ICOM ic-2720h Manuale Istruttivo

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3

■ Receiving

q Set the audio level for the main band.

➥ Push the desired band’s [MAIN•BAND].

➥ Push [DUP•MONI] for 1 sec. to open the squelch.

➥ Rotate the main band’s [VOL] to adjust the audio level.

➥ Push the [DUP•MONI] for 1 sec. to close the squelch.

w Set the squelch level.

➥ Rotate the main band’s [SQL] fully counterclockwise in

advance, then rotate the [SQL] clockwise until the noise
just disappears.

• When interference is received, rotate the [SQL] clockwise

again for attenuator operation. (p. 17)

e Set the operating frequency in the main band. (pgs. 11–13)
r When receiving a signal on the set frequency, squelch

opens and the transceiver emits audio.

• “BUSY” appears and the S/RF

indicator shows the relative
signal strength for the re-
ceived signal.

✔CONVENIENT!

The main band’s audio and squelch level can also
be adjusted with [

VOL

Y(TONE-1)]/[

VOL

Z 0(TONE-2)]

and [

SQL

Y

D(MUTE)]/[

SQL

Z

#(16KEY-L)], respectively.

• “VOL” for audio or “SqL” for squelch appears during set.

■ Monitor function

This function is used to listen to weak signals without disturb-
ing the squelch setting. 

➥ Push [DUP•MONI] for 1 sec. to open the squelch.

• Push [MIN•BAND] to select the desired band (left or right) as the

main band in advance.

• “BUSY” blinks.
• Push [DUP•MONI] for 1 sec. again to cancel the function.

➥ Push [

MONI

1(BANK)] to open the squelch.

• Push [BAND] to select the desired band (left or right)

as the main band in advance. 

• Push [

MONI

1(BANK)] again to cancel the function.

NOTE: When the [SQL] adjustment is set too far clock-
wise, (12–5 o’clock position) the squelch attenuator is acti-
vated. To monitor weak signals on the operating frequency,
deactivate the squelch attenuator function. See pg. 17 for
details.

MONI

1

Push [DUP•MONI]
for 1 sec.

Show set  level.

SQLY/Z

D/#

VOLY/Z

M/0

Appears when receiving a signal.

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