[CQ-Contest] Re: Choice of CW Narrow filters

[Scott Ellington]

n6tr at teleport.com wrote:
.
> 
> I recently discovered the power of this DSP when doing moonbounce
> work on six meters.  I have always thought that you had to use really
> narrow filters on your receiver to hear weak EME signals.  However,
> what I found was that it was EASIER to copy weak EME signals using
> the SSB bandwidth positions!

I've observed the same thing on HF.  In the absence of strong QRM, a weak
signal is just as easy, or easier, to copy with a wide bandwidth.  Since wide
filter bandwidth clearly must reduce the S/N ratio, the effective bandwidth
organic DSP must be much smaller.  Quite amazing.

73,

Scott  K9MA
-- 


Scott Ellington
sdelling at facstaff.wisc.edu
Madison, Wisconsin    USA


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