[RTTY] AFSK to FSK converter

Bill, W6WRT dezrat1242 at yahoo.com
Mon Sep 17 18:49:52 EDT 2012


ORIGINAL MESSAGE: 
On Mon, 17 Sep 2012 21:20:48 -0000, Rex wrote:

>HEY   GUYS
>
>When you guys get this 2Tone thing all figured out so it works with   FSK 
>and N1MM  then I'll try it again,  All I get now is a continious tone.
>
>I don't understand any of this  ""OOK""  or such stuff.
>
>Rex

REPLY: 
Got it figured out thanks to VE3KI.

Here's the trick (only works with N1MM)

Use two DI windows. Make the first one your regular MMTTY window and make the
second the 2Tone window. The second DI window is receive only, but that's ok.
You get the full benefit of a superior decoder and you can click on call signs
etc as always. I have been testing it our this morning and it works very well
(an understatement).  2Tone is clearly superior to MMTTY at digging weak signals
out of the noise. Try it, you'll like it. 

The only drawback so far is the second DI window does not populate the GRAB box.
Not really a problem, you just click on the call instead of GRABing. 

"OOK" means On Off Keying, i.e. like CW - the keying signal is either there or
it's not. Nothing in between. 

73, Bill W6WRT


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