garbage bag covering my dish - AVS Forum
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post #1 of 13 Old 09-05-2003, 08:41 AM - Thread Starter
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Our house is being painted so, as a precaution, we covered each of my 5 roof top dishes and lnbs with black plastic garbage bags. I figured that it would be a week without any hdtv.

But every satellite continues to work. My signal strength seems to have dropped only 5-6 points.

How is this possible? If some leaves on trees can block the signal, why doesn't covering the entire dish do the same?

Shelly

Farewell Voom. Farewell Directv. Farewell Bell Express Vu. Farewell Dish.
Had 6 dishes, now none.
Back to Comcast. Farewell Comcast, now back to Dish 120+HD. Farewell Dish.

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Back in the early days, there were just HD demo loops, no programming. Now HD 3D, amazing!

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post #2 of 13 Old 09-05-2003, 08:46 AM
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Watch out that the sun does not get the LNB's too hot!

It's moisture in the leaves that blocks the signals.
There are dish covers to make a dish blend in with their environment better (i.e. looks like a rock). I think most plastic passes through sat signals OK. I've even heard of mounting a dish in an attic behind only vinyl siding and some rigid insulation and it works OK (unless the siding is too wet).
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post #3 of 13 Old 09-07-2003, 08:04 AM
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Quote:
Originally posted by shelly
... If some leaves on trees can block the signal, why doesn't covering the entire dish do the same?
Some materials block the signal. Others allow it to pass through. Cover it with something like an aluminum foil bag and you'd lose the signal.

Just curious, why do you have five dishes?
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post #4 of 13 Old 09-07-2003, 10:26 AM - Thread Starter
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Quote:
Originally posted by arxaw
Just curious, why do you have five dishes? [/b]
So they can play together. :)

Two are for BEV, two are for Dish and one is for Directv.

Shelly

The plastic bags come off Monday or Tuesday when the painting is complete.

Farewell Voom. Farewell Directv. Farewell Bell Express Vu. Farewell Dish.
Had 6 dishes, now none.
Back to Comcast. Farewell Comcast, now back to Dish 120+HD. Farewell Dish.

Returned to Comcast 06/2012.

Back in the early days, there were just HD demo loops, no programming. Now HD 3D, amazing!

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post #5 of 13 Old 09-07-2003, 10:35 AM
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Shelly, you shame us. :D

Vimeo is the home of the Super8 Shooter...
http://vimeo.com/super8shooter
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post #6 of 13 Old 09-07-2003, 08:50 PM
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Bottom line on the material for the bags: sat signals are microwaves, and you can usually microwave (in the oven) plastic without problems, right? So, the plastic doesn't absorb a lot of the microwaves. :)

And, if you want to get more into it, the water part above is sure correct. A microwave oven really works by having the water in food absorbing and heating the food. (End of physics lessons for today! :D )

-Lee (See my profile for equipment.)
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post #7 of 13 Old 09-09-2003, 06:36 AM
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Personally, I think putting dishes in garbage bags is the start of an excellent trend...

Greg
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post #8 of 13 Old 09-09-2003, 08:44 PM
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Now play nice Greg :)
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post #9 of 13 Old 09-10-2003, 06:35 AM
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heheh, Greg must be one of those paranoid cableco employees. :)
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post #10 of 13 Old 09-10-2003, 06:37 AM
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This would be a great commercial for the cable companies. But I guess their stuff is already trash
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post #11 of 13 Old 09-10-2003, 08:34 AM - Thread Starter
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The worker who removed the garbage bags yesterday MOVED my BEV 82 sat dish, the most difficult for us to aim. Had I not decided to turn on BEV in the afternoon, I would not have discovered this while the boss was still here. As it was, the worker did not say anything until we asked.

Luckily, he just moved the azimuth and within, 20 minutes we were able to get my signal back. But at a few points lower signal strength from before. Running 61 on Trans 5, which is just 2 points less than my BEV neighbor gets so I should be ok. No major weather conditions out here.

Shelly

Farewell Voom. Farewell Directv. Farewell Bell Express Vu. Farewell Dish.
Had 6 dishes, now none.
Back to Comcast. Farewell Comcast, now back to Dish 120+HD. Farewell Dish.

Returned to Comcast 06/2012.

Back in the early days, there were just HD demo loops, no programming. Now HD 3D, amazing!

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post #12 of 13 Old 09-10-2003, 10:03 AM
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My HD dish aimed at 61.5 shoots right through a leafy tree with no problem.

Plastic is a dielectric which is transparent to electromagnetic waves.
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post #13 of 13 Old 09-10-2003, 12:49 PM
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Just watch out for those Hefty Steelsack bags. :D

In all seriousness, though, a standard kitchen-grade bag shouldn't cause any issues, except for potential heat build-up. I'm not sure what the real covers are made of.
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