[Elecraft] Help with IF Noise, DSP Noise, NR settings
Don Wilhelm
donwilh at embarqmail.com
Fri Jun 14 14:18:17 EDT 2019
It may be better said that a Noise Blanker responds best to impulses
with a fast rise time like ignition noise from a gasoline engine. It
does not have to be repetitive (but often is).
73,
Don W3FPR
On 6/14/2019 2:05 PM, Wes wrote:
> I have one little nit to pick with this. In a properly designed
> blanker, there is no requirement that the noise be repetitive; blanking
> should occur on a single pulse or on random pulses. Blanking becomes
> ineffective when 1) an undesired signal appears in the detection
> bandwidth that exceeds the threshold and triggers the blanker more or
> less continuously or 2) the duration of the noise pulse is so long that
> intelligibility suffers. Atmospherics fall into this latter category.
>
> See: http://k6mhe.com/n7ws/Noise_Blanker.pdf for more of my opinion on
> this. (The missing text in the last paragraph was not my fault.)
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