[opendtv] Re: SECAM's slow death
- From: "Mike Tsinberg" <mike@xxxxxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Sun, 07 Mar 2010 22:50:57 +0000
Mark,
What about the future? Will Internet become main delivery media for all TV
content?
Mike Tsinberg
http://www.keydigital.com
-----Original Message-----
From: Mark Schubin [mailto:tvmark@xxxxxxxxxxxxx]
Sent: Sunday, March 7, 2010 09:03 AM
To: opendtv@xxxxxxxxxxxxx
Subject: [opendtv] Re: SECAM's slow death
Thanks for the trip down memory lane! Don't forget that NTSC is still broadcast
in many countries, including Cuba (which was the world's second country with
regularly scheduled color programming). TTFN, Mark On 3/6/2010 4:44 PM, Olivier
Houot wrote: > At my place, analog switch off will occur within less than 2.5
Months > (May 18th). > > In an effort to pay hommage to the pioneers, i 've
dragged out > my faithful old analog TV set (must be close to 20 years old by
now) > from its dust-gathering corner and put it in front of the dinner table,
> so i can watch SECAM as it was designed to be watched, while it is still >
possible. > > This is a brave endeavor, since the remote has been eaten alive
some > years ago by leaking batteries. Furthermore, the mains switch has become
> inoperative, but there are ways... > > Of course, SECAM will still live in
France in various regions until > November 2011. > Beyond, that, i wonder where
the last transmitter will be switched off. > Perhaps some country in Africa
will have the responsibility of making > SECAM vanish forever from the face of
the earth. Will there be a small > ceremony for that event, or will it
disappear silently? > > Which of the analog standards will be the last on air?
I guess PAL > stands a good chance, but who knows? > > Right now in shops, i
can see heaps of small FujiOnkyo TNT decoders sold > for 19.80 euros, with a
poster above them reminding people of the switch > off date. > > Oh well, I
suppose some amateurs will recreate SECAM signals for the > purpose of reviving
some old TV sets. > Perhaps some of them will even dare broadcasting it at
ultra low power > and short ranges. > > It appears they have already managed to
produce a compliant VHF system E > signal for the purpose of feeding restored
819 lines TV sets, for > example (french site): >
http://819lignes.free.fr/Regarder%20les%20programmes%20actuels%20sur% >
20un%20t%E9l%E9viseur%20819%20lignes.html > They are in fact directly
modulating a 185.25 MHz carrier for video and > a 174.1 MHz carrier for audio
and summing them, to emulate former F8A > channel. A the end of the page, there
is a link to schematics. > > There is also a UK forum about those subjects: >
http://www.vintage-radio.net/forum/forumdisplay.php?f=37 > > With the
disappearance of analog signals, discussions about the relative > merits of the
different standards will become entirely theoretical (and > will be of interest
only to an ever shrinking number of people, of > course). Nevertheless, it
should still be possible to build a digital > simulation of encoders
transmission and decoders and display all three > standards side by side,
starting from a common image source. > > Sigh...I guess standards, even more
than civilizations, should know that > they are mortal. > > > > > > >
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