Satellite installation - no signal

tony sayer wrote:

Consider at the equator it the dish would point straight up say at 90
degrees elevation

Not normally. The elevation angle could be anything from 0deg to 90deg
at the equator, depending on the orbital slot.

Bill

Geoff Pearson wrote:


Yes. In Edinburgh my big dish is vertical but in Shetland they point
downwards - and the Freesat beam is narrower than the Sky ones. In
Spain the dishes point up into the sky.

Are you taking the **** or are you really that thick?
--
Adrian

"Adrian" wrote in message
news
Geoff Pearson wrote:


Yes. In Edinburgh my big dish is vertical but in Shetland they point
downwards - and the Freesat beam is narrower than the Sky ones. In Spain
the dishes point up into the sky.

Are you taking the **** or are you really that thick?
--
Adrian

I do apologise - but these are the facts - the science cannot be faulted.
The dish points as I say but the beam is offset from the axis of the dish.
Perhaps you don't get out much?

Adrian wrote:

Geoff Pearson wrote:

Yes. In Edinburgh my big dish is vertical but in Shetland they point
downwards - and the Freesat beam is narrower than the Sky ones. In
Spain the dishes point up into the sky.

Are you taking the **** or are you really that thick?

Well, the LNB is offset to the bottom of the dish to allow vertical
mounting, which has several advantages. I presume that Shetland has too
small a market for custom dishes so the offset LNB on UK dishes would
indeed result in the dish being angled slightly downwards, although of
course the Satellite is above the horizon at 17 degrees elevation. Dunno
what he means about the Freesat beam. Dishes in Spain are angled upwards,
because if the LNB was offset enough for vertical mounting then the dish
would become hopelessly inefficient.

"Dave Farrance" wrote in message
...
Adrian wrote:

Geoff Pearson wrote:

Yes. In Edinburgh my big dish is vertical but in Shetland they point
downwards - and the Freesat beam is narrower than the Sky ones. In
Spain the dishes point up into the sky.

Are you taking the **** or are you really that thick?

Well, the LNB is offset to the bottom of the dish to allow vertical
mounting, which has several advantages. I presume that Shetland has too
small a market for custom dishes so the offset LNB on UK dishes would
indeed result in the dish being angled slightly downwards, although of
course the Satellite is above the horizon at 17 degrees elevation. Dunno
what he means about the Freesat beam. Dishes in Spain are angled upwards,
because if the LNB was offset enough for vertical mounting then the dish
would become hopelessly inefficient.

The Freesat beam is narrower to avoid rights issues by broadcasting to
unlicensed territory - like Spain. It can make reception in southern Spain
tricky without a big dish.

On 27/06/2011 16:53, Geoff Pearson wrote:


The Freesat beam is narrower to avoid rights issues by broadcasting to
unlicensed territory - like Spain. It can make reception in southern
Spain tricky without a big dish.

You actually mean the Astra 2D beam, which is UK specific, which is
where the FTA services are located. The same beams and streams serve
both 'Freesat' and the free services on 'Sky'.

--
Mark
Please replace invalid and invalid with gmx and net to reply.

www.paras.org.uk

"Mark Carver" wrote in message
...
On 27/06/2011 16:53, Geoff Pearson wrote:


The Freesat beam is narrower to avoid rights issues by broadcasting to
unlicensed territory - like Spain. It can make reception in southern
Spain tricky without a big dish.

You actually mean the Astra 2D beam, which is UK specific, which is where
the FTA services are located. The same beams and streams serve both
'Freesat' and the free services on 'Sky'.

--
Mark
Please replace invalid and invalid with gmx and net to reply.

www.paras.org.uk

A helpful clarification.

In article , Bill Wright
scribeth thus
tony sayer wrote:

Consider at the equator it the dish would point straight up say at 90
degrees elevation

Not normally. The elevation angle could be anything from 0deg to 90deg
at the equator, depending on the orbital slot.

Bill

Jeezz ... another Northern smart botty.

I somehow doubt the elevation would be as low as 0 deg.

I think you mean the Azimuth would be dependent on the orbital position.
--
Tony Sayer

tony sayer wrote:
In article , Bill Wright
scribeth thus
tony sayer wrote:

Consider at the equator it the dish would point straight up say at 90
degrees elevation
Not normally. The elevation angle could be anything from 0deg to 90deg
at the equator, depending on the orbital slot.

Bill

Jeezz ... another Northern smart botty.
Tony, you're as much a northerner as me!


I somehow doubt the elevation would be as low as 0 deg.
It's possible in theory, if the satellite transmitted enough power in
that direction to overcome atmospheric absorption (which is unlikely for
several reasons), and if you overlooked the sea or lower ground.

Bill

On 26/06/2011 10:41, Alan wrote:
In message m, Rob
wrote

I say 'google maps' - it's an overlay from one of the satellite
finding sites. I set the direction (azimuth) by prominent building
line of sight. That was my first problem.

If it was the Dishpointer site were you aware that you could have
clicked on the end point of the satellite line and dragged it to the
location where you have installed the dish?

Yes, thanks - did that and printed it off.

Rob