Icom IC-F21 Series Service Manual page 14

CONNECTION
Standard signal generator
0.1 V to 32 mV
( 127 dBm to 17 dBm)
CAUTION:
DO NOT transmit while
an SSG is connected to
the antenna connector.
FM
deviation meter 40 dB or 50 dB
RF power meter
0.1 10 W/50
NOTE:
In case of IC-F22SR, instead of connecting
the Standard Signal Generator, RF power meter,
etc to the antenna connector, connect to the J7 as
shown below.
DC POWER CABLE CONNECTIONS
Battery type detector Battery type detector
NOTE:
When you adjust the output power (high
power), the battery type detector must be con-
nected to GND (see illustration at above).
Ohterwise the transceiver does not transmit high
power, the output power will be low.
to the antenna connector
Attenuator
Frequency
counter
+
DC POWER
SUPPLY
GND
to [MIC]
to an RS-232C port
OPC-478
DB9 female plug
(incl. level converter circuit)
to [SP]
JIG cable
IC-F22SR ANTENNA CONNECT POINT
NOTE:
When adjusting SOFTWARE ADJUST-
MENT of IC-F22SR, connect the Standard Signal
generator, RF power meter, etc to the J7 (See
illustration at above).
5 - 3
Audio generator
Personal
computer
SINAD meter
Speaker (8 )
J7
Signal terminal
GND terminals