[Antennas] J pole horizontally polarized antenna

dtx dtx at wood.tzo.com
Tue Jun 8 14:08:37 EDT 2004


Are you going to be in the center of your coverage area? Do a google 
search on

turnstile transmitting antennas TV

and do some reading on turnstile antennas.

Gary WA6DTX

Dan Peek wrote:

>I have been asked to construct an antenna for a small community TV
>transmitter somewhere in Africa on our channel 7 (174-180MHz). The J
>pole or super J pole looks like a good candidate, but I believe it is
>vertically polarized. Is there any way to make it horizontally polarized
>(or elliptical for that matter)? Any way to electrically adjust the down
>tilt? I am considering using soft copper tubing of ½” or 5/8” so it can
>be rolled up in a suit case and carefully straightened out on arrival.
>Any thoughts or suggestions would be welcome--other antenna types,
>calculation software, construction ideas, etc.
>
>Thanks,
>
>Dan Peek N4FAA
>Dan.peek at 3abn.org
>  
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