Multi LNB Setup

There are 10 replies in this Thread which was already clicked 2,027 times. The last Post () by Royw.

    Hi
    I am trying to use my old 1deg west 80cm dish to get feeds from Hotbird 13E astra 19E And *** 28E using a multi LNB holder and switch
    I have got Hotbird setup fine but am not having much joy with the others I read somewere today about rotating the dish if you are trying to get multi saterlites is this neccessary?
    My dish is old and on a horizontal mount so rotating would be dofficult


    Regards


    Roy

    If you are using a multilnb arm you cant have it pointing at its original position for example when i did mine it was at 28e , i wanted 28e 23e 19e and 13e but my dish was pointing at about 20e almost the middle of the arc i was trying for but no need to rotate the dish one set


    Steve

    Yes i have set the dish at approx 19 deg and set the elevation for 19E I then got the channelson the Astra 19E satelitte fine
    I then tried to get Hotbird at 13E but no matter were i slid the holder on the arm i couldnt get anything i Stared with them touching and moved them apart but no signal.
    I have twisted the new LNB carrirer to mke the 13E lNB lower than the 19E one and the 28E LNB higher than19E one but still one joy.
    At this point i Calculater the distance between the LNBs clamped them up and rotated the dish to get a signal on hotdird this lost the signal on 19E and so on


    What am I doing wrong


    Thx Roy

    get a lock on 19e then change the vertical pitch up or down slightly to catch 13e. the lnbs need to be rotated very slightly clockwise to fine tune after that. dont worry about 28e its the easiest. remember it could also be the focus but should be fine if lnbs are all the same length

    Sorry for being thick
    but do you mean tilt the dish when you say change the vertical pitch has the Multi LNB holded I have has no vertical adjustment (apart from bending it)?
    As i siad before i Hve changed the relative height of each LNB but at the moment i can get ! satelitte but no signal from the others.


    Regards


    Roy

    Quote from Royw

    Sorry for being thick
    but do you mean tilt the dish when you say change the vertical pitch has the Multi LNB holded I have has no vertical adjustment (apart from bending it)?
    As i siad before i Hve changed the relative height of each LNB but at the moment i can get ! satelitte but no signal from the others.


    Regards


    Roy

    you need to rob peter to pay paul till you get them all in line your best bet if you dont have a good meter is the enigma signal meter for android and enable webif on your box login and the phone or pad you have it on will sort you out with better results as its instant you can shif the lnbs manually to get a hint of signal then fine tune and it will let you change satellite without running in and out , btw phone or pad needs to be connected to your wifi , worked a treat for me


    Steve

    Quote from anniman

    Little steps and patience


    i should have mentioned that the prime focus LNB is on hotbird in the pictures i posted !

    78cm dish on tm2300 metal gear motor + 1m Orb with tm2300 + 1.8m Channel Master on H-H floor mount + 80cm ISS with TM2300 AND Inverto Black LNB,inverto Unicable QUDL 42 LNB,- Global invacom Dscc LNB,- Triax KA LNB, - Yuri LNBF C Band YLF-CDP16C

    That app looks as if it could be very useful and will save all the trips up and down the ladder
    Also gives you a alternative remote control
    Thank you for the help will give it another try the weekend.


    Regards Roy

    Out of interest I have been told that the 28 E lnb should be higher than the 19E and the 13E should be lower than the 19E
    I have achieved this by bending the multi lnb arm up and down but
    what sort of height difference are we talking about 1mm, 10mm or 50mm ?


    Regards
    Roy

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