A
1
2
3
4
5
B
C
D
E
F
G
(No.RA035<Rev.001>) 2-5
2-5 (No.RA035<Rev.001>)
Transmitter Section
ANT
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.)
To make measurement in the AF section, connect the AC level meter.
(ANT input: –53dBm, 1kHz FM, 1.5kHz Dev (Narrow).)
The AF output level is adjusted for a 0.6Vrms/8ohm by the Volume knob.
BPF
BPF
LNA
Q405
Mixer
Q404
MCF
XF400
FM IC
IC400
IF1 (49.95MHz)
IF2 (450kHz)
1
13
IC707
J601
16
26
AF (1kHz)
10
4
0.76Vrms
438mVrms
12.7mVrms
0.63Vrms
17 16
76.5mVrms
RF (Center Frequency)
IF AMP
Q403
N: –107dBm
74.8mVrms
G1
D
G1
D
N: –117dBm
N: –117dBm
N: –102dBm
76.8mVrms
IC705
CML
Baseband
IC
IC705
CML
Baseband
IC
LEVEL DIAGRAM
Receiver Section
N: –106.5dBm
MIC
Baseband
IC
23
24
~
~
IC705
Q6
VCO
Q9
Buffer
Q11
Buffer
Q10
Buffer
Q201
C763
C216
Q206
Drive
C228
Q208
Final
C268
LPF
AF (1kHz)
RF (Center Frequency)
C201
MIC input : 1.5kHz DEV.(Narrow) at 1kHz MOD
Transmitting frequency : Center frequency
5W
8mVrms
134mVrms
31mVrm
5.3dBm
16.3dBm
24.0dBm
38.0dBm
Pre-Drive
N: –118dBm (E,E2)
N: –120dBm (K,M)