2 Sats are for the two cables that come with Sky Plus and Sky HD, TV for normal reception of analogue or digital and fm for fm aerial if customer want strong signal on radio all outside cabling goes into the back of quad and then connectors from wall socket to each item
1 of the connections takes both lines from the sat (assuming twinned cables)
The normal tv coax goes in the other single terminal.
If it's the labgear one (fitted one recently ) you will find that the normal tv coax then plugs into the one marked "return".
You may also have to change the original tv coax from tv to the plate for a different fitting.
If you only have the one sky coax then same as above but obviously just the single cable to terminate.
OK first of all
1. a sky box takes one input so that would be a single LNB
2. sky+ is a 2 channel box ie watch one record the other and sky used to use a twin LNB but as customers wanted 1 sky+ and 1 multiroom tha meant you needed 3 inputs so sky only used either a single or quad LNB and manufacturers stopped making the twin LNB
I conerted my sky dish from a single to a quad years ago as I used sky and a Free To Air sat receiver
but the last 2 years I have sky+ and multiroom (1-off) then I bought an Panisonice built in Freesat HD using up all 4 inputs.
LNB= Line Noise B(*&^ in other words the small cone fitted on to the dish.
Free To Air sat receiver plugs into a sky dish has 300 channels but you pay no subscription
Freesat is a sat reciever that gives you FTA plus the encrypted channels ie C4,E4,M4 5US,5iver that still have an agreement with sky.
As for me I have got BBC.ITV HD but no C4 for free on my Panisonice as I refuse to pay sky for this service
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