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tony sayer tony sayer is offline
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Default Fractal antennae

In article , Martin Brown |||newspam|||
@nezumi.demon.co.uk scribeth thus
On 08/04/2015 14:42, Capitol wrote:
tony sayer wrote:
In articleNb2dnagS9oT1crnInZ2dnUVZ8tOdnZ2d@brightvie w.co.uk, Capitol
scribeth thus
tony sayer wrote:
In article6MydnfbUCciHQb7InZ2dnUVZ8tadnZ2d@brightvie w.co.uk, Capitol
scribeth thus
Martin Brown wrote:

Unless you are a big fan of Dave why not install FreeSat? I doubt if
pigeons can do much harm to a dish beyond adding "dielectric
coating".

Doesn't really suit8 TV receiver locations& 6 recording
locations.

Well using a "multiswitch" does that...

Can't see how that helps.

Right U use a certain type of LNB which has four outputs. IIRC its
called a Quad or Quattro. Each one of the outputs which receives signals
is on either the upper or lower part of the band and vertical or
horizontal polarisation.

Each outlet then can take whichever one of the four inputs it needs and
by such means a lot of receivers etc can get a feed..


It does require a satellite tuner on the end of each though.

So, you are limited to 4 channels at a time? Incidentally, loft
aerials don't work very well in this location, the additional problems
of a low pitched concrete roof and rain/snow etc rather rules one out.


It is hard to get a dish these days with less than two LNB outputs. Mine
has four of which only one is actually used. Splitters do exist. No idea
if they are any good since I only have one satellite tuner.



Splitters don't work as such Martin as unlike TV reception you have to
direct the LNB to one of two combinations of frequency band and either
plane of polarisation. So a sat receiver sends a request as it were to
the LNB to tell it to pass a certain frequency band and polarised
signal..

Hence the Multiswitch alluded to earlier..
--
Tony Sayer