[Elecraft] NB Question.....It says off but there is a difference..............

[Guy Olinger K2AV]

The DSP and IF noise blanking are distinct and operate in series when both
are on.

IF NB shuts off the IF for a very short time when spike is detected. The
timing and width of that depends on the IF setting. The DSP NB does various
things in the number soup after the analog to digital converter.

The NB button toggles either or both IF DSP NB depending if either type is
OFF in the settings.

DSP 2-7 and IF narrow 4 on at the same time take out my particular
160m power buzz that comes and goes around here. Good for four s-units of
suppression which gets us back down to the regular nighttime S4 cr*p. Same
radio at other locations takes other settings to handle THEIR particular
noise.

73, Guy K2AV

On Tuesday, November 10, 2015, Oliver Dröse <droese at necg.de> wrote:

> Might it be you still have the DSP NB on, Jim? There are 2 different
> settings for the IF (hardware) and DSP NB ...
>
> 73, Olli
>
> Contest, DX & radio projects: http://www.dh8bqa.de
>
>
> Am 10.11.2015 um 22:31 schrieb jim:
>
>> When I set the NB level to "IF Off" and then turn the NB on and off, there
>> is a
>>
>> Distinct difference in the audio between NB on or NB off (again with the
>> level set at IF Off)
>>
>>
>> Comments
>>
>>
>> Tnx
>>
>>
>> Jim
>>
>> W6AIM
>>
>>
>>
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