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Old May 8th 06, 10:07 PM posted to rec.radio.amateur.antenna
Steve N.
 
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Default J pole question

OOPS! Jon,
IF it is "end-fed" is isn't a "di-pole". It is just a half wave. I
guess it is technically a monopole.
73, Steve, K9DCI

"Jon KÃ¥re Hellan" wrote in message
...

Here's a very simple end fed vertical dipole:

http://www.la2t.org/otfgallery/album...plukk/1002.jpg

http://f3wm.free.fr/radio/pocket.html

It's simply a piece of coax. The braid is stripped off the last 1/4
wavelength. Another 1/4 wavelength from the end, there is a choke to

isolate
a 1/4 wavelength of braid from the rest of the cable. Presto, dipole!

Support it with a fishing rod, hang it from a tree, whatever.

73 de LA4RT Jon



 
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