Re: [amsat-bb] Attic mounted Direct TV

["greg NoT a PhD" <greg@xxxxxxxxxxxx>]

1 carhart jacket hung over lnb and dish  no loss
> In the clear                 92
> With 1/4 Plywood             80
> With 7/16ths Plywood         77
> With 3/4 Plywood             60
> with 3/4 pressed masonite    70  (feels denser than plywood)
> with 3/4 inch stack of paper 80  (maybe I missread 80 and should be 60?)
> with 1.5 inches Plywood      43
> Drops out completely         35
>
> I have no idea if the scale is at all linear or logrithmic, and my arm was
> to short to both hold the wood and see the monitor (bolted together) well.
> So your mileage may vary.  ALso, I had no roofing felt or other materials
> to try.  I held these infront of the feed, not the entire dish.
>
> With digital, of course, the picture is always perfect.  You dont loose
> any quality until it drops out completely.  But of course, most of this
> margin is needed in case of rain.  But it looks to me like it will work
> through a simple 3/4" roof and shingles barely as long as it isnt raining
> hard...
>
> BUT, ALIGNMENT and FINDING the satllite will be a painfully tedious
> process and very frustrating.  It is hard enough with a full signal.
> FInding it with such a low margin will not be fun...
>
> de WB4APR, Bob
>
>
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