Icom IC-7600

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4-9-2 SOFTWARE ADJUSTMENT (RECEIVE) (continued)
ADJUSTMENT
ADJUSTMENT
ITEM
OPERATION VALUE
PREPARATION
–
1) Connect an SSG to [ANT1] and set it as;
Frequency : 14.1515 MHz
Modulation : None
Level : OFF (initially)
2) Connect an AC Millivoltmeter to [EXT-SP].
–
TOTAL GAIN
(Pre-AMP: OFF)
1
[Total Gain HF PRE
OFF]
1) Set the SSG as;
Level : +60 dBµ
†
(–47 dBm)
2) Set the audio output level to 0 dB as the reference.
3) Set the SSG as;
Level : "OFF"
4) Adjust the AF output level using MAIN DIAL, then push [F-6]
(SET).
–30 dB
(Pre-AMP: ON) 2 [Total Gain HF PRE
ON]
• Adjust the AF output level using MAIN DIAL, then push [F-6]
(SET).
EXTERNAL AGC 1
[AGC (RX-DSP)]
1) Set the SSG as;
Level : +70 dBµ
†
(–37 dBm)
2) Push [F-6] (SET).
–
S-METER 1
[HF S0 LEVEL]
1) Set the SSG as;
Level : "OFF"
2) Push [F-6] (SET). (the beep "Pi" sounds)
NEVER CHANGE the SSG output level until the two short beeps
"PiPi" sound. The two short beeps will sound after 0.5 sec. from
1st single beep "Pi" sounds.
–
2
[HF S9 LEVEL]
1) Set the SSG as;
Level : +34 dBµ
†
(–73 dBm)
2) Push [F-6] (SET). (the beep "Pi" sounds)
NEVER CHANGE the SSG output level until the two short beeps
"PiPi" sound. The two short beeps will sound after 1 sec. from 1st
single beep "Pi" sounds.
–
3
[S9+60 LEVEL]
1) Set the SSG as;
Level : +94 dBµ
†
(–13 dBm)
2) Push [F-6] (SET). (the beep "Pi" sounds)
NEVER CHANGE the SSG output level until the two short beeps
"PiPi" sound. The two short beeps will sound after 0.5 sec. from
1st single beep "Pi" sounds.
(Returns to "ADJUST MODE.")
–
†
; The output level of the standard signal generator (SSG) is indicated as the SSG’s terminated circuit.
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