Icom IC-7700 - Manual (Page 104)

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Noise blanker
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
and 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 the
noise type is other than impulse. Turn the noise
blanker OFF, or rotate [NB] control to a shallow po-
sition in this case.
D D NB set mode
To deal with various type of noises, attenuation level
and noise blank time can be set in NB set mode.
q Push and hold for 1 sec. to enter NB set
mode.
w Push [F-1• Y ] or [F-2• Z ] to select the desired item.
e Rotate the main dial to set the desired level or value.
• Push and hold [F-4•DEF] for 1 sec. to select a default
value.
r Push to exit NB set mode. EXIT/SET
NB
NB
[NB] control NB
5-16
5
FUNCTIONS FOR RECEIVE
Set the noise attenuation level from 1 to 10.
NB Depth 8
Set the blank time from 1 to 100.
NB Width 50