Splitter question

Tea 1000

Hi guys, two questions. My first one is regarding the two way splitters that you can apparently put at either end of a single cable so that you can send a satellite signal plus a terrestrial analogue signal down the same cable and seperate them again with the second splitter. Do these work with Terrestrial digital signal?

Peter Rhea

Digital or analogue makes no difference to splitters, diplexers, amplifiers etc.

Only trouble that may arise with these sat./terr. diplexers is if you have a remotely powered masthead amplifier on your aerial.

excollier

Insert the power supply for the mast head amp before the diplexer, simple!

Peter Rhea

Not so simple if you don't have a convenient powerpoint, maybe the mast amp could be powered by the sat. receiver (I know some Televes mastheads have an integrated sat./terr. diplexer).

Liameter

Explained here: http://www.satcure.co.uk/tech/combiners.htm

Tea 1000

Thanks for the replies folks. Just to be clear, this is what I'm talking about:
http://www.satellite.ie/acatalog/Satellite_UHF_combiner.html
Is that the same as a diplexer?

Also, I realised I forgot to ask my second question... I'm kind of restricted in my rented house regarding cables at the moment, which is why I'm looking at these kind of alternatives. So I'm wondering that if I want to tune in RTL, which I believe is on Astra 1, I know that a motorised dish is the normal solution. However I don't want to go this route, as while I'll be watching RTL, the dish will be pointing the wrong direction for my wife or son to watch anything else on another TV. So is it possible to put up a second dish, and combine the signal from both dishes to the same cable running to my HTPC? My thinking is that the tuner card in the PC should have both signals available to it, and when I select a channel, it will set the LNB on both to Horizontal (for example) and listen for the frequency it needs for that channel, ignoring whatever signal is coming from the other LNB. (chances of the same frequency and polarisation from both dishes actually being a different channel on each LNB should be very small I would have thought). Is my thinking way off on this, or is it crazy enough to work?

Liameter

Yes, the stacker/destacker will do that but you MUST ensure that the cable is the correct stuff and in top condition.
http://www.satellitetv.ie/shop/index.php?controller=product&path=21_25&product_id=282

tryfix

Tea 1000 wrote: »

Thanks for the replies folks. Just to be clear, this is what I'm talking about:
http://www.satellite.ie/acatalog/Satellite_UHF_combiner.html
Is that the same as a diplexer?

Also, I realised I forgot to ask my second question... I'm kind of restricted in my rented house regarding cables at the moment, which is why I'm looking at these kind of alternatives. So I'm wondering that if I want to tune in RTL, which I believe is on Astra 1, I know that a motorised dish is the normal solution. However I don't want to go this route, as while I'll be watching RTL, the dish will be pointing the wrong direction for my wife or son to watch anything else on another TV. So is it possible to put up a second dish, and combine the signal from both dishes to the same cable running to my HTPC? My thinking is that the tuner card in the PC should have both signals available to it, and when I select a channel, it will set the LNB on both to Horizontal (for example) and listen for the frequency it needs for that channel, ignoring whatever signal is coming from the other LNB. (chances of the same frequency and polarisation from both dishes actually being a different channel on each LNB should be very small I would have thought). Is my thinking way off on this, or is it crazy enough to work?

You should be able to fit a second LNB to the one dish at an offset and pick up both satellites on the one dish . You can use an LNB switch to get your receiver to recognize both signals as seperate LNBs . If you install the LNB switch near the dish there will only be one cable coming out of the LNB switch and i assume a PC satellite receiver can allocate a different LNB to each satellite signal, the same as a normal satellite receiver would. I picked up Astra 1 @19 east and Hotbird @13 east on a dish that was tuned into Astra 2 @28.2.east , by making a homemade LNB holder and moving the LNB around on the right hand side of the fixed LNB until i got the signal .

Peter Rhea

Same here, just a (zone 2) Sky dish on 28E with a 2nd lnb on a homemade bracket for 19E.

Picture (also shows DiSeqC switch) & some explanation here.

tryfix

Cheap as chips , but i would go for a good brand of LNB switch . Pity i didn't listen in French and German classes at school .:)