On 17/02/2020 00:24, Commander Kinsey wrote:
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?* I have an aerial and a Sky
dish, I have a cable from each.* 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.

We have four cables from the LNB and one (combined) from the terrestrial
aerial and FM aerial (on the same pole). The signals are fed into a
multiswitch under the floor and two cables feed to each room in the
house. One cable caries satellite only, the other carries satellite,
terrestrial TV and FM radio - the standard (quadplex) faceplate splits
the signals to separate connectors. A simple and effective way to
distribute various signals around the house, without too many cables.

SteveW