[Antennas] J pole horizontally polarized antenna

Thu Jun 10 11:12:45 EDT 2004

That will work of course, but won't result in an omnidirectional
pattern like a vertically-polarized J-pole. The turnstile antenna
mentioned in other replies is probably a better choice for this
application.
Bob, N7XY
On Thu, Jun 10, 2004 at 02:37:09AM -0400, NA4FM (Buck) wrote:
> Just fold the 1/2 wave vertical element horizontal and leave the 1/4
> wave matching stub vertical, or lay the antenna horizontal. I have
> considered cophasing two j-poles horizontal to see how that works.
>> Buck
> na4fm
>> > -----Original Message-----
> > From: Dan Peek [mailto:dan.peek at 3abn.org] 
> > Sent: Tuesday, June 08, 2004 10:07 AM
> > To: antennas at mailman.qth.net
> > Subject: [Antennas] J pole horizontally polarized antenna
> > 
> > 
> > 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.
> >