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

SOFTWARE ADJUSTMENT – continued

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

ADJUSTMENT	ADJUSTMENT CONDITION			MEASUREMENT	VALUE
			UNIT	LOCATION
RX	1 • Operating frequency:		Top	Connect a SINAD meter with an	Minimum distortion
SENSITIVITY		136.000 MHz (L-band)	panel	8Ω load to the [SP] jack.	level
[BPF T1] –		146.000 MHz (H-band)
[BPF T4]	• Connect a standard signal generator to
	the antenna connector and set as:
	Frequency	: 136.000 MHz (L-band)
		: 146.000 MHz (H-band)
	Level	: 5.6 µV* (–92 dBm)
	Modulation	: 1 kHz
	Deviation	: ±3.5 kHz (W-type)*1
		±2.8 kHz (M-type)
		±1.75 kHz (N-type)*1

•Set the NARROW ch. [W/N-type] only

•Receiving

		CONVENIENT: The BPF T1–BPF T4 can be adjusted automatically.
			-1: Set the cursol to “BPF ALL” on the adjustment program and then push [ENTER]
			key.
			-2: The connected PC tunes BPF T1–BPF T4 to peak levels.
			or
			-1: Set the cursol to one of BPF T1, T2, T3, or T4 as desired.
			-2: Push [ENTER] key to start tuning.
			-3: Repeat -1 and	-2 to perform additional BPF tuning.
SQUELCH	1	• Operating frequency:		Top	Connect a SINAD meter with an	12 dB SINAD
LEVEL			136.000 MHz (L-band)	panel	8Ω load to the [SP] jack.
[SQL]			146.000 MHz (H-band)
		• Connect a standard signal generator to
		the antenna connector and set as:
		Frequency	: 136.000 MHz (L-band)
			146.000 MHz (H-band)
		Level	: OFF
		Modulation	: 1 kHz
		Deviation	: ±3.5 kHz (W-type)*1
			±2.8 kHz (M-type)
			±1.75 kHz (N-type)*1
		• Receiving
	2	• Receiving				At the point where
						the audio signals
						just appears.

*The output level of the standard signal generator (SSG) is indicated as the SSG’s open circuit.

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

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