Icom IC-FR4000 Service Manual page 24

SOFTWARE ADJUSTMENT – continued
Select an item using [CH-UP] / [CH-DN] buttons, then set specified value using [RPT/BASE] / [MONI] buttons on the FRONT
PANEL.
ADJUSTMENT
CTCSS 1
• LCD display
DEVIATION • Operating freq. : 415.2750 MHz
[WIDE]
• Set the FM deviation meter as:
HPF
LPF
De-emphasis: OFF
Detector
• No audio applied to the [MIC] connector.
• Transmitting
[NARROW] 2
• LCD display
• Operating freq : 415.2750 MHz
• No audio applied to the [MIC] connector.
• Transmitting
MODULATION 1
• LCD display
BALANCE
• Operating freq. : 415.2750 MHz
[DTCS]
• No audio applied to the [MIC] connector.
• Transmitting.
*The output level of the standard signal generator (SSG) is indicated as the SSG's open circuit.
1: [USA1], [GEN1], [GEN5], [EUR1]
2: [GEN2], [GEN6]
3: [USA3], [GEN3], [GEN7], [EUR3]
ADJUSTMENT CONDITION
: A10 LW CTCDEV
440.2750 MHz
465.2750 MHz
: OFF
: 20 kHz
: (P–P)/2
: A12 LN CTCDEV
440.2750 MHz
465.2750 MHz
: A11 LW DTCADJ
440.2750 MHz
465.2750 MHz
4: [FRG1]
5: [FRG3]
MEASUREMENT
UNIT
Rear Connect the FM deviation meter
1 4
, panel to the [TX] antenna connector
2
through
3 5
,
1 4
,
2
3 5
,
Rear Connect the FM deviation meter
1 4 panel with the oscilloscope to the [TX]
,
2 antenna connector through an
3 5 attenuator.
4 - 8
LOCATION
±0.7 kHz
±0.56 kHz
the attenuator.
Set to flat wave
form
VALUE
1 2 3
, ,
4 5
,
±0.35 kHz