[RTTY] Filtering AFSK

Tom Osborne w7why at verizon.net
Thu Oct 19 21:25:09 EDT 2006


Hi JT

I have a FT-840 here that I used before I got the '450SAT.  AFSK and no 
filters.  I bought an MFJ-758B DSP audio filter and that helped 1000 
percent.  It would really narrow up those RTTY signals.  If someone came 
close by it would pump the AVC a bit, but I could put up with it with the 
narrower signals.  Also, I used one of the older Autek QF-1A filters for 
years, and it worked good.  Nothing beats some good old narrow filters 
though.  73 and I'll look for you this weekend.
Tom W7WHY


> As we head into JARTS, I'm looking for tips on dealing with this when
> you can't do any filtering on the rig. 



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