Noise Blanker; D Nb Set Mode - Icom IC-7800 Instruction Manual

5
FUNCTIONS FOR RECEIVE

■ Noise blanker

[NB] for main [NB] for sub
[NB] control for main [NB] control for sub

D NB set mode

Set the noise attenuation level from 1 to 10.
Set the noise pulse width from 1 to 100.
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 [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.
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.
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