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Old March 14th 05, 08:09 PM
Dave Platt
 
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Can anyone point me to a good site for construction a 5/8 wave 2M antenna???

I tried home-brewing one already with poor results .... a conductor up a
piece of PVC .... same conductor wound into a coil at the bottome
connected in series to the center of the coax. 4 1/4 wave radials
connected to outer conductor.


I believe there's a project in the ARRL Handbook which shows how to
convert a Radio Shack CB whip antenna to a 2-meter 5/8-wave - it has
the details for the matching coil that is required.

http://www.arrl.org/tis/info/pdf/8009022.pdf has another QST article
which shows how to construct one from scratch, using a technique that
doesn't require a matching coil (the matching inductor is made from a
stub).

I haven't tried either of these myself.

With regard to the version you made - did you account for the loading
effect of the PVC when you measured and trimmed the length of your
radiator?

--
Dave Platt AE6EO
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