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is it possible ??

  • 07-07-2011 4:17pm
    #1
    MrTrebus
    Registered Users, Registered Users 2 Posts: 948 ✭✭✭


    okay, not sure if ai am gonna be able to do this so I thought I'd ask here first BEFORE starting !!!!

    What I want to try to do is get the following sats from a 1meter fixed dish

    1. 0.8W
    2. 13E
    3. 15.8E
    4. 19E
    5. 23E

    I will also have 28e on its own (original sky) dish.

    All connected to a 8/1 Diseqc Switch and a DM500HD

    does anyone know if that is gonna be possible in Dublin and if so, what the dish focus should be ?
    I'm thinking it should be at 13e but thats really just a guess.
    i know I'll have to invest in the slimline LNBS for 13,16 and 19, but I'm wondering ifs gonna be possible


    Anyone help ?

    cheers

    MrTrebus


Comments

  • #2
    Newtown90
    Registered Users, Registered Users 2 Posts: 1,615 ✭✭✭Newtown90


    Anything is possible as you have seen! lol...

    Am you should focus it on approx 13 east i suppose... 11.5 would be the correct one i suppose..

    But you'd need good lnbs besides the slimline ones for the two outside lnbs..

    Some black inverto ultras..

    One mistake i made was going for a cheap switch, and it broke after a week..

    And make sure everything is connected up before you put on the power from the reciever!

    And remember each sat will be coming in at the opposite side of the dish than you think!


  • #3
    excollier
    Closed Accounts Posts: 1,576 ✭✭✭excollier


    The focus should be on 16e/15.8e as it is the weakest. 13,19.2 and 23.5 are all relatively strong and will stand the offset much more easily. Don't know how 0.8w will stand up to a 17 deg offset, mind you. Try it and see.


  • #4
    Zardoz
    Registered Users, Registered Users 2 Posts: 6,016 ✭✭✭Zardoz


    Even with slim lnbs ,13e,16e and 19e is going to be very difficult to accomodate.
    Almost all multifeed adapters are too wide to accomodate 3 degree spacing.
    There are a few available with 3 degree spacing ,so make sure you get them.

    1w will be the problematic position as Excollier has already stated,the others will be fine.

    I found an interesting graph comparing different dishes over different positions.
    Its very interesting ,it will give you an idea of what is possible.


  • #5
    banie01
    Registered Users, Registered Users 2 Posts: 17,294 ✭✭✭✭banie01


    Its doable on a 1mtr dish alright,A neighbour has that exact same setup now on TD110(After deciding to outdo mine..LOL) in fact he has get 28.2 on the same dish aswell.
    But in your case I'd leave sky on its own dish and align on 16'e and you will need to modify whatever rail you decide to use to allow the 17'' offset to get 1w as most rails only allow @10'deg offset without modding ;)
    But like others have already pointed out getting the spacing correct for 13' 16' and 19'2 will require either slimline LNBs such as ALPS or Inverto Multiconnect as well as some modifications to the LNB rail and holders.

    It can be done with Standard LNBS at 13' and 19.2 and an inverto multi connect at 16 ;) But for easiest set up at least 2 slimlines are needed, I use an Multiconnect at 16' and an ALPS at 19.2 to get the spacing correct.
    Take a look at your old thread here http://www.boards.ie/vbulletin/showthread.php?t=2056283230 to see the pics I posted of my own rail mods and LNB setup to get 13' 16; and 19'2 on my set up and even the reply I posted on there http://www.boards.ie/vbulletin/showpost.php?p=72501390&postcount=9 regarding the spacing/LNB requirements for the 13/16/19 problem ;)

    Zardoz's graph there gives some excellent info, the purple line for a 1 mtr's performance compared to the T85(Yellow) and an 80cm(White) are very intersting indeed.
    And given that I think the graph is based on southern/central european location the 28'2 reception would be a good bit higher here ;)
    I might just try and stretch out to 1w Thor5 and 6 myself later :p


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