[RTTY] Crazy Idea for FSK

[Dave Hachadorian]

Well, I guess you COULD do it that way.

Here's a better way though:
http://lists.contesting.com/archives//html/RTTY/2007-11/msg00131.html


Dave Hachadorian, K6LL
Yuma, AZ


----- Original Message ----- 
From: "Lee Buller" <k0wa at swbell.net>
To: "RTTY Reflector" <rtty at contesting.com>
Sent: Wednesday, February 13, 2008 9:37 PM
Subject: [RTTY] Crazy Idea for FSK


>
> I'm not new to RTTY, but I have just renewed my interest 
> in the mode over the past two years.  I just joined this 
> reflector.
>
> One of the issues I find with RTTY is the lack of FSK 
> through software.  Yes, I know that MMTTY does do FSK, but 
> I am not in love with the way they do it.  You have to 
> have the RS232 port or the LPT1 ports to do it and some 
> CPUs just don't have them anymore with the USB port taking 
> things over.
>
> Here is the crazy idea....a reverse terminal unit.  How 
> about decoding the tones coming out of the soundcard in 
> AFSK and turning them into to switched pulses.  Now I am 
> not an electronics engineer or even close, but that would 
> solve the problem of FSK....just demod the output of the 
> soundcard and then use that on the FSK line of any rig. 
> One could do this with a couple of 567(?) decode chips are 
> what ever is on the market at this time.  Heck, I think 
> you could do it with one chip.  Use an optoisolator to key 
> the rig.  FSK!
>
> Anybody like the idea or is it just crazy?
>
> Lee - K0WA
> "Think out of the box"
>
>
> In our day and age it seems that Common Sense is in short 
> supply.  If you don't have any Common Sense - get some 
> Common Sense and use it.  If you can't find any Common 
> Sense, ask for help from somebody who has some Common 
> Sense.  Is Common Sense divine?
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