Dividing cable from satellite dish

tag1

I have a spare sky digi box. Could I use a combiner to divide the signal/cable coming from the satellite dish and have a cable going to both a freesat box and my sky subscription box

John mac

No

You can run a second cable from your dish (if you have a quad lnb)

dathai60

if your dish is fixed you can do, using a splitter one cable in you can run as many as four boxes out of it if you wish.

St Senan

dathai60 wrote: »

if your dish is fixed you can do, using a splitter one cable in you can run as many as four boxes out of it if you wish.

He needs a quad Lnb, could you explain more about this splitter

tag1

thanks for your help.

This is the combiner that I was thinking of using it is a Satellite VHF/UHF combiner indoor unit

http://satellite.ie/acatalog/Satellite_UHF_VHF_Cable_Combiner.html

St Senan

tag1 wrote: »

thanks for your help.

This is the combiner that I was thinking of using it is a Satellite VHF/UHF combiner indoor unit

http://satellite.ie/acatalog/Satellite_UHF_VHF_Cable_Combiner.html

that combiner is used for combining satellite and aerial signals on one cable
what you need to run two receivers/boxes from one dish is a quad lnb.
http://www.adverts.ie/showproduct.php?product=157335&cat=all

dathai60

http://cgi.ebay.ie/PROFESSIONAL-6-WAY-TV-SPLITTER_W0QQitemZ330104258826QQcmdZViewItemQQptZUK_ConEle_SatCableFreeview_RL?hash=item4cdbbf410a
hope this link works one of these are cheaper and less hassle then putting up another lnb and running more cables into the house

St Senan

dathai60 wrote: »

http://cgi.ebay.ie/PROFESSIONAL-6-WAY-TV-SPLITTER_W0QQitemZ330104258826QQcmdZViewItemQQptZUK_ConEle_SatCableFreeview_RL?hash=item4cdbbf410a
hope this link works one of these are cheaper and less hassle then putting up another lnb and running more cables into the house

That splitter is no good for having seperate boxes feeding from one dish he needs a Quad lnb or a Octo lnb. using one of these splitters he wont be able to have the same frequencies/Channels on the two receivers at the same time.

dathai60

i have one running a sky box and two freesat recievers and can watch what you like on any of them (last reply this is getting a bit tiresome)

Wizard007

Do you have aerial feeds comming into the two tvs with freesat dathai60?

St Senan

dathai60 wrote: »

i have one running a sky box and two freesat recievers and can watch what you like on any of them (last reply this is getting a bit tiresome)

dathai60 why did you recommend a quad lnb to someone else on a previous thread instead of a splitter
http://www.boards.ie/vbulletin/showthread.php?t=2055738291
i am sure other installers here will say the same as i have said about splitting a single satellite feed coming from a dish

montgolfiere

scaller wrote: »

dathai60 why did you recommend a quad lnb to someone else on a previous thread instead of a splitter
http://www.boards.ie/vbulletin/showthread.php?t=2055738291
i am sure other installers here will say the same as i have said about splitting a single satellite feed coming from a dish

Not me
the Skyman

St Senan

montgolfiere wrote: »

Not me
the Skyman

Could you please explain.

Also this subject has been discussed before http://www.boards.ie/vbulletin/showthread.php?t=2055466755 and a lot of other installers say the same

Darth Maul

Some of the previous answers provided on this post are madness an highly misinformed.

look you cannot split a single satellite cable to feed multiple boxes, without huge limitations,
the are 4 different combinations of frequencies
Channels with vertical polarisation and low band
Channels with vertical polarisation and high band
Channels with horizontal polarisation and low band
Channels with horizontal polarisation and high band

The LNB selects horizontal polarisation when fed with 17 volts and vertical polarisation when fed with 13 volts.
The LNB selects high band when fed with 22kHz tone and low band otherwise.
If you connect two tuners to it, they will be fighting for control. Normally "high band" and "horizontal" will win.

therfore if one tv is watching a tv with a Channel with horizontal polarisation and high band, then the other tvs all have to watch a TV Channels with horizontal polarisation and high band etc etc.

also Splitting the LNB feed is not a good idea because it will reduce the signal by more than 50%

The preferred solution is to replace your LNB on the dish with one that has additional outputs.

