posted on May, 11 2005 @ 03:22 PM
How are you intending to keep the antenna pointed at the transmitting antenna?
When the balloon moves around you'll have worse reception than you have now.
The key is actually get the best picture you can initally, so get a big antenna with good front to back ratio's and a fair bit of gain, and stick it
in the best spot for reception. Once you have a reasonable picture, then you can think about a 'signal booster'.
If you feed an inline RF amp with a shonky, low-quality signal,
all you'll get out of it is the same shonky, low quality signal, but at a higher signal voltage. Amping a rubbish picture is only going to give you
a amped up rubbish picture.
The exception to that is if the problem is to do with a lack of gain in the signal, in which case my opening remarks are the only real way to go.
UHF TV signals can follow some complex propogation patterns, bouncing off buildings, hills, shipping, and all kinds of other stuff - all, and any of
which will contribute to your picture quality (or lack thereof).
The balloon idea is ok in principle, but not for a directional high-frequency signal like UHF TV ...
Good luck tho '