CB tuning issues High SWR

I think I've read almost every possible thread on SWR tuning issues in the last couple of day and now I turn to you for problems I can't seem to solve.



I've installed a cobra 75 wx st with a 3' fire stick antennae. When tuning the antennae I get SWR readings that are off the charts. I've checked and double checked grounding issues with the antennae mount, and checked continuity in the coax and connectors to make sure I didn't have a bad cable. I did find that I had the nylon washer on the wrong side. It's now on the bottom side of the antennae isolating it from the mount.



Any ideas???
 
I'm sure you have gone through all of this but anyways- how long is the coax cable? Is the excess wound into a small coil (10" or less), is the firestick mounted close to any other antennas, are you doing the test near power lines or close to buildings?
 
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