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22
3
BASIC OPERATION
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10
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19
■
Squelch attenuator
The transceiver has an RF attenuator related to the squelch
level setting. Approx. 10 dB attenuation is obtained at maxi-
mum setting.
The squelch attenuator allows you to set the minimum signal
level needed to open the squelch. The attenuator function can
be deactivated in set mode.
➥
Rotate
[SQL]
clockwise past the 13 o’clock position to ac-
tivate the squelch attenuator.
• Attenuation level can be adjusted up to 10 dB (approx.) between
13 o’clock and fully clockwise position.
NOTE:
The squelch attenuator functions even when the
monitor function is in use. Thus it is recommended to set
the
[SQL]
control between the 10 and 13 o'clock positions
when using the monitor function.
D
Squelch attenuator setting
q
Push
[
F
•
]
to display the function guide.
w
Push
[MENU](V/MHz•SCAN)
(Right band’s)
to enter MENU
screen.
e
Rotate
[DIAL]
to select “SET MODE,” then push
[MAIN•BAND]
to enter set mode.
r
Rotate
[DIAL]
to select “AUTO ATT” then push
[MAIN•BAND]
.
t
Rotate
[DIAL]
to turn the squelch attenuator function ON
and OFF, then push
[MAIN•BAND]
• Select “OFF” to deactivate the squelch attenuator function.
y
Push
[BACK](V/MHz•SCAN)
(Right band’s)
twice to return to
frequency indication.
[
F
• ]
[MENU]
Squelch is
open.
Squelch
attenuator
Squelch
threshold
Shallow
Deep
Noise squelch
Summary of Contents for IC-E2820
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