![background image](http://html1.mh-extra.com/html/icom/ic-f4261dt/ic-f4261dt_service-manual_4270747054.webp)
5 - 1
SECTION 5. ADJUSTMENT
PROCEDURE
5-1 PREPARATION
▄
REQUIRED TEST EQUIPMENTS
EQUIPMENT
GRADE AND RANGE
EQUIPMENT
GRADE AND RANGE
Adjustment software
CS-F3160/5060 ADJ
CS-F3160/5060 ADJ (dPMR) (for [DPM-01])
JIG cable
Modifi ed OPC-1862 CLONING CABLE
(See the illustration on page 5-2)
FM deviation meter
Frequency range
Measuring range
: DC–600 MHz
: 0 to
±
10 kHz
Attenuator
Power attenuation
Capacity
: 30 or 40 dB
: 10 W
Frequency counter
Frequency range
Frequency accuracy
Sensitivity
: 0.1–600 MHz
: ±1 ppm or better
: 100 mV or better
Standard signal
generator (SSG)
Frequency range
Output level
: 0.1–600 MHz
: 0.1 µV to 32 mV
(–127 to –17 dBm)
RF power meter
Measuring range
Frequency range
Impedance
SWR
: 1–10 W
: 100–300 MHz
: 50
Ω
: Better than 1.2 : 1
Oscilloscope
Frequency rang
Measuring range
: DC–20 MHz
: 0.01–20 V
External speaker
Input impedance
Capacity
: 8
Ω
: 1 W or more
¤
CONNECTION
JIG CABLE
PC
CAUTION
: Attach the [SP
MIC] jack snugly, but do
not overtighten.
An overtightened jack will
damage the connector
pins in the transceiver.
FM
deviation meter
Oscilloscope
to the antenna connector
Attenuator
30 dB or 40 dB
RF power meter
0.1–10 W/50
Ω
Frequency
counter
Standard signal generator
0.1 µV to 32 mV
(–127 dBm to –17 dBm)
CAUTION!
DO NOT
transmit while
the SSG is connected to
the antenna connector.