Adjustment Procedure; Preparation - Icom IC-M85 Service Manual

SECTION 4

4-1 PREPARATION

REqUIRED EqUIPMENT
■
EqUIPMENT
CS-M85 PROGRAMMING
Programming software
SOFTWARE (Revision 1.0 or later)
Measuring range: 0.1~10 W
RF power meter
Frequency range: 100~300 MHz
(50 Ω terminated)
SWR:
Range:
Frequency counter Accuracy:
Input level:
Frequency range: 30~300 MHz
Modulation Analyzer
Measuring range: 0~±10 kHz
AC millivoltmeter Measuring range: 10 mV to 10 V
CONNECTIONS
■
To the antenna connector
Loose
coupling
The tests described in this section should be measured and adjusted with the above test equipment.
However, a radio tester can also be used for these adjustment procedures.

ADJUSTMENT PROCEDURE

SPECIFICATIONS
Less than 1.2 : 1
0.1~300 MHz
±1 ppm or better
Less than 1 mW
Standard signal generator
–127 dBm to –17 dBm
(0.1 V to 32 mV)
CAUTION!
DO NOT transmit while an
SSG is connected to the
antenna connector directly.
Modulation
Attenuator
analyzer
30 dB or 40 dB
RF power meter
0.1~10 W/50 Ω
Frequency
counter
CAUTION!
Firmly attach to the
multi-connector, but
do not overtighten.
EqUIPMENT
Oscilloscope
Standard signal
generator (SSG)
Audio generator (AG)
JIG cable
Attenuator
Oscilloscope
4-1
SPECIFICATIONS
Frequency range: DC~20 MHz
Measuring range: 0.01~20 V
Frequency range: 0.1~300 MHz
Output level: −20 dBμ to 90 dBμ
(−127 to −17 dBm)
Frequency range: 300~3000 Hz
Output level: 1~500 mV
Modified OPC-2338 (see the
illustration on page 4-2)
Attenuation: 30 dB or 40 dB
Capacity: More than 10 W
PC