Larry,
The best way that I can think of is to encourage you to try both and
draw your own conclusions of the merits of each.
I cannot envision when *you* would want to use one over the other, my
ear/brain combination will work differently than yours. Listen to both
and decide. I would say that you would want to experiment under
conditions of heavy QRM as well as heavy QRN or a combination of both -
that is where such extreme narrow filtering would be effectively used -
one cannot do a reasonable evaluation on an empty band.
No math involved in that - just listen and let your own judgment provide
your answer - it is a matter of perception, and each of us perceives
differently, that is why you have a choice with the K3.
73,
Don W3FPR.
KB5DXY wrote:
There is no third grade level explanation of these concepts. All discussions
I have ever read trying to understand IIR, FIR and DSP in general have used
high level math (read calculus). I went as far as Algebra II in school and
that was over forty years ago. I have no chance of reading about DSP in the
ARRL Handbook or Experimental Methods in RF Design and understanding these
functions.
How about a discussion of what these filters actually do for you and why you
might want to use each one. Telling me IIR filters have feedback and FIR
filters don't is good information but why do I care? What does each filter
actually do for me and when should I use each one?
Remember, no math and don't give me a source to go read about them unless
that source doesn't use math in the explanation.
--... ...--
Larry
KB5DXY
_______________________________________________
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
