Re: need some roofing filter advice?

Posted by Barry N1EU on Jul 14, 2011; 1:29pm
URL: http://elecraft.85.s1.nabble.com/need-some-roofing-filter-advice-tp6581353p6583241.html

Bill W4ZV wrote

Barry N1EU wrote

I disagree.  I have switched to full-time use of 200hz 5-pole filters in both receivers for cw, configured as 300hz bandwidth in CONFIG menu.  My width is typically set at 300hz.  For contesting (running and S&P) and 160M dx'ing, this works exceptionally well for me and I feel no need for a wider cw roofing filter.

Yes and no.  Perhaps in extremely crowded contests but maybe not for more casual operating or on sparsely populated bands.  

For more casual operating or on sparsely populated bands, the 1.8Khz filters do just fine for me.  After all, it's 95% dsp.

I find the advantages of the narrow roofing filter greatly outweigh any minor advantage of having a wider cw passband in contests.  When running, they protect me from offending neighbors who would have otherwise ran me off my run freq, which occurs a few times in EVERY contest - far outweighs the one or two off frequency callers I might have missed.  And in S&P, the narrow filters allow me to hear that weak signal right next to that s9+ running station and give me those dx mults in 160M contests.

I removed the 500hz filter pair that I used to also have installed.

Different strokes . . . .

73, Barry N1EU