Connection; Adjustment Utility - Icom IC-M73 Service Manual

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