In Reply to: Mounting Antenna on roof posted by The Big O on August 21, 2000 at 23:07:23:
One of Radio Shack's remaining useful functions is to provide antenna
mounts & stuff. The have straps and brackets for attaching a pole to
your chimney or the side of your house, and even a little tripod that
you can bolt to the roof directly. Mostly you need a mast (pipe)
about 1.5" diameter, and you can use hose clamps to attach your
antenna. Height isn't critical, most of the advantage is getting it
above the roof. (I'll pass on recommending an antenna). Do put in a
ground wire!
Signal strength goes up with a higher, outside antenna, but then it
goes down as the coax cable run gets longer. If you don't need to
tranmsit, try RG-6 coax (cable TV stuff, 75 ohm).
Overload can be a problem, depends where you are. I had to add a
filter to cut out the FM broadcast band.