Icom IC-F4001 Service Manual page 14

¤ CONNECTION
Standard signal generator
–20 to 90 dBµ
(–127 to –17 dBm)
NEVER transmit while
an SSG is connected to
the antenna connector.
FM Attenuator
deviation meter 30 dB
RF power meter
0.1– 6 W/50 Ω
Frequency
counter
to the antenna connector
OPC-478
(RS-232C type)
to USB port
OPC-478U
(USB type)
OPC-478UC
(USB type)
To [SP] connector
To [MIC]
To [SP]
JIG cables
5 - 2
to RS-232C port
PC
to USB port
Speaker (8 Ω)