A
1
2
3
4
5
B
C
D
E
F
G
(No.RA003<Rev.004>) 2-5
2-5 (No.RA003<Rev.004>)
ANT
N : –120.5dBm
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.
To make measurements in the AF section, connect the AC level meter.
AG is set so that MIC input becomes 1.5kHz (Narrow) DEV at 1kHz MOD.
To make measurements in the RF section, connect the RF Wattmeter (50ohm).
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
0.88Vrms
460mVrms
15.28mVrms 0.63Vrms
17 16
90.98mVrms
RF (Center Frequency)
IF AMP
Q403
86.2mVrms
N : –107dBm
82mVrms
Q9
Q10
–2.16dBm
AF (1KHz)
G1
D
G1
D
20
21 24
ANT
D203
D204
TX VCO
MIC
f1,f2: 14.17dBm
f3: 13.26dBm
f1,f2: 13.15dBm
f3: 12.34dBm
f1: K, M
f2: K2, P, M2, M3
f3: K3
N : –119.5dBm
N : –104dBm
N : –116dBm
N : –102dBm
91.91mVrms
18.14mVrms
IC705
Baseband
IC
CML
72.6mVrms
RF (Center Frequency)
1.31dBm
PRE DRIVE
AMP
Q201
DRIVE FET
Q206
FINAL FET
Q208
H:5W
L:1W
In the RF section, use a 270pF coupling capacitor.
High
Low
f1,f2: 18.61dBm
f3: 22.53dBm
f1,f2: 14.52dBm
f3: 22.50dBm
High
Low
f1,f2: 33dBm
f3: 34.3dBm
f1,f2: 26dBm
f3: 27.6dBm
C216
C228
C219
C74
C81
IC705
CML
Baseband
IC
IC705
CML
Baseband
IC
C775
C268
LEVEL DIAGRAM
Receiver Section
Transmitter Section