Preparation - Icom IC-M25 Service Manual

SECTION 6

6-1 PREPARATION

M REQUIRED EQUIPMENTS
EQUIPMENT
Cloning software ADJ-M25/M25EURO (Revision 1.0 or later) Cables
Measuring range:
RF power meter
Frequency range:
(50 Ω terminated)
SWR:
GENERAL CONNECTION
M CONNECTION
Standard signal generator
–20 to 90 dBµ
(–127 dBm to –17 dBm)
RF power meter
0.1–6 W/50 Ω
Frequency
counter
OPC-478/U/UC
ADJUSTMENT PROCEDURE
GRADE AND RANGE
0.1–6 W
100–300 MHz
Less than 1.2 : 1
to the antenna connector
DO NOT transmit while
an SSG is connected to
the antenna connector.
To [SP/MIC]
To SINAD meter/speaker
(SP line)
(CLONE line)
EQUIPMENT
Frequency counter
Standard signal
generator (SSG)
to USB port
(USB type)
Modified
OPC-1655
To audio generator/AC millivoltmeter
PTT
Ω
33 k
WHITE (MIC)
(MIC line)
RED (AFOUT)
BLUE (CLONE)
SHIELD (GND)
6-1
GRADE AND RANGE
OPC-478UC and OPC-1655
Frequency range: 0.1–300 MHz
Frequency accuracy: ±1 ppm or better
Input level: Less than 1 mW
Frequency range: 0.1–300 MHz
Output level: –20 dBµ to 90 dBµ
(–127 to –17 dBm)
OPC-478UC
OPC-1668
To the transceiver
PC