That is the proper answer to the original question and if "dathai60" is a satellite installer I would be very very worried for the poor people who had the misfortune to have him in their house going by the information he is giving out here. Maybe he could post back and explain how he gets over the limitations of polaristaion and band conflicts and the huge quality loss. Actually just see in his profile that he is a painter/decorator, stick to that mate,

Sorry for the rant but there is just too much misinformation on these forums lately, people are coming here looking for advice so if you don't know the correct answer to their query its better not posting.

Rippy

Darth Maul wrote: »

That is the proper answer to the original question and if "dathai60" is a satellite installer I would be very very worried for the poor people who had the misfortune to have him in their house going by the information he is giving out here. Maybe he could post back and explain how he gets over the limitations of polaristaion and band conflicts and the huge quality loss.

Could not have put it better myself.

Wizard007

I think that maybe, just maybe, he is a consumer and not an installer and has the combiners in his attic and not actually aware of what's going to his dish? Possible yeah?

Darth Maul

Wizard007 wrote: »

I think that maybe, just maybe, he is a consumer and not an installer and has the combiners in his attic and not actually aware of what's going to his dish? Possible yeah?

Possible but why post it as fact, and argue with an obviously knowledgable poster. As I said if you are unsure of the answer don't post, there is plenty of pros here to provide an informed answer. Would love to hear back from "dathai60" might PM him

Wizard007

Yeah I know and understand where you're comming from.

"As I said if you are unsure of the answer don't post" - I'm not - I'm just offering an idea of how he is getting confused.

Liam Byrne

Darth Maul wrote: »

look you cannot split a single satellite cable to feed multiple boxes, without huge limitations,
the are 4 different combinations of frequencies
Channels with vertical polarisation and low band
Channels with vertical polarisation and high band
Channels with horizontal polarisation and low band
Channels with horizontal polarisation and high band

The LNB selects horizontal polarisation when fed with 17 volts and vertical polarisation when fed with 13 volts.
The LNB selects high band when fed with 22kHz tone and low band otherwise.
If you connect two tuners to it, they will be fighting for control. Normally "high band" and "horizontal" will win.

therfore if one tv is watching a tv with a Channel with horizontal polarisation and high band, then the other tvs all have to watch a TV Channels with horizontal polarisation and high band etc etc.

I'd second all the above 100%, but I've one "curiosity" question that popped into my mind from another thread here.

For apartment-type setups, what way is this handled ?

My gut feeling from relating the above is that there would be a dish with a quad LNB and that a controller box in-between would route the request to the appropriate one, as well as ensuring that the signal quality wasn't affected ? Is this roughly correct, or am I way off ?

fat-tony

Liam Byrne wrote: »

I'd second all the above 100%, but I've one "curiosity" question that popped into my mind from another thread here.

For apartment-type setups, what way is this handled ?

My gut feeling from relating the above is that there would be a dish with a quad LNB and that a controller box in-between would route the request to the appropriate one, as well as ensuring that the signal quality wasn't affected ? Is this roughly correct, or am I way off ?

What happens in this case - say a block of apartments is that you use a "quattro" (not quad) LNB, which basically has four LNBs, one horizontal low, one horizontal high, one vertical low and one vertical high. The four cables are fed to a multiswitch. Each apartment has a sat receiver and a cable leading back to the multiswitch. The multiswitch detects the voltage and the 22KHz signal tone from the sat receiver and connects it to the appropriate LNB.

montgolfiere

Quattro LNB + Multi Switch to feed multiple appartments etc.
the Skyman

beaten again!!!

Liam Byrne

fat-tony wrote: »

What happens in this case - say a block of apartments is that you use a "quattro" (not quad) LNB, which basically has four LNBs, one horizontal low, one horizontal high, one vertical low and one vertical high. The four cables are fed to a multiswitch. Each apartment has a sat receiver and a cable leading back to the multiswitch. The multiswitch detects the voltage and the 22KHz signal tone from the sat receiver and connects it to the appropriate LNB.

So apart from a few details (quad vs quattro and my "controller box" being called a "multiswitch") I guessed the methodology right! Cheers!

I'd also presume the 4 "dedicated" LNBs would give a better signal quality than a switchable one ?

