ICOM IC F121S Manual De Usuario

5 - 5

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. : 174.000 MHz
• Output power : Low1
• Connect the RF power meter or 50 

Ω

dummy load to the antenna connector.

• Transmitting

• Operating freq. : 155.000 MHz
• Output power : High
• Transmitting

• Output power : Low2
• Transmitting

• Output power : Low1
• Transmitting

• Operating freq. : 155.000 MHz
• 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. : 174.000 MHz
• Output power : Low1
• Transmitting

• IF bandwidth

: Narrow

• Transmitting

• Operating freq. : 155.000 MHz
• Output power : Low1
• IF bandwidth

: Wide

• CTCSS

: 88.5 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.

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]

±3.3 kHz

[N/M]

±2.1 kHz

±0.68 kHz [N/W]

±0.56 kHz [N/M]

Set to square wave 
form