[GreenKeys] Xitex video terminal/CW Decoder

K0BX k0bx at arrl.net
Fri Jan 1 18:28:26 EST 2010


I had a Xitex video board for a while, it worked well.

But the thing that I had from Xitex was a CW Decoder.  It had a 28 
character buffer with a two digit readout to tell you how much buffer 
was available.
What made this decoder unique was that it would output in 5 level baudot 
and key a 60 mil loop.

So I was sending and receiving CW with my model 28ASR!!  I built it from 
a kit and it worked very well.  The Xitex people even had a special 
baudot mode where the CR/LF's and other control characters had their own 
unique CW character.
That way if two of them were chatting on the air, you could even decode 
the CW cr/lf's.

Of course this Decoder would also output in ASCII and drive their Video 
terminal or any other video terminal.

I wonder if anyone remember this decoder??

Joe K0BX

Dino Papas wrote:

>Believe it or not I actually have one of these sitting in the closet as well.  Now here's the cool (or dumb as the case may be) story.....I built this thing up and used it for a short time on RTTY before building a RTTY I/O for my Apple II.  I then sold the Xitex box I'd built at a hamfest....several years later at another hamfest what did i run across?  You guessed it, a guy selling my box....I just had to have it back!  So, there it sits in the closet waiting for a day when I need a retro project to work on.
>
>Dino KL0S
>
>On 1Jan2010, at 6:09 PM, Chris Elmquist wrote:
>
>  
>
>>On Friday (01/01/2010 at 01:53PM -0600), Jack Rubin wrote:
>>    
>>
>>>>A large board, a Zitex SCT--100 video display board was 
>>>>located in the upper portion of the unit, but had broken 
>>>>free of its mounts during shipping (or before), and was 
>>>>basically laying on the main board of the unit. By googling 
>>>>the board, I was able to identify it.
>>>>
>>>>Now, is anyone familiar with this modification? Have any 
>>>>documentation? I suspect it was used to make the unit a 
>>>>standalone terminal with composite video display...
>>>>
>>>>Does anyone have any more information?
>>>>        
>>>>
>
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