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The J Pole Portable Antenna Stand
By N6JSX 08/06/2012
The 2m/440 copper-pipe "J" Pole is truly a simple and most effective antenna that does not require any counterpoise radials/ground. When I'm on the road as a Contract Engineer I take a J Pole antenna, 50w mobile and an Astron VS12M with me. Most extended stay motels/apartments will not allow mounting any antennas to their structure. Leaning a J pole against the wall compromises the low angle radiation pattern of the J pole. I solved this by making a solid but removable stand for the J pole allowing me to place it on the patio, balcony or in the corner as a hat stand.
The PVC stands (and hat rack antlers) are made from 3/4" PVC, elbows, cross, 45-angles, end-caps, 1/2" thread adaptor, PVC glue, and some brown spray paint.
The key to these stands is the use of copper-pipe 1/2" CXM copper adapter soldered to both ends of the long J pole element that allows the use of threaded PVC fittings.
I placed a copper sleeve (only soldered to the lower section) in the middle of the long J element. The J pole breaks down into two 40" copper pipe pieces. Now I can easily unscrew the PVC parts from the J make and make all easy to pack and ship!
NOTE: the PVC gluing of the legs can be tricky to insure the legs are placed properly during glue drying to insure the J pole remains balanced and perpendicular to the floor. I hung a bubble level on the long J pole element to insure dead-center balance alignment. The great thing about PVC is if you mess up it was a cheap mistake to replace/repair!
Update to original article above 09-2013
My original tri-leg J-Stand on this page was found too unstable over time becaues of the small footprint. I found Lowes has a 3/4" 90 degree-side-outlet-elbow that allowed me to make a far more stable quad-leg J-Stand. See picture below:
For more J-Stand information with "how-to DIY" download the totally new revised
" Quad leg J Stand2. pdf " here..... de N6JSX.
Copyright 2012, N6JSX Sidney, OH
All rights reserved == only non-profits may copy or reprint.
Editors note: There are many ways to use this idea and modify it for use with many small antennas.
Send us your ideas and feedback for possible publication here!
Email Dale Kubichek n6jsx AT yahoo.com