Two things, first it will  not work very well on 1269 MHz.

And I have one as well.   Inside that blue heat shrink tubing they had a simple
crimp connection between the Copper coax center pin and the Aluminum Tube.
That connection corrodes and you may need to clean it up to get a good
Return Loss/ SWR again.      Kent WA5VJB

On Wednesday, March 31, 2021, 7:13:07 PM CDT, Curt Laumann <curt.laumann@gmail.com> wrote:


Please see the following link:


Thank you.

Curt / K7ZOO
K7UAZ Station Manager
University of Arizona

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