Receive Adjustment (Tv) - Icom IC-R9500 Service Manual

4-7 RECEIVE ADJUSTMENTS (VHF and UHF) [RX-V/U2]
• Push [F-4•RX V/U2] key to select RX V/U2 ADJUSTMENT.
• Connect the SG to [ANT2] and set as;
Modulation : None
NOTE: HOLD the adjustment condition (SG level and frequency etc.) until next ADJ item is displayed.
ADJUSTMENT ITEM
TOTAL GAIN
[Total Gain V/U2-1 PRE OFF]
[Total Gain V/U2-1 PRE ON]
[Total Gain V/U2-2 PRE OFF]
[Total Gain V/U2-2 PRE ON]
[Total Gain V/U2-3 PRE OFF]
[Total Gain V/U2-3 PRE ON]
GAIN-UP TOTAL GAIN
[Gain UP Total Gain V/U2-1
PRE OFF]
[Gain UP Total Gain V/U2-1
PRE ON]
ADJUSTMENT CONDITION
1) Set the SG as;
Frequency : 1260.0215 MHz
Level : +60 dBu
2) Set the SG as;
Level : OFF
• Set the SG as;
Level : OFF
1) Set the SG as;
Frequency : 2350.0215 MHz
Level : +60 dBu
2) Set the SG as;
Level : OFF
• Set the SG as;
Level : OFF
• Set the SG as;
Frequency : 3000.0215 MHz
Level : +60 dBu
2) Set the SG as;
Level : OFF
2) Set the SG as;
Level : OFF
1) Set the SG as;
Frequency : 1260.0215 MHz
Level : + 60dBu
2) Set the SG as;
Level : OFF
• Set the SG as;
Level : +60 dBu
OPERATION
Measure the AF output level and set it as
the reference level (0 dB).
Rotate [MAIN DIAL] to adjust the AF
output level.
Push [F-7] key.
Rotate [MAIN DIAL] to adjust the AF
output level.
Push [F-7] key.
Measure the AF output level and set it as
the reference level (0 dB).
Rotate [MAIN DIAL] to adjust the AF
output level.
Push [F-7] key.
Rotate [MAIN DIAL] to adjust the AF
output level.
Push [F-7] key.
Measure the AF output level and set it as
the reference level (0 dB).
Rotate [MAIN DIAL] to adjust the AF
output level.
Push [F-7] key.
Rotate [MAIN DIAL] to adjust the AF
output level.
Push [F-7] key.
Measure the AF output level and set it as
the reference level (0 dB).
Rotate [MAIN DIAL] to adjust the AF
output level.
Push [F-7] key.
Rotate [MAIN DIAL] to adjust the AF
output level.
Push [F-7] key.
4 - 14
VALUE
0 dB
25 dB less
than reference
level above
0 dB
25 dB less
than reference
level above
0 dB
25 dB less
than reference
level above
0 dB
15 dB less
than reference
level above
10 dB less
than reference
level above