[Elecraft] K3 roofing filter group delay

[John Magliacane]

> Don't forget Bessel filters.  These are maximally flat for group delay, but 
> have a much slower rolloff.

John,

What penalty (if any) would occur in cascading identical Bessel filters to
improve roll-off and stop-band attenuation?

Would the overall response still be considered Bessel, or will a point be
reached where the response begins to take on Chebyshev characteristics?

Thanks.


73, de John, KD2BD


Visit John on the Web at:

	http://kd2bd.ham.org/
.
.
.
.


       
____________________________________________________________________________________Looking for a deal? Find great prices on flights and hotels with Yahoo! FareChase.
http://farechase.yahoo.com/