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Wireless extention from terrestrial aerial?

  • 03-01-2010 3:23pm
    #1
    Registered Users, Registered Users 2 Posts: 2,934 ✭✭✭


    Hi

    I have an Aerial on the roof into a spliter/booster and into 2 tvs - typical bog standard setup with the 8 channels.

    Is there a device i can use to send the signal to another tv without laying another cable (wirelessly) I've shown a diagram to show the setup and where I need the device and extra tv.
    The green device is how i see it working.
    I've seen video senders in Argos - are these what i need? I need both the tv's to work independently - so can it take a direct feed?

    Can you recommend a decent one.

    Thanks
    diagram.jpg


Comments

  • Registered Users, Registered Users 2 Posts: 71,184 ✭✭✭✭L1011


    Videosenders send a single channel signal, off a SCART input generally. They're not suited for what you want here - unless you do as I've done before and used an obsolete VCR on the other end as a tuner...


  • Registered Users, Registered Users 2 Posts: 2,934 ✭✭✭egan007


    Thanks for that - do you know if there is some devide other than a video sender?


  • Closed Accounts Posts: 578 ✭✭✭Owenw


    Don't think there's such a product on the market.

    Any reason not to use a simple internal aerial (cats ears) ?


  • Registered Users, Registered Users 2 Posts: 2,934 ✭✭✭egan007


    I can't get the uk channels on cats ears.


  • Registered Users, Registered Users 2 Posts: 1,773 ✭✭✭poker--addict


    did you find a solution. I also now have a tv in a room without any aerial wire nearby and dont want to wreck the house wiring it!

    😎



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  • Registered Users, Registered Users 2 Posts: 32,417 ✭✭✭✭watty


    Get an expert to install a cable. There is always a way.


  • Registered Users, Registered Users 2 Posts: 1,773 ✭✭✭poker--addict


    watty wrote: »
    Get an expert to install a cable. There is always a way.

    spent all my beans on the new tv :D

    😎



  • Registered Users, Registered Users 2 Posts: 1,688 ✭✭✭winston_1


    What you want is called a TV relay transmitter. You would not get a licence for such a device as it would cause interference to your neighbours. Anyway if you can't afford to get a cable installed you could certainly not afford a transmitter.

    Suggest you box up your new TV until you've saved a bit more to have a cable installed.


  • Registered Users, Registered Users 2 Posts: 326 ✭✭marathont


    spent all my beans on the new tv :D

    I think youll be better off with a cable. It doesnt have to be expensive. I recently ran a cable to a tv in a bedroom, but I ran the cable on the outside of the house and in through the wall at the back of the tv.

    That way I did not need to chase walls/ have an ugly cable running down my wall. (allthough you will have a cable on the outside of your house if that bothers you).

    No need for a professional, all you need is a drill.

    Obviously depends on your layout though.


  • Registered Users, Registered Users 2 Posts: 1,773 ✭✭✭poker--addict


    winston suggest you lighten up:D Even if i was broke there is probably some tv cable out in shed!! Cable is unsightly and is generally fixed in place.

    Homes have wifi, remote controls, cordless phones, wireless keyboards/mice, bluetooth applicanes. We have modern 40-50 inch plasma tv with HD sky and yet we are still drilling holes and pulling stoneage cables around houses!

    😎



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  • Registered Users, Registered Users 2 Posts: 32,417 ✭✭✭✭watty


    Cables work well and easily carry 1000MHz to 2000MHz worth of RF or 10Gbps of data.

    Any domestic Radio Transmitter Set can only be low powered, have about 25MHz of band, only work a few metres at 300Mbps, and quickly drop to 20Mbps between rooms.

    Cables are great. ;)http://www.techtir.ie/howto/hdmi-via-cat5-cable

    I'm fittiing a hollow door saddle at kitchen /Hall door where 4 cables run across hall, instead of regular one. Elsewhere you can't see the 8m of wiring.


  • Closed Accounts Posts: 5 memoli


    watty wrote: »
    Cables work well and easily carry 1000MHz to 2000MHz worth of RF or 10Gbps of data.

    Any domestic Radio Transmitter Set can only be low powered, have about 25MHz of band, only work a few metres at 300Mbps, and quickly drop to 20Mbps between rooms.

    Cables are great. ;)http://www.techtir.ie/howto/hdmi-via-cat5-cable

    I'm fittiing a hollow door saddle at kitchen /Hall door where 4 cables run across hall, instead of regular one. Elsewhere you can't see the 8m of wiring.

    I was researched about this subject for my home requirement, as I remember basic cat5 cables are not suitable for hdmi 1.3 and above ones. because especially 3d and 1080p are high bandwith signals. So it is not possible to carry this type data with cat5. Instead cat6 recommended .

    As I remember there is a blog related to this technology, and important details mentioned , check it : http://www.hdmicat5.net


  • Registered Users, Registered Users 2 Posts: 32,417 ✭✭✭✭watty


    the official HDMI cable spec is EXACTLY the wire in Cat5e No-one uses Cat5, it's all Cat5e. It needs to be the Shielded version of Cat5e.

    There is no harm in using Cat6. But it won't go further or work better. The Shielded Cat5e is fine for 1920x1080p50

    Only the URL leaves out the "e"
    HDMI on Screened Cat5e
    Cat 5e cable has four twisted pairs. The important high speed data and clock for HDMI uses four twisted pairs of similar spec. You do need to use the Screened version of Cat5e (STP), not the more common UTP. Two Cat5e cables are needed.

    Thanks for link, I had seen HDMI -RJ45 faceplate but forgot to bookmark.
    http://www.amazon.com/Steren-526-119WH-Cat5e-Extender-Plates/dp/B004LYU8IU/ref=sr_1_10?s=electronics&ie=UTF8&qid=1299271891&sr=1-10

    $25 is madly overpriced though.

    What they say about 3D doesn't apply to Sky box. Only to full frame/full resolution Bluray or Playstation HDMI


  • Registered Users, Registered Users 2 Posts: 417 ✭✭ULMarc


    i think you should get a cable chased. it'll make everything easier. Chase a pair of 2 cables to each location if you want a slick, non-complex aerial and satellite combo


  • Registered Users, Registered Users 2 Posts: 129 ✭✭TAPlank


    Can't see why the house electrical wiring cannot be used to transmit TV signals. There used to be a gizmo that allowed a single printer to be networked with several computers through the house wiring system. The only stipulation was that the same phase had to be used, which could have been a problem in an office block. A development of this idea should do the trick and would be very useful to a great number of people. Is there such a gizmo? if not than get cracking all you egg heads and boffins and make your first million. That is unless there is a legal impediment in doing it this way.

    N. B. I want 10% of the nett profits.!!!


  • Moderators, Science, Health & Environment Moderators Posts: 20,151 Mod ✭✭✭✭Sam Russell


    It would be against the law - the laws of physics. You would be transmitting to the nation.


  • Registered Users, Registered Users 2 Posts: 32,417 ✭✭✭✭watty


    Those power line Ethernet power/networking are only sold via regulation loop hole. They generate a huge amount of interference.

    If you have PC with DTT tuner or suitable DTT receiver you can use media server and client and use networking you can use Cat5e cable.

    Mains wiring for Networking is a disaster to Radio Spectrum. TV signals over it would be an unmitigated disaster, though technically possible.

    People need to run cables. It's easier than you think to hide them.


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