Icom IC-R8500 3ATTENUATOR SWITCHES 10dB/20dB, 4AUDIO PEAK FILTER SWITCH APF p, 7MAIN DIAL

!9

	1 QZ	2 ABC	3 DEF	. ; ,
	OFF DLY ∞			M-CH
	4 GHI	5 JKL	6 MNO	BANK
SEL-CH SKIP-CH	kHz	8 TUV	9 WXY
	M			BANK
IC-R8500
	7 PRS
				ENT
	.	0	CE	ENT
			NAME
	MEMO	PROG	AUTO	PRIO
		SCAN/ SCAN SET
	SEL	SKIP	VSC	DLY D/S

PANEL DESCRIPTION 1

M-SET BANK

M-CL MW

M-CH DELAY/SPEED

!5!6!7!8
Center frequency	Center frequency
is shifted down.	is shifted up.

!2AUDIO PEAK FILTER CONTROL [APF] (p. 15) Adjusts the audio peak filter setting to pick up a de- sired audio frequency. Only valid when the [APF] switch is ON.

•Clockwise rotation adjusts the filter setting higher; coun- terclockwise rotation adjusts the filter setting lower.

!3ATTENUATOR SWITCHES [10dB]/[20dB]

Push to activate one of the attenuators.

➧Push [10dB] to activate the 10 dB attenuator.

➧Push [20dB] to activate the 20 dB attenuator.

➧Push [10dB] + [20dB] to activate the 30 dB attenuator. •10 dB and 30 dB attenuator cannot be used below 500 kHz.

!4AUDIO PEAK FILTER SWITCH [APF] (p. 15)

➥Push momentarily to toggle the audio peak filter circuit ON and OFF.

•Use the [APF] control to adjust the center of the audio peak passband.

➥When the audio peak filter circuit is ON, push for 1 sec. to toggle the filter setting between normal and narrow.

•‘Narrow’ is available for SSB, CW and AM only.

!5SPEECH/LOCK SWITCH [SPCH/LOCK]

➥Push momentarily to activate the voice synthesiz- er function and have the displayed frequency announced.

•An optional UT-102 SPEECH SYNTHESIZER UNIT is nec- essary to activate the voice synthesizer function (p. 38).

•Automatic announcement at signal detection during scan is available. Refer to the “REC SPCH” item on

p. 31 for details.

➥Push for 1 sec. to activate the lock function (p. 12).

•Push for 1 sec. again to cancel the lock function.

•The lock function action can be selected in set mode to cover the main dial only, or to cover both the main dial and front panel switches.

!6TUNING STEP SWITCHES [TS▲]/[TS▼] (p. 12)

Select the tuning step for the main dial. Push [TS▲] to select a larger tuning step; push [TS▼] to select a smaller tuning step.

•10 Hz, 50 Hz, 100 Hz, 1 kHz, 2.5 kHz, 5 kHz, 9 kHz, 10 kHz, 12.5 kHz, 20 kHz, 25 kHz, 100 kHz and 1 MHz are selectable.

•Programmable tuning steps can be set between 0.5 and

199.5 kHz.

➠To set programmable tuning steps, enter the desired steps via the keypad, then push [TSY]or [TSZ].

!7MAIN DIAL

Changes the operating frequency, set mode contents, etc.

!8BRAKE ADJUSTMENT SCREW Adjusts the main dial tension.

!9FUNCTION DISPLAY (p. 6)

Shows the selected frequency, mode, memory name, etc.

@0S-METER

➥Shows the strength of the received signal.

➥Shows the squelch threshold level when the [SQUELCH] is rotated past the center position.

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