Icom IC-7851 - Preparation

3-1
SECTION 3
.
ADJUSTMENT PROCEDURE
M REQUIRED EQUIPMENT
3-1 PREPARATION
EQUIPMENT SPECIFICATION EQUIPMENT SPECIFICATION
RF power
(terminated type)
Measuring range : 10–300 W
Frequency range : 1.8–60 MHz
Impedance : 50

SWR : Less than 1.2 : 1
Standard Signal
Generator (SSG)
Frequency range : 0.1–100 MHz
Output level : –20 dBµ to 90 dBµ
(–127 to –17 dBm)
Frequency Counter
Frequency range : 0.1–100 MHz
Frequency accuracy :
±0.5 ppm or better
Input level : Less than 1 mW
AC Millivoltmeter Measuring range : 10 mV to 10 V
Digital multimeter
Input impedance : 50 k

/DC or more
Measuring range : Voltage: 0.1–30V
Current: 5A/30A
External Speaker
Input impedance : 8

Capacity : More than 5 W
Audio Generator
Frequency range : 300–3000 Hz
Output level : 1–500 mV
Attenuator
Power attenuation : 50 or 60 dB
Capacity : More than 200 W
RF-A UNIT
RF-A UNIT
RF-B UNIT
RF-A UNIT
RF-A UNIT
RF-A UNIT
MAIN UNIT
MAIN UNIT
MAIN UNIT
RF-A/-B UNIT cover
Bottom cover
M REMOVING COVERS