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Satellite TV receivers & systems support forums
Fringe Reception General
Losing and regaining Channels
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<blockquote data-quote="Terryl" data-source="post: 1113993" data-attributes="member: 369937"><p>Next time you loose channels during the day, go out and spray down the LNB with a garden hose for a few, if the channels come back, but fade out again you need a new LNB.</p><p></p><p>Also I don't know exactly where in Valencia you located, but dishpointer says that the signal from 28W comes in from a direction over the Ocean, <em>what could be going on</em> is a temperature inversion layer causing a signal fade, this inversion layer could act like a mirror**, causing a out of phase signal to mix with the true signal, this causes a drop in signal at the receive antenna. (the dish) Not much can be done about this type of problem except move the dish higher, or place something under the dish to block the reflected signal.</p><p></p><p>**Have you ever driven down a road and seen what looks like water standing on the road out in front of you, but get to that spot and it's dry, this is the mirrage effect of the Sun heating up the air and causing a reflection, the same can happen to RF signals at different times during the year.</p></blockquote><p></p>
[QUOTE="Terryl, post: 1113993, member: 369937"] Next time you loose channels during the day, go out and spray down the LNB with a garden hose for a few, if the channels come back, but fade out again you need a new LNB. Also I don't know exactly where in Valencia you located, but dishpointer says that the signal from 28W comes in from a direction over the Ocean, [I]what could be going on[/I] is a temperature inversion layer causing a signal fade, this inversion layer could act like a mirror**, causing a out of phase signal to mix with the true signal, this causes a drop in signal at the receive antenna. (the dish) Not much can be done about this type of problem except move the dish higher, or place something under the dish to block the reflected signal. **Have you ever driven down a road and seen what looks like water standing on the road out in front of you, but get to that spot and it's dry, this is the mirrage effect of the Sun heating up the air and causing a reflection, the same can happen to RF signals at different times during the year. [/QUOTE]
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Satellite TV receivers & systems support forums
Fringe Reception General
Losing and regaining Channels
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