Icom IC-7850 Instruction Manual page 22

1
PANEL DESCRIPTION
Front panel (Continued)
■
#1
#2
#3
#4
#5
#1 SQUELCH CONTROL [SQL]
Rotate to adjust the squelch threshold level. 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 other modes.
• 11 to 12 o'clock position is recommended for any setting
of the [SQL] control.
Squelch
threshold
#2 NOISE BLANKER KEY [NB]
Push to turn the noise blanker ON or OFF.
➥
The noise blanker reduces pulse-type noise such
as that generated by automobile ignition systems.
This function cannot be used in the FM mode, or
for non-pulse-type noise.
• The [NB] indicator above this key lights white while
the function is activated.
Hold down for 1 second to enter the Noise blank-
➥
er set mode.
(p. 4-4)
Noise squelch
S-meter
Squelch
squelch
is open.
(p. 7-11)
%0
#6 #7
#3 NOISE REDUCTION KEY [NR]
Push to turn the DSP noise reduction ON or OFF.
• The [NR] indicator above this key lights white when the
function is activated.
#4 NOISE REDUCTION LEVEL CONTROL [NR]
(p. 7-12)
Adjusts the DSP noise reduction level when the noise
reduction is in use. Set for maximum readability.
• To use this control, push the appropriate Main or Sub
band's [NR].
#5 NOISE BLANKER CONTROL [NB]
Adjust the noise blanker threshold level.
• To use this control, push appropriate band's [NB] key.
#6 LOCK INDICATOR [LOCK]
Lights when the dial lock function is activated.
#7 FUNCTION DISPLAY
Shows the operating frequency, function key menus,
Spectrum scope screen, Memory channel screen,
Set mode settings, and so on.
1-6
$9 $8 $7 $6
#8 #9 $0 $1
(p. 7-12)
(p. 7-11)
(p. 4-12)
(p. 1-14)
$5 $4 $3
$2