Icom ID-51A Service Manual - Page 27
DIAL], DV BALANCE, De-emphasis : OFF
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5-3 TRANSMIT ADJUSTMENT (Continued) • DEVIATION ADJUSTMENTS (Continued) Select an adjustment item using / , and then set the adjustment value as specified using [DIAL]. ADJUSTMENT ADJUSTMENT ITEM OPERATION DV BALANCE -VHF[BAND LOW] [BAND CENTER] 1 1) Set the power supply voltage to 7.4 V. 2) Connect a modulation analyzer to the antenna connector through an attenuator, and then set it as; - HPF : OFF LPF : 20 kHz De-emphasis : OFF Detector : (P-P)/2 3) No audio signal is applied. 2 • While transmitting, adjust the deviation using [DIAL], and then push to store the adjustment value. 3 [BAND HIGH] -UHF[BAND LOW] 4 [DVR] 5 [BAND CENTER] 6 [BAND HIGH] 7 VALUE - Minimum deviation 5 - 9
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5-3 TRANSMIT ADJUSTMENT (Continued)
• DEVIATION ADJUSTMENTS (Continued)
Select an adjustment item using
/
, and then set the adjustment value as specified using
[DIAL]
.
ADJUSTMENT
ADJUSTMENT
ITEM
OPERATION
VALUE
DV BALANCE
–
1
1) Set the power supply voltage to 7.4 V.
2)
Connect a modulation analyzer to the antenna connector through
an attenuator, and then set it as;
HPF
: OFF
LPF
: 20 kHz
De-emphasis : OFF
Detector
: (P-P)/2
3)
No audio signal is applied.
–
-VHF-
[BAND LOW]
[DVR]
2
•
While transmitting, adjust the deviation using
[DIAL]
, and then
push
to store the adjustment value.
Minimum
deviation
[BAND CENTER]
3
[BAND HIGH]
4
-UHF-
[BAND LOW]
5
[BAND CENTER]
6
[BAND HIGH]
7