Re: De-Lurk Plus Why Bother with DTT?

On Mon, 30 Jan 2006 14:06:39 +0000, Angus Rae <Angus.Rae@xxxxxxxx>
wrote:

>Cardman wrote:
>> So 28.2 east has a high elevation from the UK at least. All about 27
>> degrees I guess.
>
>You're not in Scotland then. 18 degrees elevation to Astra 2 for the
>middle of the Highlands (and it's only 26 degrees on the South Coast,
>according to the Astra dish installation assistant).

Yes, I did a quick estimate for my location from memory.

>The Highlands also have glaciated valleys, which are approximately U
>shaped. This means that there's either a lot of flat land at the bottom
>which people have colonised over the years or a loch, which generally
>people have populated the edges tof. There are also very steep sides,
>large mountains, and so on. This means that a great many people cannot
>see any satellites in geosync at all - the arc is completely blocked -
>or if they can see the arc it's a limited slot of it they can see. I
>know of one area where Astra 1 is visible but Astra 2 is blocked
>completely (the shutdown of analogue Sky services on Astra 1 was not met
>by screams of joy there, I can tell you) and an area where the reverse
>is true (they were happy though).

I would fine it hard to believe that many places would have the entire
geostationary orbit over the equator blocked. And it is true to say
that there is much more than Sky Digital to see up there.

My line of sight (LOS) is from 75 east to 58 west. That is quite a lot
larger than I expected from my location.

In any case I would never live in a house that did not have a good
LOS.

>There are also a great many areas in England and Wales where there are
>similar problems.
>
>Many, many hills _are_ that bad.

Fine, I believe you. It is just that in my 7 years as a satellite
reception equipment supplier that I have never heard anyone mention
"hill" as the cause of their reception problems.

Hills I do know cause terrestrial reception problems though.

Cardman
http://www.cardman.org
http://www.cardman.com
http://www.cardman.co.uk
.