For relative newbies to CW such as myself, narrow filters
are a necessity. It's all that I can handle to copy code
at 18-20 WPM without the distraction of 2 or 3 other signals
in the passband banging away at my brain. I have noticed
that the real experts in my club often leave the filters
wide open and ignore the ones they aren't working, whereas
I have to narrow it down to at least 700 Hz to get clear
copy, 400 Hz is my default, and it drives me nuts when I go
down to 200 Hz and can *still* hear a second signal in the
passband!
Cathy
N5WVR
The example you give a wide open filter is a good
idea, once you learn how to process that info
mentally.
But... In search and pounce, I prefer relatively
narrow filtering.
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