Audio Precision System One Dual Domani Measuirement Systems
In article , Ian Jackson
wrote:
In message en.co.uk,
Roderick Stewart writes
In article , Don Pearce
wrote:
That was me. It was in Eire. For the last few years they, like the
BBC, made programmes in 625 lines, and used a digital standards
converter to produce the 405-line signals for those with old sets.
Towards the end of 405 line in Eire (last 5 years I think), their
standards converter broke down, and rather than fix it they used a
405 line camera pointed at a 625 monitor (more or less).
I know all about telecine, but teletele? That's a new one.
Actually, it's a very old one. Before they invented clever electronic
ways of converting television standards, that's the way it was done.
Even in the 1970s, although by that time there were electronic
convertors for 625 lines, the only equipment the BBC had for dealing
with 819 line signals was an optical convertor, which amounted in
essence to a camera pointing at a monitor. I'm sure the Irish
broadcasters could have done something more elegant, but maybe they
didn't think it was worth the expense.
The UK 405-line system was almost certainly kept going for far longer
than it really needed to be. There was probably only a handful of people
who could not receive the 625-line service. At the time, I recall that
many of us said that it would be cheaper simply to buy that last little
old lady, living in a remote valley in the middle of nowhere, a new TV
set and aerial.
unless the aerial had a 100+m cable attached it wouldn't be any use if she
really lived in a remote valley in the middle of nowhere. uhf coverage was
not universal - and still isn't.
--
From KT24
Using a RISC OS computer running v5.16
|