TM-481A
43
To make measurements in the RF section, connect the RF Wattmeter (50
Ω
).
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 0.64V/8
Ω
by the front panel AF VOL control.
Q6
meter.
B SINAD.)
TX-RX Unit
Q9
9
Q10
Power
Module
Q303
D9
D10
TX-RX Unit
S
Audio Frequency
D
TX-RX Unit (VCO)
CF501
/CF502
450kHz
G
IC501
D306/
D307
ANT
-0.5dBm
45W
W : –93.0dBm
N : –92.0dBm
W/N
0.55Vrms
W/N
0.46Vrms
W/N
0.43Vrms
W/N
0.47Vrms
W/N
0.49Vrms
W/N
10mVrms
W/N
0.88Vrms
W/N
0.64Vrms
-1.0dBm
14
J1
IC705
12
Q706
8
9
13
8ohm
10
IC709
7
IC715
IC709
5
1
IC709
IC709
15
1
3
4
1
IC302
17dBm
C60
C67
C72
LEVEL DIAGRAM