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Old November 28th 11, 07:40 PM posted to rec.radio.amateur.antenna
Ralph Mowery Ralph Mowery is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 702
Default Stub J-pole for six meters


"Tom Horne" wrote in message
...
Can anyone direct me to the dimensions to build a six meter J-pole
that is patterned after the Arrow Antenna two meter design that had
the feed point at the bottom of one of the elements rather than at a
point part way up the height of the matching stub.

The reason that I would like to use that design is that I would like
to use Rigid Aluminum Conduit to build the antenna. There not being a
lot of simple inexpensive fittings for Conduit the way there is for
copper pipe a mechanically simpler design would be easier to build.

Replies are welcome on or off list. Let me say that I would rather
not be subjected to any tirades about the inferiority of the J-pole
approach or the superiority of some other antenna design. That does
not mean that I am not open to suggestions for a better approach as
long as it is civilly stated and I am spared the application of Rant
Mode.

--
Tom Horne, W3TDH


If you have not found anything by now, you may go here for a 2 meter
version. Then divide the 150 mhz frequency by the 50 mhz frequency and get
a number near 3. Then multiply ALL the dimensions by that number. That is
the lengths, diameter of the elements and spacing.
http://www.w4cll.com/ijpole.html