![background image](http://html.mh-extra.com/html/icom/ic-m73/ic-m73_service-manual_612890015.webp)
5 - 2
¤
CONNECTION
Standard signal generator
–20 to 90 dBµ
(–127 dBm to –17 dBm)
FM
deviation meter
SINAD meter
Speaker (8
Ω
)
Audio generator
AC millivoltmeter
to the antenna connector
Attenuator
30 dB or more
RF power meter
0.1–10 W/50
Ω
Frequency
counter
DO NOT
transmit while
an SSG is connected to
the antenna connector.
To CLONE line
(BLACK)
To MIC line
(WHITE)
To SP line
(RED)
JIG cable
PC
to USB port
to RS-232C port
OPC-478 (RS-232C type)
OPC-478UC (USB type)
OPC-922
¤
ADJUSTMENT UTILITY
ADJUSTMENT CONDITION
REFERENCE FREQUENCY
TX OUTPUT POWER
FM MODULATION
RX SENSITIVITY
SQUELCH
VOX