Section 5 Adjustment Procedures; Preparation - Icom IC-GM1600E Service Manual

SECTION 5

5-1 PREPARATION

REQUIRED TEST EQUIPMENTS
When adjusting IC-GM1600/E, the optional CS-M90/GM1600 ADJ
type) or OPC-478U (USB type)
EQUIPMENT
Measuring range
Frequency range
RF power meter
(terminated type)
Impedance
SWR
Frequency range
Frequency counter Frequency accuracy : ±1 ppm or better
Sensitivity
Frequency range
FM deviation meter
Measuring range
Frequency range
Audio generator
Output level
STARTING SOFTWARE ADJUSTMENT
(1) Connect IC-GM1600/E and a PC with OPC-478/U,
OPC-1028 and JIG CABLE.
(2) Turn the transceiver ON.
®
(3) Boot up Windows , and click the program group 'CS-M90/
GM1600 ADJ' in the 'Programs' folder of the [Start] menu,
then CS-M90/GM1600 ADJ's window appears.
(4) Click 'Adjust' on the CS-M90/GM1600's window, then
IC-GM1600/E's up-to-date condition appears.
(5) Set or modify adjustment data as desired.
CAUTION!:
BACK UP the originally programmed memory
data in the transceiver before programming
the adjustment frequencies.
When program the adjustment frequencies
into the transceiver, the transceiver's memory
data will be overwritten and lose original
memory data at the same time.
Microsoft and Windows are registered trademarks of
Microsoft Corporation in the U.S.A. and other countries.
ADJUSTMENT PROCEDURES
OPC-1028 and JIG cable (see page 5-2) are required.
CLONING CABLE,
GRADE AND RANGE
: 0.1–3 W
: 100–300 MHz
: 50 Ω
: Less than 1.2 : 1
: 0.1–300 MHz
: 100 mV or better
: 30–300 MHz
: 0 to ±10 kHz
: 300–3000 Hz
: 1–500 mV
ADJUSTMENT SOFTWARE
EQUIPMENT
Standard signal
generator (SSG)
Oscilloscope
AC millivoltmeter
External speaker
Attenuator
5 - 1
(Rev. 1.0 or later), OPC-478 (RS-232
GRADE AND RANGE
Frequency range : 0.1–300 MHz
: 0.1 µV to 32 mV
Output level
(–127 to –17 dBm)
Frequency range : DC–20 MHz
Measuring range : 0.01–20 V
Measuring range : 10 mV to 10 V
Input impedance : 8 Ω
Capacity : More than 0.3 W
Power attenuation : 20 or 30 dB
Capacity : More than 5 W