Icom IC-F3GS service manual Software Adjustment

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: 146.000 MHz		Top	Loosely	couple a	frequnecy	146.00000 MHz
FREQUENCY		• High/Low switch	: Low	panel	counter to the antenna connec-
[TXF]		• Connect the RF power meter or 50 Ω			tor.
		dummy load to the antenna connector.
		• Transmitting
	2	• Transmitting						146.00146 MHz
OUTPUT	1	• Operating frequency: 146.000 MHz		Top	Connect an RF power meter to				1.0 W
POWER		• High/Low switch	: Low	panel	the antenna connector.
[POWER(LO)]		• Transmitting
[POWER(HI)]	2	• High/Low switch	: High						5.0 W
		• Transmitting
FM	1	• Operating frequency: 146.000 MHz		Top	Connect an FM deviation meter			±4.2 kHz (W-type)
DEVIATION		• High/Low switch	: Low	panel	to the	antenna	connector	±2.1 kHz (N-type)
[MOD]		• Connect the audio generator to the			through the attenuator.
		[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: 160.000 MHz		Top	Connect an FM deviation meter			Set to flat wave
FORM		• High/Low switch	: Low	panel	with an oscilloscope to the			form
[DTCS BAL]		• No audio applied to the [MIC] jack.			antenna	connector	through an
		• DTCS code	: 007		attenuator.
		• Transmitting

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