Icom HF/VHF/UHF ALL MODE TRANSCEIVER, iC-706MKTMG manual RF gain and squelch, Simple band scope

RECEIVE AND TRANSMIT 4

DRF gain and squelch

The IC-706MKIIG uses the same control, [RF/SQL], to adjust one of either the RF gain or the squelch. [RF/SQL] adjusts either the RF gain or the squelch depending on the operating mode selected and the condition of the RF gain item in initial set mode (p. 51; also see the table at right).

The RF (Radio Frequency) gain is used to adjust the receiver gain.

• This control should be set to the 11 o’clock position for

normal use.

• [RF/SQL] control priority

Initial set mode	USB, LSB,	AM, FM, WFM
setting	CW, RTTY
SQL*1	SQL	SQL
AUTO	RF GAIN	SQL
RF • SQL*2	RF/SQL	RF/SQL

*1Default; *2Default for USA version.

• Shallow rotation moves the S-meter to the right indicating

the signal strength which can be received.

The SQUELCH removes noise output from the speaker (closed condition) when no signal is received. The squelch is particularly effective for FM. It is also available for the other modes.

Note: The recommended position for RF gain is the 11 o’clock position since this sets RF gain to the max.

When set to AUTO, SQL is active in FM/WFM/AM; RF is active in SSB/CW/RTTY.

Max. RF gain position

AF RF/SQL

RF gain	Same effect as at
decreases	the center position

•When operating in FM, first rotate the control fully coun- terclockwise. Then, rotate the control clockwise to the point where the noise just disappears. This is the best position. The squelch does not open for weak signals when it is set too deep.

•A segment appears in the S-meter to indicate the S-meter squelch level.

Noise squelch	S-meter squelch
	threshold point
threshold point
AF	RF/SQL
Squelch	Deep
opens

DSimple band scope

This function allows you to visually “sweep” an area surrounding the set frequency for other signals. Detected signals are indicated graphically in the dot matrix section of the display.

➀Set a mode and frequency.

➁Select G1.

•Push [DISPLAY] 1 or 2 times if M or S appears.

•Push [MENU] one or more times to select G1.

➂Push [F-1] one or more times to select the desired steps.

•Each dot corresponds to a step for the indicated fre- quency.

•0.5, 1, 2, 5, 10, 20 and 100 kHz can be set for the scope step.

➃Push [F-3] to start the sweep.

•“___” (below SWP) flashes while sweeping.

•The receive audio is muted while sweeping.

➄Rotate the main dial if you want to monitor the dis- played signals.

•The sweep marker indicates the location of the dis- played frequency in the sweep readout.

•If the displayed frequency is outside of the sweep read- out (determined by the sweep width), the sweep mark- er flashes.

➅Push [F-2] to return the frequency to the start of a sweep.

•The sweep marker moves back to the center position.

Note: Use the attenuator or turn OFF the preamp when using the band scope on a band containing a lot of noise.

1k	SWP
2k	SWP	([F-1])
		Select sweep width
2k	SWP	([F-3])
		Start sweep
2k	SWP	Sweep is finished
		([F-3] again)
2k	sweep marker
	SWP	(main dial)
		Move sweep marker
2k	SWP	Returns to previous
		frequency ([F-2])

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