Cover over LNB eye?
- Thread starter Mr Tony
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Just a comment - my primestar lnb's have a thin plastic inside (one was actually torn, so I pulled it all out).. and all of my c-band lnbs have a cover (with holes) for them. Of course, the c-band lnbs are for prime focus dishes, so they are always pointing down and allow water to run out and not in.
For an offset lnbf, I'd probably cover it at least with some thick saran wrap material to prevent water from getting in.. but then again, that might seal it too well and trap moisture in .. hmm
For an offset lnbf, I'd probably cover it at least with some thick saran wrap material to prevent water from getting in.. but then again, that might seal it too well and trap moisture in .. hmm
ingenuity
How about a big rubber band holding on a nice thick piece of a plastic coke bottle, or just a piece of a garbage bag. OF course the bag won't last too long in the sun.
How about a big rubber band holding on a nice thick piece of a plastic coke bottle, or just a piece of a garbage bag. OF course the bag won't last too long in the sun.
I would try to keep the water out of an LNBF if your using an offset on KU. I had a little crack in my Primestar cover at the bottom that allowed water in after a heavy rain. The next day my signal was only 53 quality. I took off the cap and found a little watter in the horn. I dried it out and BAM 99 quality again. So I put the cap back on and used a bit of clear RTV silicone on the crack. After the next rainstorm 99 quality so its well sealed.
Try to get some thin plastic that won't warp in the sun and silicone it on there. You should be good to go.
Try to get some thin plastic that won't warp in the sun and silicone it on there. You should be good to go.
Just to brain-storm it, how 'bout a disc made from a credit card, secured with a little of that RTV mentioned above?
And before you do the deed, leave it in your gas oven over night.
The pilot light should warm the whole thing, and dry it out.
...of course, I really did like this idea, too:
What about a big red dot of that?
....no, on second thought, it's the big green Tide bottle cap I prefer.
Wouldn't that make quite the statement?
Where's my camera?
watch out, he's having a Tide-moment !
And before you do the deed, leave it in your gas oven over night.
The pilot light should warm the whole thing, and dry it out.
...of course, I really did like this idea, too:
I'm about to throw out a large empty Tide jug.
What about a big red dot of that?
....no, on second thought, it's the big green Tide bottle cap I prefer.
Wouldn't that make quite the statement?
Where's my camera?
watch out, he's having a Tide-moment !
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C-band LNB's do have a seal between them and the feedhorn. (at least some do) I think you should use some silicon an glue a piece of plastic over the front. Now to find a piece of plastic that will not deteriorate in the sunlight, hot/cold weather and not attenuate the signal..... I think you could start by trying a lid from a margarine container, or even an old tupperware lid. (they do stand up in the hot/cold. Do not know how they like the sunlight, or if they are transparent to the Ku signals.
I guess the wasps haven't found that hideout yet
Or, maybe, they prefer the larger, more spacious C-band feedhorns....
just too good to let slide
Okay, I just had to add pictures to insults...
Or is it that a picture is worth a thousand words...?
Whatever, here is the red Tide bottle and green cap, along with another likely candidate.
If this doesn't give you ideas... or at least some nightmares... well, at least I tried.
Okay, I just had to add pictures to insults...
Or is it that a picture is worth a thousand words...?
Whatever, here is the red Tide bottle and green cap, along with another likely candidate.
If this doesn't give you ideas... or at least some nightmares... well, at least I tried.
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Cover over LNB eye ?
Yes, you definately need to keep the dust, rain, snow and the bugs out !
I have an LNB where the plastic cap turned into dust from sun damage--
replaced it with a white SPRAY PAINT CAP, it was a nice tight fit, just needed to cut around the side and silicon it to the metal housing!------looks like as the original !
Yes, you definately need to keep the dust, rain, snow and the bugs out !
I have an LNB where the plastic cap turned into dust from sun damage--
replaced it with a white SPRAY PAINT CAP, it was a nice tight fit, just needed to cut around the side and silicon it to the metal housing!------looks like as the original !
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While using plastic caps to keep out rain and snow is a good thing. You might want to coat the plastic with some U/V coating so that your New cap last longer.
I am not sure if the new plastic paints will affect sat signal but i don't for see any real problems.
I hope you found this useful..
I am not sure if the new plastic paints will affect sat signal but i don't for see any real problems.
I hope you found this useful..
Hey Guys:
No matter what you use for a cover, DO NOT seal it up airtight. Condensation will form after temperature changes. The cavity needs to "breath", so to speak.
Harold
No matter what you use for a cover, DO NOT seal it up airtight. Condensation will form after temperature changes. The cavity needs to "breath", so to speak.
Harold
....
If you see one sealed from the factory, it's purged with nitrogen and it won't condensate. Break the factory seal and air will condense into moisture. Like to never found the cause of my varing signal levels until I realized it was condensation.
Otherwise, like Channelmaster, there are vent holes somewhere. The Channelmaster lense can be rotated so that a small visor is upwards and the vents are shielded from direct rainfall.
Harold
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