multi room sattelite

Joined
15 Apr 2008
Messages
6
Reaction score
0
Location
Cardiff
Country
United Kingdom
anyone have any idea how i wire my house so that i nac get sky in every room off the one dish? i know its gonna need a booster in the attic but any wiring diagrams would go down a treat. cheers
 
Sponsored Links
Dont know about sky plus but with the old normal sky.
I used the second rf output on the sky box, turned on via the sky menu,
wired to a splitter amp unit ,then one co ax off to each room.
But not the one where the receiver is.
Fit a global eye in each room on the end of the coax and you can turn over with a sky remote in each room
 
Same with sky plus, and sky HD, all have an RF2 output that works in the same way, just remember to run the return cable from the main room (you can bodge it afterwards, but not as good an idea) - loftboxes and tri/quadriplexers are useful things too.
 
Sponsored Links
If you use a booster amp in the loft to distribute the uplink from the Sky box. Make sure that it has a bypass facility or your magic eyes wont work.
 
The T140 distribution amplifier from Global allows connections to four TV's and is powered from RF2 so no need for a power supply.
They also do an 8 way (T180) but this requires an external power supply.

They also do the job perfectly.
 
Just get a Dual or Quad LNB and replace current one. U dont have to move the dish.

I had a normal sky box in 2 rooms and this worked fine.

I refused to pay SKy to upgrade to SKY plus so bought 2 SKY+ units of ebay ( £30 each ) and did all meself.. took 10 mins. and using a Quad LNB so i can record and watch 2 channels same time.
 
Just get a Dual or Quad LNB and replace current one. U dont have to move the dish.

I had a normal sky box in 2 rooms and this worked fine.

I refused to pay SKy to upgrade to SKY plus so bought 2 SKY+ units of ebay ( £30 each ) and did all meself.. took 10 mins. and using a Quad LNB so i can record and watch 2 channels same time.

Your solution is correct, infact you can run 4 standard boxed from one Sky+ LNB as they are quads, but how do you get two (or more) viewing cards without an extra subscription? (unless you are using the council package)
 
What you want to do is easy, and the device to do it is called a Satellite Multiswitch. Sort of like a distribution amplifier, but with a bit more going on inside.

You'd need to replace your existing LNB with a Quattro unit. The Quattro LNB downsamples the incoming satellite signal in the same way as a normal LNB, but rather than selecting a particular frequency block based on the requirements of the satellite receiver, it outputs all incoming signals simultaneously split across four individual coax cables. Said cables run back to four inputs on the multiswitch, which then has whatever number of outputs you require for your satellite receivers.

The reason for having this many cables between LNB and multiswitch is that the frequency of satellite TV signals is very high (usually in the order of tens of Ghz), i.e. there is a lot of bandwidth there, and even good quality low loss coax cable is simply going to be too lossy at these kinds of frequencies. Splitting the signal over four cables means that each one needs to handle less bandwidth, hence the signals don't need to be at such a high frequency.

The multiswitch is pretty much transparent to the receivers, it acts in the same way as a regular LNB by selecting and routing the correct frequency block to each output depending on the requirements of the receiver. Most also have an input for UHF/VHF signals, which means you can have satellite, FM and TV all from the same single outlet.

Of course, if you simply meant that you want to have one receiver and watch the single currently tuned channel on any set in the house then you need to do as the other guys have said and run a cable from the RF out to a distribution amp. A LoftBox will probably be the easiest way for you to do this.
 
The reason for having this many cables between LNB and multiswitch is that the frequency of satellite TV signals is very high (usually in the order of tens of Ghz), i.e. there is a lot of bandwidth there, and even good quality low loss coax cable is simply going to be too lossy at these kinds of frequencies. Splitting the signal over four cables means that each one needs to handle less bandwidth, hence the signals don't need to be at such a high frequency.

That's not true!

The LNB changes the frequency from about 11GHz to about 1GHz. That's why a normal coax cable can be used from the LNB to the receiver. A lot of satellite receive systems use just one cable. Sky+ uses two cables as it has two tuners.

In a Quattro LNB the 4 coaxs are used for the 4 ways the satellite signal is transmitted. (in two frequency bands and 2 polarities: Low/Horiz, Low/Vert, High/Horiz and High/Vert)) These are used by the satellite so more channels can use the same position in the sky.

I am a broadcast satellite uplinks engineer.
 
The LNB changes the frequency from about 11GHz to about 1GHz. That's why a normal coax cable can be used from the LNB to the receiver. A lot of satellite receive systems use just one cable. Sky+ uses two cables as it has two tuners.

In a Quattro LNB the 4 coaxs are used for the 4 ways the satellite signal is transmitted. (in two frequency bands and 2 polarities: Low/Horiz, Low/Vert, High/Horiz and High/Vert)) These are used by the satellite so more channels can use the same position in the sky.

I am a broadcast satellite uplinks engineer.

Fair play, I'm a mere electrical engineer and as such TV/satellite certainly isn't one of my specialist subjects, but I'm always happy to learn. Nontheless, the jist of the whole thing is the same - there surely just simply isn't enough bandwidth down a single cable for L/H, L/V, H/H and H/V.
 
In a normal single receiver set up the LNB sends down the coax cable one of the 4 bands (L/H, L/V, H/H and H/V). The receiver chooses the required band by a combination of tones and voltage levels back up the coax to the LNB.

In a multi receiver set up the 4 bands are sent to a switch box which then sends the required band to each receiver.
 
Just get a Dual or Quad LNB and replace current one. U dont have to move the dish.

I had a normal sky box in 2 rooms and this worked fine.

I refused to pay SKy to upgrade to SKY plus so bought 2 SKY+ units of ebay ( £30 each ) and did all meself.. took 10 mins. and using a Quad LNB so i can record and watch 2 channels same time.

Your solution is correct, infact you can run 4 standard boxed from one Sky+ LNB as they are quads, but how do you get two (or more) viewing cards without an extra subscription? (unless you are using the council package)

Tell em you have lost or dog eaten the orginal.. and have a new one sent.. thats 2.

Im actually trying to make another couple more using blank chip cards.
(This is something i do)
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Sponsored Links
Back
Top