Software Adjustment; Adjustment Condition - Icom IC-F3GT Service Manual

5-3 SOFTWARE ADJUSTMENT

Select an operation using [ ] / [ ] keys, then set specified value using [ ] / [ ] keys on the connected computer keyboard.
ADJUSTMENT
REFERENCE 1 • Operating frequency:
FREQUENCY
[TXF]
• High/Low switch
• Connect the RF power meter or 50 Ω
dummy load to the antenna connector.
• Transmitting
2 • Transmitting
OUTPUT 1 • Operating frequency:
POWER
[POWER (LO)]
• High/Low switch
• Transmitting
[POWER (HI)] 2 • High/Low switch
• Transmitting
FM 1 • Operating frequency:
DEVIATION
[MOD]
• High/Low switch
• Connect the audio generator to the
[MIC] jack and set as
• Set the FM deviation meter as:
HPF
LPF
De-emphasis
Detector
• Transmitting
DTCS WAVE 1 • Operating frequency:
FORM
[DTCS BAL]
• High/Low switch
• No audio applied to the [MIC] jack.
• DTCS code
• Transmitting
* 1 W/N-type must adjust both (W-type) and (N-type).

ADJUSTMENT CONDITION

136.000 MHz (L-band)
146.000 MHz (H-band)
: Low
136.000 MHz (L-band)
146.000 MHz (H-band)
: Low
: High
136.000 MHz (L-band)
146.000 MHz (H-band)
: Low
: 1.0 kHz/150 mVrms
: OFF
: 20 kHz
: OFF
: (P–P)/2
143.000 MHz (L-band)
160.000 MHz (H-band)
: Low
: 007
MEASUREMENT
UNIT LOCATION
Top Loosely couple a frequnecy
panel counter to the antenna connec-
tor.
Top Connect an RF power meter to
panel the antenna connector.
Top Connect an FM deviation meter
panel to the antenna
through the attenuator.
Top Connect an FM deviation meter
panel with an oscilloscope to the
antenna connector through an
attenuator.
5 - 6
VALUE
136.00000 MHz
(L-band)
146.00000 MHz
(H-band)
136.001360 MHz
(L-band)
146.001460 MHz
(H-band)
1.0 W
5.0 W
±4.1 kHz (W-type)*
±3.3 kHz (M-type)
connector
±2.0 kHz (N-type)*
Set to flat wave
form
1
1