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Re: 100 and 50 hz DSP filtering

Posted by KK7P on Jul 26, 2011; 10:10pm
URL: http://elecraft.85.s1.nabble.com/100-and-50-hz-DSP-filtering-tp6623915p6623961.html

You are probably using Rx EQ and have your preferred
sidetone pitch peaked to something more than 0 dB.  RxEQ
is not available at these two narrow bandwidths.

Note:  It seems that many people believe that the Rx EQ is
an *additional* filter cascaded with the normal DSP
filter.  It is not.

In general, if you want to apply RxEQ shaping in CW mode,
I recommend that you set your preferred sidetone pitch to
0 dB and use cuts on either side, or for whatever shaping
you prefer, and not use any peaking above 0 dB.  That will
avoid this problem.

73,

Lyle KK7P

> Why is it that there is a significant drop in signal
>level (on CW) when
> either of those two filter widths are selected?
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