LNBs with input for Terrestrial and Satellite. how is it split when it enters house?

guv69

My new setup has a quad LNB that has an input for a terrestrial aerial. Decided to make use of it and save on cables, length of runs etc. However, I'm unsure of the wall socket I'd need to split the signals once the single cable is inside the house.



My local QVS store, sells the above - however at the back, it has connections for 2 cables, so not what's needed. I'm sure I've seen the correct ones posted somewhere, but unable to locate.

To further complicate things, I also want to add a second dish into the setup, so need a little advice on the best way to go about this and be sure I'm not going to loses masses of signal by going for an all in one solution!

OK.... I have a 1m Orbit motorised dish which has a quad LNB and input for terrestrial. I also have a fixed sky dish. As it stands, I understand I would be able to use the single feed from the dish to carry the signal for Satellite and Terrestrial carried down one cable. Am I correct in saying, to use the sky dish as well, I would need to have a diseqc switch for each and every feed from the 1m dish? Or is the a better muli-switch solution, so I can have 4 inputs from each dish and terrestrial, fed from the switch as a single cable at points of entry into the house where its all required? (ie I wish to feed the living room and 3 bedrooms with satellite from 2 dishes and terrestrial.)

To be honest, I would have been happy enough just to feed the sky dish to the bedrooms - however there is a problem with this idea in the fact it would lose the Terrestial feed from the 1m dishes LNB.

Hopefully that all makes sense!!!!!

Shout if it doesn't!:)

guv69

OK.... I've finally found the faceplate needed... a diplex.

But how much signal is actually lost? Would it make any real difference?

Sam Radford

A good quality diplex (decombiner) plate will lose about 2dB, which should not affect your viewing unless your dish is already too small and prone to "rain drop-out".
Is the terrestrial signal carried down all four cables? (I assume it is.)

guv69

Sam Radford wrote: »

A good quality diplex (decombiner) plate will lose about 2dB, which should not affect your viewing unless your dish is already too small and prone to "rain drop-out".

Its a 1m dish, so should be OK then.

Is the terrestrial signal carried down all four cables? (I assume it is.)

I hope so! It doesnt say only one carries the signal. Have bought a DiPlex today from Maplins.

So, going to run just two feeds from this dish carrying terrestrial into the living room and main bedroom. Will mean only the sat the dish is on can be received in the bedroom. The other 2 bedrooms, will be fed from the small sky dish for the kids. Probably the best way to go - and to be honest, with that, they wont need a terrestrial aerial anyway. Bedroom 1 and living room has freeview, so thinks its the best and easiest all round solution.

bonnell

Hi I'm just after buying a quad lnb with terrestrial input. Does the dish act as an Ariel or do I need an Ariel. Or do I plug the terrestrial input into one of the other lnb connections and then plug the satellite cable into the lnb and then split the signal inside the house to TV to satellite receiver.. thanks Sean

The Cush

https://www.boards.ie/discussion/comment/118061082#Comment_118061082

Separate aerial required. The LNB simply acts as a combiner to carry the terrestrial feed down each cable. Signal to be split again inside using a satellite/terrestrial splitter or diplexer wallplate.

Gerry Wicklow

https://www.boards.ie/discussion/comment/118061082#Comment_118061082

The quad LNB will have a separate connection for the terrestrial aerial. Check the Saorview site for info on which mast to point your aerial at. At the TV end of the coax you will need a diplexer/ splitter unit or wall plate to extract the terrestrial signal out again. See here for details of these https://www.freetv.ie/quad-lnb-with-terrestrial-input/