[Elecraft] KDSP2 question

Lyle Johnson kk7p at wavecable.com
Wed Oct 12 12:45:40 EDT 2005


> Is it normal that (according to Spectrogram) my new KDSP2's
> filters have sharper skirts and far less ripple than the XFIL filters?

Almost all the ripple you will see in a plot with spectrogram is the 
rippler from the crystal filters.  The DSP filters have very little 
passband ripple of their own.

The skirts for most of the filters fall off sharply in a couple hundred 
Hertz.  The skirts for the CW "soft" positions are a bit gentler.

73,

Lyle KK7P



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