TV distribution on camp site

Discussion in 'TV & Satellite' started by keith, Aug 7, 2009.

  1. keith

    keith Funster

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    As some of you will know we live on a camp site & the owner is trying to set up TV points on each EHU bollard as you get on CC sites in poor reception areas.

    Anyone know where we can get information on what is needed, & how it's done?
     
  2. Satandpcguy

    Satandpcguy Funster

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    if i were applying this to a houseing community here in Espana...

    you will need a dish,
    a quatro LNB (HH, HV, LH, LV) - so all frequencies are available
    multiswicthes and or launchers and cascading multitaps for distributing the signals around the site
    a lot of cables
     
  3. Geo

    Geo Trader - Funster

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    Also available in English:Doh:
     
  4. Satandpcguy

    Satandpcguy Funster

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    ok,
    satellite signals are availble on four "polarisations" - horizontal high, horizontal low, vertical high and vertical low,

    to allow many people to connect to a dish you need a system to allow them to have access to all frequencies.

    by having an qautro LNB this allows the four polarisations to be input into a multiswitch unit

    the multiswicth unit thens distributes each polarisation to any of its 8, 12, 17 or more outputs.

    these outputs can be connected to a satellite receiver, allowing for many satellite receivers to be connected to just one dish.

    this is the same that happens in appartment blocks, where one dish feeds may recievers.
     
  5. johng

    johng Read Only Funster

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    so a double or quad LNB is more than just 2/4 blockers seeing the same signal?

    i.e. I have a double here, am i receiving two different polarisations? or am i a bit confused :RollEyes:
     
  6. Satandpcguy

    Satandpcguy Funster

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    a twin output LNB allows the full frequency range to go directly to two seperate receivers

    a quad output LNB allows the full frequency range to go directly to four seperate receivers.

    a octo output LNB allows the full frequency range to go directly to eight seperate receivers.

    but if you wnt to connect more receivers to the system then you will need the quatro LNB, that seperates HH, HL, VH and VL signals, and a multiswitch / distributor.
    the multiswicth then distributes whichever frequencies to the receivers connected to the output of the multiswitch.
    this method allows you to connect 1,2, or more different receivers to one LNB, as multiswicthes can be casecaded / daisy chained together for many more connections.
    so by connecting two 12 output multiswicthes you can use 24 receivers all watching different channels!

    you cannot, obviously connect 8 receivers to just 1 lnb output. as you will damange yourlnb and receivers, and you will only be able to watch channels on the same polarisation on all receivers!
     
  7. hilldweller

    hilldweller Funster Life Member

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    So the multiswitch appears to the receiver as a normal LNB complete with polarisation switching ??? Clever. Internally it must shift 3 of the polarisations to different frequencies to feed down the distribution cable.
     
  8. Satandpcguy

    Satandpcguy Funster

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    this should explain it a bit better
    [​IMG]

    this diagram only shows 8 outputs but you can connect more multiswicthes together as a cascade.
    this unit is also distributing terrestrial signals also.
    at each "camping pitch" you will need some for of pilexer to "unmix" the satellite and terrestrial signals.

    for each of the receiver outputs, the multiswitch just switches between inputs as commanded by the receiver.
     
    Last edited: Aug 9, 2009
  9. bashers

    bashers Read Only Funster

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    have we missed the point here?
    I'm assuming the original poster referred to terrestrial distribution didn't they?
    We have just described satellite distribution which would require each camper to bring their sky box with them.

    Not necessarily a bad thing though if you informed people on booking
    Possibly another revenue stream too as you could buy old sky boxes from eBay for £20 and rent them out at a few quid a night with a freeview card.

    Back to the point though, a terrestrial system just requires a decent aerial, distribution amps and plenty of cable
     
  10. Satandpcguy

    Satandpcguy Funster

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    apols, if the OP was refering to terrestrial services, and I have got the wrong idea.
    but id the terrestrial services )Freeview) are poor in the area, then the main UK channels are also available on satellite, so I was assuming that that is where they would get a signals from.
    if you want signals from a terrestrial source than yes you will need an aerial with good recexption, a load of amplifiers and lots of cable.
     
    Last edited: Aug 12, 2009
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