[Elecraft] Noise Blankers

[Duncan Carter]

The K3 blankers have a considerable range of adjustability of both the 
blanking threshold with seven steps, and the blanking pulse width with 
three steps, with independent settings for hardware blanking and dsp 
blanking.  Hopefully, you can find a setting that will work without 
excess distortion but that may not always be the case if the noise is 
relatively low and the inband signals are not.  There is a learning 
curve.  Blanker effectiveness was one of my criteria  for selecting the K3.

73, Dunc, W5DC

Tom Bickley wrote:
> I'm overdue for a new radio (at least, that's what I am telling my
> XYL). In considering the purchase, unfortunately one of the major
> considerations I must take into account is
> the noise blanker function. I have recently moved to an area with A LOT
> of power line noise. I have high voltage lines around my immediate QTH.
> It is a constant S3 to S5 on all bands above 7 MHz and, sometimes on
> really
> cold mornings, a seperate, additional noise kicks in that takes it to
> S9 or more. I am trying to locate these noise sources but have been
> unable to so far. I must run the noise blanker on my old TS-850s at all times to help me manage this problem. With the NB engaged (which
> is 'always') I have audio distortion created from nearby signals,
> especially stronger  signals within 30
> kc's of my receive frequency, no matter at what level I run either of the noise
> blankers. 
>
> I would like to hear from K3 owners who might have
> 'line noise problems' and know how the noise blanker in your K3 handles
> the problem.  
>
> Mni Tnx / 73 >  K4NA  		 	   		  
>  		 	   		  
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