[Elecraft] need some roofing filter advice?

Ed Muns w0yk at msn.com
Wed Jul 20 13:17:32 EDT 2011


I "fiddled" with HI CUT a lot at first, to determine how narrow I could go
and still maintain excellent intelligibility.  Once I settled on 1500 Hz, I
asked INRAD to make some 1500 Hz roofing filters (actually about 1600 Hz)
for contest work.  Like you, my SSB bandwidth (DSP: 1500 Hz, crystal filter:
1600 Hz) hasn't been touched for three years.

Ed - W0YK

Iain,  N6ML, commented:
> Personally, I leave mine set at 1800 width, 1050 shift (the 
> net effect of dialing the HI-cut down until the the width is 
> 1800) all the time, and SSB sounds fine to me. I haven't 
> touched those controls in SSB mode in a long time. I may be 
> missing out on some benefit of fiddling with it. I generally 
> only use SSB for DXing and some contesting, so "fidelity" 
> isn't an issue!



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