Software Adjustment - Icom IC-F3GS 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: 146.000 MHz
FREQUENCY • High/Low switch
• Connect the RF power meter or 50 Ω
[TXF]
dummy load to the antenna connector.
• Transmitting
2 • Transmitting
OUTPUT 1 • Operating frequency: 146.000 MHz
POWER • High/Low switch
[POWER(LO)] • Transmitting
[POWER(HI)] 2 • High/Low switch
• Transmitting
FM 1 • Operating frequency: 146.000 MHz
DEVIATION • High/Low switch
[MOD] • 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: 160.000 MHz
FORM • High/Low switch
[DTCS BAL] • No audio applied to the [MIC] jack.
• DTCS code
• Transmitting
ADJUSTMENT CONDITION
: Low
: Low
: High
: Low
1.0 kHz/150 mVrms
: OFF
: 20 kHz
: OFF
: (P–P)/2
: 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 - 5
VALUE
146.00000 MHz
146.00146 MHz
1.0 W
5.0 W
±4.2 kHz (W-type)
±2.1 kHz (N-type)
connector
Set to flat wave
form