Icom IC-7800

■ 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.
[NB] for main
[NB] control for sub[NB] control for main
[NB] for sub
q Push [NB] to turn the noise blanker function ON or
OFF.
 •[NB]indicatorabovetheir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 NB set mode
To deal with various type of noises, attenuation level
and noise width can be set in NB set mode.
q Hold down [NB] for 1 second 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.
 •Holddown[F-4•DEF]for1secondtoselectadefault
value.
r Push [EXIT/SET] to exit NB set mode.
5-18
5
FUNCTIONS FOR RECEIVE
Set the noise attenuation level from 1 to 10.
Set the noise pulse width from 1 to 100.