Noise Blanker; D Nb Set Mode - Icom IC-7700 Instruction Manual

5
FUNCTIONS FOR RECEIVE

■ Noise blanker

[NB] control
NB

D NB set mode

NB Depth
NB Width
The noise blanker eliminates pulse-type noise such
as the noise from car ignitions. The noise blanker is
not available for FM mode.
q Push to turn the noise blanker function ON
NB
or OFF.
• [NB] indicator above this switch lights green.
w Rotate [NB] control to adjust the noise blanker
threshold level.
When using the noise blanker, received signals
may be distorted if they are excessively strong or
for other types of noise than impulse. Turn the noise
blanker OFF, or rotate [NB] control to a shallow po-
sition in this case.
To deal with various type of noise, attenuation level
and noise blanking duration can be set in NB set
mode.
q Push and hold
mode.
w Push [Y]
F-1
item.
e Rotate the main dial to set the desired level or
value.
• Push and hold [DEF]
value.
r Push EXIT/SET
Set the noise attenuation level from 1 to 10.
Set the blanking duration from 1 to 100.
5-16
for 1 sec. to enter NB set
NB
or [Z] to select the desired
F-2
for 1 sec. to select a default
F-4
to exit NB set mode.
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