[IRCA] HD Noise filtering

[mwdxer@xxxxxxxxx (Patrick Martin)]

I have been doing a bit of playing with filtering tonight. First the IF
filters on the R8. I find the .5 khz filter for CW does a great job on
removing the hash. By tuning the passband you can clean out the majority
of the hash even on a strong signal like KGO or KEX. However .5 khz is
to narrow to understand what is left. I wonder if maybe a 1 khz filter
and some audio filtering might do the trick? I should hook up the QF-1
audio filter and see what I can do with that.

73,

Patrick 

Patrick Martin
KAVT Reception Manager

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