St Senan

Darth Maul wrote: »

Some of the previous answers provided on this post are madness an highly misinformed.

look you cannot split a single satellite cable to feed multiple boxes, without huge limitations,

That is the proper answer to the original question and if "dathai60" is a satellite installer I would be very very worried for the poor people who had the misfortune to have him in their house going by the information he is giving out here. Maybe he could post back and explain how he gets over the limitations of polaristaion and band conflicts and the huge quality loss. Actually just see in his profile that he is a painter/decorator, stick to that mate,

Sorry for the rant but there is just too much misinformation on these forums lately, people are coming here looking for advice so if you don't know the correct answer to their query its better not posting.

That explains it all, I would also love for Daithi60 to explain his setup and how it works without problems. Also if montgolfierecould give a proper reply instead of short answers and explain what he means about been beaten again. At the end of the day people come here looking for advice and would like proper answers.Thanks to all the Guys who give proper advice i was beginning to think all the rest of the installers here were on holidays

Liam Byrne

scaller wrote: »

Also if montgolfierecould give a proper reply instead of short answers and explain what he means about been beaten again.

I'd say that's related to the fact that fat-tony replied to me before he [montgolfiere] did.....

St Senan

Liam Byrne wrote: »

I'd say that's related to the fact that fat-tony replied to me before he [montgolfiere] did.....

No bother but he gave a short answer earlier and never explained anything

montgolfiere

Liam Byrne wrote: »

I'd say that's related to the fact that fat-tony replied to me before he [montgolfiere] did.....

correct.

sorry for the 'short answer' but i thought it answered the question which was a bit of an ' aside question' to the actual post..

and the 'short answer' i gave before definitely answered the question. .....I am always happy to give a detailed answer when i feel it is required. see all my other posts!!!
The Skyman.

Tony

dathai60 wrote: »

(last reply this is getting a bit tiresome)

Your misinformation is definitely tiresome

Liam Byrne

montgolfiere wrote: »

and the 'short answer' i gave before definitely answered the question. .....I am always happy to give a detailed answer when i feel it is required. see all my other posts!!!
The Skyman.

To be fair to scaller, I'm not so sure that it did.....

What was posted was:

i am sure other installers here will say the same as i have said about splitting a single satellite feed coming from a dish

Your reply - "not me" - would seem to imply that you wouldn't say the same, i.e. that you disagree ?

fat-tony

Liam Byrne wrote: »

I'd also presume the 4 "dedicated" LNBs would give a better signal quality than a switchable one ?

I've no direct experience of quattro LNBs as I don't install dishes for a living, so scaller or one of the other installers could answer your question.
That said - a quattro is used in conjunction with a multiswitch to feed many outputs which would probably contribute to signal loss, so I'd imagine you would probably need a bigger dish. I wouldn't imagine you would/could use a quattro with a SKY dish and get decent results. I'm sure someone with practical experience of these devices will come along soon and contribute:)

montgolfiere

Liam Byrne wrote: »

To be fair to scaller, I'm not so sure that it did.....

What was posted was:



Your reply - "not me" - would seem to imply that you wouldn't say the same, i.e. that you disagree ?

exactly. I disagreed with the expectation that other installers would agree with what was posted.

it looks like i will have to up my word count in future posts!!!!

sorry again for any confusion.
The Skyman

Apogee

montgolfiere wrote: »

I disagreed with the expectation that other installers would agree with what was posted.

Why would they disagree?

GoGoBoss

To add what others have said it is not possible to have more than one receiver working from a single universal lnb similtaneously recieving different bands using a splitter. The receiver sending the higher voltage and tone takes control of the LNB and the other receiver wont be able to select a different band. However there is a one liner technology available that can supply several recievers any multiplex similtaneously using one cable and splitters, but these receivers are generally more expensive and unless there has been any recent changes a sky box is not capable of one liner technology.
As for using a bigger dish with quattro lnbs, that is true. But the reason for this is generally with this system there can be alot of subscribers using the same dish and it is considered good practice to use a dish with 30% more diameter than would be required on a direct to home system to give better margin and increase the reliability of the system

dathai60

SORRY tag1 looks like my advice was wrong.from now on will stick to what i know,but if you ever want advice on painting or decorating will gladly help out,will leave the sat stuff to the experts. and bye the way did not disagree with anything anyone else said,just said what worked for me.