"Commander Kinsey" wrote in message
newsp.0f3vewswwdg98l@glass...
On Sun, 16 Feb 2020 22:39:18 -0000, alan_m wrote:

On 16/02/2020 19:37, Brian Gaff (Sofa 2) wrote:
You should only need two for all channels since there are only two
possible
polarisations surely?

It's only sky that needs two cables. Other wideband (unicable) LNBs
connected to the appropriate tuners only require a single cable, and the
signal can be split.

How do they put H and V polarized channels onto the same cable?

https://www.inverto.tv/lnb/186/progr...lnb-with-24-ub

Because these unicable LNBs don't steal the DAB/UHF frequencies it's

It's not stealing, it's making use of them.

possible to combine the signals from terrestrial and satellite in the
same cable.

Why on earth would you want to do that?

Makes it a lot easier to distribute around the house
to the various places you watch TV like the main rooms
and the kids bedrooms and the main bedroom etc.

I have an aerial and a Sky dish, I have a cable from each.

But don't have kids with their own bedrooms.

I'd never have thought of trying to cram both signals onto one, then
trying to split them at the other end. Sounds like a lot of hassle to me.

Not when you want what arrives at
the house available thruout the house.

Lot less hassle than multiple cables
to all the places you have a TV etc.

The cynic in me says Sky have adopted a bespoke system to tie people
into their Q service. Its no longer just a matter of swapping out a box
at the end of the cable as can be done with a "traditional" LNB.

If I wanted to stop Sky, I'd just change the LNB back to whatever was
needed by the new service.