Icom IC F121S - Manual (Page 53)

5 - 5
5-3 SOFTWARE ADJUSTMENT
Select an operation using [ ↑] / [↓] keys, then set specified value using [←] / [→] keys on the connected computer keyboard.
1
1
2
3
1
2
1
2
1
• Operating freq. : 490.000 MHz
430.000 MHz
• Output power : Low1
• Connect the RF power meter or 50
Ω
dummy load to the antenna connector.
• Transmitting
• Operating freq. : 465.000 MHz [H]
415.000 MHz [L]
• Output power : High
• Transmitting
• Output power : Low2
• Transmitting
• Output power : Low1
• Transmitting
• Operating freq. : 415.000 MHz [L]
465.000 MHz [H]
• Output power : Low1
• IF bandwidth
: Wide
• 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 : OFF
LPF : 20 kHz
De-emphasis : OFF
Detector
: (P–P)/2
• Transmitting
• IF bandwidth : Narrow
• Transmitting
• Set to the DTCS set channel, and push
[Connect] on the adjustment software.
• Operating freq. : 415.000 MHz [L]
465.000 MHz [H]
• Output power : Low1
• Transmitting
• IF bandwidth : Narrow
• Transmitting
• Operating freq. : 415.000 MHz [L]
465.000 MHz [H]
• Output power : Low1
• IF bandwidth
: Wide
• CTCSS : 254.1 Hz
• DTCS code : 007
• Set the FM deviation meter as:
HPF : OFF
LPF : 20 kHz
De-emphasis : OFF
Detector
: (P–P)/2
• No audio applied to the [MIC] connector.
• Transmitting
REFERENCE
FREQUENCY
[TXF]
OUTPUT
POWER
[Power (Hi)]
[Power (L2)]
[Power (L1)]
FM
DEVIATION
[MOD W]
[MOD Ratio]
MODULATION
BALLANCE
[BAL W]
[BAL Ratio]
CTCSS/DTCS
DEVIATON
[CTCS/DTCS]
Rear
panel
Rear
panel
Rear
panel
Rear
panel
Rear
panel
Loosely couple a frequnecy
counter to the antenna connec-
tor.
Connect an RF power meter to
the antenna connector.
Connect an FM deviation meter
to the antenna connector
through the attenuator.
Connect an FM deviation meter
with an oscilloscope to the
antenna connector through an
attenuator.
Connect an FM deviation meter
to the antenna connector
through the attenuator.
490.0000 MHz [H]
430.0000 MHz [L]
25.0 W [25 W]
45.0 W [45 W]
10.0 W [25 W]
25.0 W [45 W]
2.5 W [25 W]
5.0 W [5 W]
±4.1 kHz [N/W]
±3.3 kHz [N/M]
±2.1 kHz
±0.7 kHz
ADJUSTMENT ADJUSTMENT CONDITION
MEASUREMENT
VALUE
UNIT LOCATION
Set to square wave
form