[Elecraft] K4 noise blanking

[Wayne Burdick]

Wes,

The HD model will include per-receiver hardware noise blanker modules, similar to a dual-receive K3S. 

All models will have enhanced DSP-based blanking, supplemented by fast-pulse blanking in the FPGA, which is similar to the function of hardware blanker. 

And yes, the UI will be simplified. 

Wayne
N6KR

----
elecraft.com

> On Jul 31, 2019, at 10:20 AM, Wes <wes_n7ws at triconet.org> wrote:
> 
> Since the basic K4 is direct sampling, I don't see there being a hardware blanker.  On the other hand, the "HD" will be superhet with crystal filtering.  Crystal filters delay and stretch noise pulses, making subsequent software blanking less effective.
> 
> So, my first question is, will there be a hardware blanker ahead of the crystal filtering and will there be some delay in the signal path to compensated for time delays in the noise channel?
> 
> Second, with there be enough "smarts" in the blanking system so an operator doesn't have to wade through 400+ settings?
> 
> Wes  N7WS
> 
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