121.0dBm
N : –120.5dBm
W : –119.0dBm
N : –118.5dBm
W : –105.5dBm
N : –105.5dBm
W : 1.05Vrms
N : 0.44Vrms
W : 0.49mVrms
N : 0.20mVrms
W : –106.0dBm
N : –105.0dBm
W : –117.5dBm
N : –117.0dBm
W : –103.0dBm
N : –101.5dBm
W : –85.0dBm
N : –80.5dBm
W : –93.0dBm
N : –91.0dBm
Receiver Section
Transmitter Section