How do I receive Canal + Yellow

[M. I. Stollov]

On Fri, 14 Nov 97 23:52:23 GMT, b...@dsl.co.uk (Brian {Hamilton Kelly})
wrote:

>> I understand vertical and horizontal polariity but what is R ??
>
>Right-hand Circular Polarization; the beam, instead of being planar
>polarized, is like a corkscrew. To squeeze an extra 3dB performance
>(perhaps; there are certain caveats) out of your system, you might need
>to fit a depolarizer to convert this circular polarization to linear.
>There's a good explanation of what happens, and why, on Swedish
>Microwaves' web pages at (IIRC) <URL:http://www.smw.se/>

Nope, won't work. While fine in theory you;d find that, in practice,
it won't make a bit of difference. The beam is only circularly
polarised in the main service area, who knows what it is over us. We
are way off the main lobe & could get anything.

Anyone who points their linear LNB at Thor ! will see that switching
between V & H will make a difference tot he received signal strength,
something that shouldn't happen with true circular polarity.

Sadly there's no substitute for a BIG dish for this bird, unless you
hold your breath & wait for Thor 1 to expire, which it's been
threatening to do for a while now.

Regards,

MaD, bAd MotRiseD Mike.

[Brian {Hamilton Kelly}]

In article <3471bf2f...@news.u-net.com>

mi...@knoydart.u-net.com "M. I. Stollov" writes:

> On Fri, 14 Nov 97 23:52:23 GMT, b...@dsl.co.uk (Brian {Hamilton Kelly})
> wrote:
>
> >> I understand vertical and horizontal polariity but what is R ??
> >
> >Right-hand Circular Polarization; the beam, instead of being planar
> >polarized, is like a corkscrew. To squeeze an extra 3dB performance
> >(perhaps; there are certain caveats) out of your system, you might need

^^^^^^^^^^^^^^^^^^^^^^^^^

> >to fit a depolarizer to convert this circular polarization to linear.
> >There's a good explanation of what happens, and why, on Swedish
> >Microwaves' web pages at (IIRC) <URL:http://www.smw.se/>
>
>
> Nope, won't work. While fine in theory you;d find that, in practice,
> it won't make a bit of difference. The beam is only circularly
> polarised in the main service area, who knows what it is over us. We
> are way off the main lobe & could get anything.

Which is precisely what I meant about there being certain caveats;
remember that Thor I is not the only satellite transmitting with circular
polarization.

> Sadly there's no substitute for a BIG dish for this bird, unless you
> hold your breath & wait for Thor 1 to expire, which it's been
> threatening to do for a while now.

Correct.

--
Brian {Hamilton Kelly} b...@dsl.co.uk
"The fundamental design flaws [of the products of the Micros^WSirius
Cybernetics Corporation] are completely hidden by their superficial
design flaws." GBATFATF 1983 --- wasn't Douglas Adams prescient?:-)