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[RTTY] Filtered AFSK transmission

To: RTTY Reflector <RTTY@contesting.com>
Subject: [RTTY] Filtered AFSK transmission
From: Kok Chen <chen@mac.com>
Date: Fri, 01 Feb 2013 14:42:37 -0800
List-post: <rtty@contesting.com">mailto:rtty@contesting.com>
Some of you might remember that I had in an earlier posting a week or two ago, 
mentioned that fldigi had no RTTY transmit filtering or waveshaping.

Right on the heels of Elecraft releasing their alpha firmware which includes 
FSK filtering for the K3, the latest version of fldigi now implements AFSK 
waveshaping, so I can now take back the earlier statement :-).

If you have been listening to W1AW's RTTY bulletins since yesterday (Thursday), 
they are now using this version of fldigi.  What this means is that when W1AW 
fires up in the middle of a pileup or contest, they are now much less likely to 
bother you.  (Assuming W1AW fixes some remaining baseband (hum) problems,  
their harmonics were fixed the day after it was reported to this reflector.)

73
Chen, W7AY

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