[RTTY] best hardware RTTY decoder?

[k0bx at arrl.net]

I found that the soundcard based decoders were the best at copying very low audio signals.  RITTY was the best and MMTTY works very well.

The external TU's that I used, ST-6, Doventron, PK-232 all did a good job but it took more audio from the tones to decode.  This is not say that I didn't make thousands of contacts over the years with these.

I find that I can copy a rtty station easier with an antenna at 70 feet than at 50 feet.

Joe K0BX


Stop the insanity!

Please do not add me to any distribution lists (Joke, Stories or Junk) without my permission.

--- On Mon, 8/30/10, Bill, W6WRT <dezrat1242 at yahoo.com> wrote:

From: Bill, W6WRT <dezrat1242 at yahoo.com>
Subject: Re: [RTTY] Anyone Have a DXP38 For Sale?
To: "RTTY Reflector" <rtty at contesting.com>
Date: Monday, August 30, 2010, 12:40 AM

ORIGINAL MESSAGE:

On Sun, 29 Aug 2010 20:34:50 -0700, Dick Flanagan K7VC <dick at k7vc.com>
wrote:

>Is there a widely accepted best hardware RTTY decoder?  (Computer 
>software and radio left out of the equation for the moment)?

REPLY:

The best hardware decoder I ever used personally was the HAL ST-8000.
I have also used the DXP-38, the KAM (not the pro version) and the AEA
DSP-232. 

I ran them all side by side with identical audio feed against each
other and against the software programs MMTTY and RiTTY by K6STI.

My observation was the ST-8000 and RiTTY by K6STI were tied for best
decoding under weak signal conditions, MMTTY was next best, the DXP-38
next, the KAM next and the AEA unit a very poor last. 

The AEA DSP-232 was so poor it was pulled off the market very quickly
and disappeared into history. This is NOT the AEA PK-232, which I have
not tested and is far more popular than the DSP-232. How the PK-232
compares to the others I can't say, but a lot of people are still
using it today so it must be fairly good.

Hope this helps. 

73, Bill W6WRT
 
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