Quote:
Originally Posted by staticMHZ
I see them all the time over here, sometimes they are so old that the elements are all snapped off and broken and sometimes I see some that look in perfect condition like they were just put up.
But the real question is, are they even used? Why else would they still be up? Who would want a big ugly antenna on top of their house?
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Two things. One I think antennas are pretty.
The antenna I think are ugly include the ClearStream, SquareShooter or about any antenna made not to look like antenna, with very little aluminum in the air and tries to make up for it with some low noise amp.
That said, have I ranted here where antennas got to be considered ugly? I should make it a separate thread to not troll here.
But a huge 5 element 20 meter beam sitting up 100 or more feet in the air is better than most women I ever met...
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But if you are into building at all, old TV antennas are a bonanza of parts. It's really easy to take an old all band beam and make it into a single channel Yagi for VHF. Great for markets where there is only one VHF channel. All you need is a hacksaw, drill and some aluminum screws and bolts. There are plans for VHF yagis here.
http://www.skyscan.ca/3ElementYagi.htm
The chart is for FM, but since High Band VHF TV is the exact second harmonic of the FM band, you can take the VHF channel by frequency, divide that by 2, look it up on the chart then divide each dimension by 2 and build a good VHF yagi.
An compared to his construction techniques, if you have old antenna parts you can make it look like came from a factory with very little work.
You can bolt the directors and reflector directly to the boom, no need to insulate them. Then just use the driven element off the old antenna and it's insulating parts. Bingo, instant High Band beam for pennies from old antennas found in the trash.
If you see an old antenna that is beat up, knock on the door (if it's a safe neighborhood ) and offer to take it down free.