2 Oct
2008
2 Oct
'08
2:26 a.m.
On Thu, 2 Oct 2008, Jos Dreesen / Marian Capel wrote:
In addition to radio and teletext, there was also a TV
program in Germany
that transmitted software by burying the data in the first few scanlines of
the videosignal.
The WDR Computerclub transmitted programs this way, this technique was
called Videodat (later on commercialized as Channel Videodat). You
could/needed to buy a Videodat decoder, you can find these occasionally on
flea markets, but they are totally useless today.
While the broadcast was running you would see a small
box in the upperleft
corner where you could actually see the data go by.
I don't think so, the data was transmitted in the same manner as videotext
signals.
Christian