J-Pole Antenna Design
SAVE TIME BY USING THE
CALCULATOR BELOW.
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| HAVE FUN DESIGN YOUR OWN J POLE FOR ANY BAND! (try it with aluminum too!) either way....TRY IT! |
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| DANGER! DO NOT INSTALL ANY ANTENNA NEAR POWER LINES. HAVE FUN..... NOT A FUNERAL! |
| Design your J Pole for hf, 2 meters, 220, 440 and up! |
| On most of the J Pole designs out there, a choke should be used as close to the feedpoint of the antenna as possible to help prevent rf on the feedline and creating difficulty with SWR readings.. For 2 meters, the coil is 4 turns of coax at 5 inches in diameter. You should get good results with the choke within 3 or 4 inches of the feedpoint on 2 meters. Hint.... Use the last part of your feedline as the choke before attaching to the feedpoint! |
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| Full Calculator and Drawing Credit K4ABT G. E. "Buck" Rogers Sr mailto:k4abt@packetradio.com www.buxcomm.com www.PacketRadio.com See his articles in back copies of CQ Magazine (The Packet Users Notebook) Copyright 1996 © All rights reserved ® |
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| J Pole Calculator and drawing used on this page are Copyrighted by K4ABT G. E. "Buck" Rogers Sr k4abt@packetradio.com www.buxcomm.com www.PacketRadio.com See his articles in back copies of CQ Magazine (The Packet Users Notebook) Copyright 1996 © All rights reserved ® |
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