Icom IC-2800H

5 - 5
DC power supply
13.8 V / 20 A
Controller
R229
UHF squelch
adjustment
R196
VHF squelch
adjustment
2.2 kΩ
JIG1
JIG CONNECTOR
12345678
12345678
4.7 kΩ
JIG2
to the microphone connector
or
(Sensitivity)
(S-meter)
RECEIVER ADJUSTMENTS (continued)
SQUELCH
(UHF)
(VHF)
ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITION
MEASUREMENT
VALUE
POINT
UNIT LOCATION UNIT ADJUST
1
2
• UHF displayed freq. :
445.000 MHz [USA]
435.000 MHz other
• Set the squelch level to 22 %
using the HM-98 microphone.
• R229 : Max clockwise
• set an SSG as:
Level :
14 µV* (–85 dBm)
• Receiving
• VHF displayed freq. :
145.000 MHz [EUR]
146.000 MHz other
• Set the squelch level to 22 %
using the HM-98 microphone.
• R196 : Max clockwise
• set an SSG as:
Level :
14 µV* (–85 dBm)
• Receiving
Speaker At the point where the
signal just appears.
MAIN R229
R196
*This output level of the standard signal generator (SSG) is indicated as SSG’s open circuit.