Icom IC-F3GS, IC-F3GT service manual Software Adjustment, Txf

5-3 SOFTWARE ADJUSTMENT

Select an operation using [↑] / [↓] keys, then set specified value using [←] / [→] keys on the connected computer keyboard.

ADJUSTMENT		ADJUSTMENT CONDITION			MEASUREMENT				VALUE
				UNIT		LOCATION
REFERENCE	1	• Operating frequency:		Top	Loosely	couple a	frequnecy	136.00000 MHz
FREQUENCY		136.000 MHz (L-band)		panel	counter to the antenna connec-				(L-band)
[TXF]		146.000 MHz (H-band)			tor.			146.00000 MHz
		• High/Low switch	: Low						(H-band)
		• Connect the RF power meter or 50 Ω
		dummy load to the antenna connector.
		• Transmitting
	2	• Transmitting						136.001360 MHz
									(L-band)
								146.001460 MHz
									(H-band)
OUTPUT	1	• Operating frequency:		Top	Connect an RF power meter to				1.0 W
POWER		136.000 MHz (L-band)		panel	the antenna connector.
[POWER (LO)]		146.000 MHz (H-band)
		• High/Low switch	: Low
		• Transmitting
[POWER (HI)]	2	• High/Low switch	: High						5.0 W
		• Transmitting
FM	1	• Operating frequency:		Top	Connect an FM deviation meter			±4.1 kHz (W-type)*1
DEVIATION		136.000 MHz (L-band)		panel	to the	antenna	connector	±3.3 kHz (M-type)
[MOD]		146.000 MHz (H-band)			through the attenuator.			±2.0 kHz (N-type)*1
		• High/Low switch	: Low
		• Connect the audio generator to the
		[MIC] jack and set as
			: 1.0 kHz/150 mVrms
		• Set the FM deviation meter as:
		HPF	: OFF
		LPF	: 20 kHz
		De-emphasis	: OFF
		Detector	: (P–P)/2
		• Transmitting
DTCS WAVE	1	• Operating frequency:		Top	Connect an FM deviation meter			Set to flat wave
FORM		143.000 MHz (L-band)		panel	with an oscilloscope to the			form
[DTCS BAL]		160.000 MHz (H-band)			antenna	connector	through an
		• High/Low switch	: Low		attenuator.
		• No audio applied to the [MIC] jack.
		• DTCS code	: 007
		• Transmitting

*1W/N-type must adjust both (W-type) and (N-type).

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