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Possible Satellite interference?

  • 27-02-2020 3:53pm
    #1
    keepalive213
    Closed Accounts Posts: 685 ✭✭✭


    Standard 64cm dish picking up astra 2.
    Facing right into 3 phase power cables which are around 20m from dish. Transformer close also and some insulators.
    Dooncarton across the bay not far, lots of stuff up there, Radar, Saorview, line of site broadband providers , '3' phone / broadband.
    VL and HL are grand.
    VH and HH are affected.
    Any help appreciated.


Comments

  • #2
    L1011
    Registered Users, Registered Users 2 Posts: 71,113 ✭✭✭✭L1011


    Have you swapped the LNB and/or tried a different box as that would suggest either a failure or a lack of 22khz tone rather than interference to me, due to it being both highs.

    The angle the signal comes in at is a lot higher than it looks so the power cables are likely out of sight; but wouldn't easily affect just the high bands anyway.


  • #3
    keepalive213
    Closed Accounts Posts: 685 ✭✭✭keepalive213


    L1011 wrote: »
    Have you swapped the LNB and/or tried a different box as that would suggest either a failure or a lack of 22khz tone rather than interference to me, due to it being both highs.

    The angle the signal comes in at is a lot higher than it looks so the power cables are likely out of sight; but wouldn't easily affect just the high bands anyway.

    Yes tried a different Lnb, both new. From bottom of dish up at roughly 45 degrees is where the power cables are. Using a horizon sat meter.
    Up the garden behind the house signal is fine.


  • #4
    L1011
    Registered Users, Registered Users 2 Posts: 71,113 ✭✭✭✭L1011


    And the box? Its what generates the tone. It can also sometimes be turned off in software. And you're not using a multiswitch by any chance?

    It is possible, albeit I've never experienced it, that something is generating noise at frequency that's preventing the LNB from hearing the tone. Wires should be out of sight of the dish but sight won't be the cause here.


  • #5
    Elvis Hammond
    Registered Users, Registered Users 2 Posts: 496 ✭✭Elvis Hammond


    keepalive213 wrote: »
    Yes tried a different Lnb, both new. From bottom of dish up at roughly 45 degrees is where the power cables are. Using a horizon sat meter.
    Up the garden behind the house signal is fine.

    Have to ask the silly questions; I assume the 'up the garden' check was done after the problem location was tried, & the meter has been used at other locations since?


  • #6
    winston_1
    Registered Users, Registered Users 2 Posts: 1,688 ✭✭✭winston_1


    keepalive213 wrote: »
    Yes tried a different Lnb, both new. From bottom of dish up at roughly 45 degrees is where the power cables are. Using a horizon sat meter.
    Up the garden behind the house signal is fine.

    The satellite elevation is under 30˚ so not that then.


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  • #7
    keepalive213
    Closed Accounts Posts: 685 ✭✭✭keepalive213


    Elvis Hammond wrote: »
    Have to ask the silly questions; I assume the 'up the garden' check was done after the problem location was tried, & the meter has been used at other locations since?

    Yes used twice more on the same day, working well.


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