[Elecraft] APF recording and plot

[Barry]

Barry N1EU wrote:
> 
> If anyone is interested, I posted a recording of APF in action (on/off)
> listening to RA0FF this morning on 160M.  I also plotted the passband
> spectrum of APF filtering.
> 
> http://n1eu.com/k3/k3_apf.htm
> (or simply go to n1eu.com and look under "K3")
> 
> 73, Barry N1EU

Wow!  Elecraft should use that in their advertising!
(the other)  Barry, W2UP

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