Software Adjustment - Icom IC F110S 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 freq. : 174.000 MHz
FREQUENCY • Output power : Low1
• Connect the RF power meter or 50 Ω
[TXF]
dummy load to the antenna connector.
• Transmitting
OUTPUT 1 • Operating freq. : 155.000 MHz
POWER • Output power : High
[Power (Hi)] • Transmitting
[Power (L2)] 2 • Output power : Low2
• Transmitting
[Power (L1)] 3 • Output power : Low1
• Transmitting
FM 1 • Operating freq. : 155.000 MHz
DEVIATION • Output power : Low1
[MOD W] • IF bandwidth
• Connect an audio generator to the [MIC]
jack through the JIG cable and set as:
1.0 kHz/40 mVrms
• Set an FM deviation meter as:
HPF
LPF
De-emphasis: OFF
Detector
• Transmitting
[MOD Ratio] 2 • IF bandwidth
• Transmitting
MODULATION 1 • Set to the DTCS set channel, and push
BALLANCE [Connect] on the adjustment software.
[BAL W] • Operating freq. : 174.000 MHz
• Output power : Low1
• Transmitting
[BAL Ratio] 2 • IF bandwidth
• Transmitting
CTCSS/DTCS 1 • Operating freq. : 155.000 MHz
DEVIATON • Output power : Low1
[CTCS/DTCS] • IF bandwidth
• CTCSS
• DTCS code
• Set the FM deviation meter as:
HPF
LPF
De-emphasis: OFF
Detector
• No audio applied to the [MIC] connector.
• Transmitting
ADJUSTMENT CONDITION
: Wide
: OFF
: 20 kHz
: (P–P)/2
: Narrow
: Narrow
: Wide
: 88.5 Hz
: 007
: OFF
: 20 kHz
: (P–P)/2
MEASUREMENT
UNIT LOCATION
Rear Loosely couple a frequnecy
panel counter to the antenna connec-
tor.
Rear Connect an RF power meter to
panel the antenna connector.
Rear Connect an FM deviation meter
panel to the antenna
through the attenuator.
Rear Connect an FM deviation meter
panel with an oscilloscope to the
antenna connector through an
attenuator.
Rear Connect an FM deviation meter
panel to the antenna
through the attenuator.
5 - 5
VALUE
174.0000 MHz
25.0 W [25 W]
50.0 W [50 W]
10.0 W [25W]
25.0 W [50 W]
2.5 W [25W]
5.0 W [50 W]
±4.1 kHz [N/W]
connector ±3.3 kHz [N/M]
±2.1 kHz
Set to square wave
form
±0.68 kHz [N/W]
connector
±0.56 kHz [N/M]