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Rusty areas on satellite dish.

Discussion in 'Audio Visual' started by roughcaster, 15 Jun 2010.

  1. roughcaster

    roughcaster

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    Hi guys,,
    my neighbour has a satellite dish that is going a bit rusty here and there, although it is in good enough condition.
    Question,,, can it be painted with a suitable metal paint, after the surface rust has been treated??
    Many thanks.
     
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  3. streetlighter

    streetlighter

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    Yes use some spray paint with a matt finnish not a gloss as this would reflect the signal. If the dish in question is a Sky minidish it may be cheaper to replace the whole thing as they can be bought quite cheaply on ebay.
     
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  4. roughcaster

    roughcaster

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    Thanks for the reply Streetlighter. The dish in question is the normal Sky dish,, 24" across,, is this what you refer to as a "Sky mini dish"??
     
  5. ChrisFrost

    ChrisFrost

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    Some info on dish sizes LINKY :D

    Personally I'd go for a new dish. Painting a rusting mesh dish will be a p.i.t.a. If I needed to change, and the dish wasn't exposed to high winds, I'd get an aluminium solid dish for around £40-£45. Bye bye bad weather interference :D
     
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  6. roughcaster

    roughcaster

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    Thanks for the info Chris,,, i'll pass that on too. ;)
     
  7. Mickymoody

    Mickymoody

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    I got a dish and LNB from a radio rally for £8, if your dish is rusty, cheap to replace.
     
  8. tapir

    tapir

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    disclaimer: I have nothing to do with Sky installations, satellite communications, or anything remotely sky dish/sky tv related...but....

    surely the whole point of the dish is to reflect the signal into the receiver (aka the LNB)?

    this is a genuine question, not an attempt to contradict/play devil's advocate!

    and seconded for buying a new dish from ebay, there are plenty of good deals.
     
  9. Monkeh

    Monkeh

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    Yes, now what happens if you add paint with metallic particles at odd angles?
     
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  11. plugwash

    plugwash

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    probablly not a whole lot. notice that a sky dish works fine despite the fact it's made of mesh!

    imperfections that are significantly smaller than a wavelength don't really matter much. SKY is the the KU band which makes the shortestt wavelength about 1.6cm
     
  12. streetlighter

    streetlighter

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    I learned from reading satellite magazines and fourms that you should use the matt pait as a shiny gloss paint would deflect the signal away from the focal point on the LNB.
    The satcure website has some great info on how to paint or hide a satellite dish.
     
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  13. Mickymoody

    Mickymoody

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    Logic would tell me that by using matt paint, causes the suns rays to be absorbed, and not reflected, which would damage the LNB.

    I presume the dishes are mesh to prevent this problem, the suns rays pass through the dish, and are thus reflected less.

    If my dish was rusty, I'd definately upgrade to a larger dish, as used in Scotland, as bad weather often causes picture freeze, even though the dish is setup correctly (and has been replaced already) FOC by Sky, even though I don't subscribe to them.
     
  14. ChrisFrost

    ChrisFrost

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    I think the mesh dish design is more to do with keeping costs down than absorbing the sun's rays. Wind passes through a mesh dish, so a lighter bracket can be used.
     
  15. Mickymoody

    Mickymoody

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    I think thats contempt. I've installed solid and mesh dishes, and this comment borders on contempt, and ignorance, but no offence Chris.
     
  16. Monkeh

    Monkeh

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    You have issues.
     
  17. Mickymoody

    Mickymoody

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    You make unfounded allegations. Fair?
     
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