Icom IC-E90 Service Manual page 27

Multiband fm transciever
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ADJUSTMENT MODE ADJUSTMENTS (Continued)
• The following adjustment must be performed at "ADJUSTMENT MODE".
ADJUSTMENT
ADJUSTMENT CONDITION
CTCSS
1
• Displayed frequency :
DEVIATION
(CT ch.)
(50 MHz)
• No audio applied to the [MIC]
jack.
• Set an FM deviation meter as:
HPF
LPF
De-emphasis : OFF
Detector
• Output power
• Transmitting
(145 MHz)
2
• Displayed frequency :
(CT ch.)
• Transmitting
(440 MHz)
3
• Displayed frequency :
(CT ch.)
• Transmitting
DTCS
1
• Displayed frequency :
DEVIATION
(DS ch.)
(50 MHz)
• No audio applied to the [MIC]
jack.
• Set an FM deviation meter as:
HPF
LPF
De-emphasis : OFF
Detector
• Output power
• Transmitting
(145 MHz)
2
• Displayed frequency :
(DS ch.)
• Transmitting
(440 MHz)
3
• Displayed frequency :
(DS ch.)
• Transmitting
UNIT
Top
53.900 MHz
Panel
: OFF
: 20 kHz
: (p-p)/2
: High
145.000 MHz
445.500 MHz
Top
51.000 MHz
panel
: OFF
: 20 kHz
: (p-p)/2
: High
145.000 MHz
445.500 MHz
MEASUREMENT
LOCATION
Connect
an
FM
deviation meter to
the [ANT] connector
through an attenua-
tor.
Connect
an
FM
deviation meter to
the [ANT] connector
through an attenua-
tor.
5 - 10
ADJUSTMENT
POINT
VALUE
UNIT
± 0.55 kHz
Top
panel
± 0.55 kHz
± 0.65 kHz
± 0.5 kHz
Top
panel
± 0.6 kHz
± 0.6 kHz
ADJUST
[DIAL]
[DIAL]
[DIAL]
[DIAL]
[DIAL]
[DIAL]

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