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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
lightning strike on lnb
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<blockquote data-quote="JohnC" data-source="post: 95469" data-attributes="member: 177912"><p>Lightening doesn't have to make a direct strike to take out or damage an LNB....</p><p></p><p>Quit a large area surrounding a strike can become statically charged which can cause damage.... (I recently lost reception on both my sat Receivers for about one and half minutes after a lightening strike about a 100 metres away.... The only explanation was that the whole area was electrically charged for the duration, completely shielding all satellite signals). </p><p></p><p>The LNB could be working (giving a reading on the sat meter) but have limited function.... in this case for example the Local Oscillator could have blown which would prevent the receiver producing a picture.</p><p></p><p>Its good practice to earth your dish... this will help to discharge any positively charged field that may build up around your LNB and protect it </p><p></p><p>As a note of interest.. I remember my old grand mother telling me she could feel tingling in her fingers while knitting with steel knitting needles during thunderstorms.</p></blockquote><p></p>
[QUOTE="JohnC, post: 95469, member: 177912"] Lightening doesn't have to make a direct strike to take out or damage an LNB.... Quit a large area surrounding a strike can become statically charged which can cause damage.... (I recently lost reception on both my sat Receivers for about one and half minutes after a lightening strike about a 100 metres away.... The only explanation was that the whole area was electrically charged for the duration, completely shielding all satellite signals). The LNB could be working (giving a reading on the sat meter) but have limited function.... in this case for example the Local Oscillator could have blown which would prevent the receiver producing a picture. Its good practice to earth your dish... this will help to discharge any positively charged field that may build up around your LNB and protect it As a note of interest.. I remember my old grand mother telling me she could feel tingling in her fingers while knitting with steel knitting needles during thunderstorms. [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
lightning strike on lnb
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