Re: Question re reception BY relay stations

On Thu, 16 Jul 2009 09:23:47 +0100, Mark Carver
<mark.carver@xxxxxxxxxxxxxxx> wrote:

Brian Gaff wrote:
In theory, given the very best reception, the quality loss for chained
stations should be less on digital than at present. I can recall in the 80s
watching in Guernsey with patterning being transmitted on stuff networked
from the mainland.

For my 40th, my ex-wife treated me to a holiday in Jersey so that we
could visit Gerald Durrell's Zoo, which I have supported financially
most of my life ...
http://www.durrell.org/

I too STR some rather iffy TV reception in the hotel room!

ISTR there's some concern ISTR about tandem chains used for DTT.
Re-buffering and re-clocking of the data is going to have to be applied
at each relay station. AIUI this on a chain of 5 or 6 hops will lead to
a delay of 10-20 seconds relative to the 'parent' signal ? Not a
problem as such, but you can forget the pips on R4 Freeview being of any
use at all !!

Seems a crazy way of doing it, why not just get them via satellite,
and have a skeletal terrestrial backup system ready in place in case
of 'hostile action by a foreign agency'?

I would have thought that DSO would have been a great chance to
rethink the whole layout. When they wanted to rebuild the Afghan
phone system after the war, it was easier to base it on mobiles than a
hard-wired structure. Similarly, I would have thought it would be so
much easier to just have transmitters get their signals from
satellite?

Or am I missing something?

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