[RTTY] Filtering AFSK

Bill Turner dezrat at copper.net
Sun Oct 22 12:34:18 EDT 2006


I see you have received some good answers on how to deal with a rig
that uses AFSK and can not narrow down the passband on SSB. Those
suggestions will help.

But... if you become a serious RTTY operator, you need a better rig,
one which will operate FSK instead of AFSK and has appropriate
filters. If money is an issue, I'd recommend a good used Kenwood
TS-870s and if money is not an object, an ICOM IC-756 PRO III. Either
one is an excellent performer on RTTY. The PRO III was designed from
the ground up for RTTY, having a dedicated RTTY mode which includes a
filter/limiter system and also has a spectrum scope which is usable on
any mode, not just RTTY, and is excellent for taking a quick look at
an apparently dead band to see if there is any activity. 

I have owned both and you will not be disappointed with either.

Bill, W6WRT


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