[RTTY] Baudot paper tape?

Barry w2up@mindspring.com
Thu, 11 Apr 2002 22:40:07 -0000


Sorry about that. I looked again, and Chen is correct. I could have 
sworn there were 5 columns when I first saw it... Regarding RTTY 
DXpeditions, maybe they got big guys, like K5DJ, to carry the TTYs on 
their backs...
Barry


On 11 Apr 2002 Kok Chen wrote:

> <w2up@mindspring.com> wrote:
> 
> > While looking for some airline deals, I went to www.orbitz.com. After
> > entering cities, dates, etc., and clicking on search, you get a "please
> > wait screen." Part of the screen includes a 5 bit tape moving across. I
> > wonder if there really is a message on that tape?!
> 
> Barry told me to go look at the Orbitz web site and I did.
> 
> That ain't no punched tape :-).
> 
> First of all, there are no sprocket holes (small pre-punched holes
> used in the mechanical days for sprockets to drive the tape, and in
> later day readers to get a "clock" signal when passing the tape
> through an optical reader).
> 
> Secondly, there are only three "holes" per column!
> 
> Each hole has more than one level of gray, though, so each column
> of tape carries more than 3 bits of datum :-) :-).
> 
> How did Dxpeditions do RTTY in the Model 19 days?!
> 
> 73
> Chen, AA6TY
> 
> 
> 
> 
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--
Barry Kutner, W2UP              Internet: w2up@mindspring.com
Newtown, PA                     Frankford Radio Club