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In all honesty if my antennas pl259 is loose. I'm not even going to test the coax. I'm going to tighten it up, go inside, turn on the station, and key the microphone. If that pl-259 is as Loose as it was the first time that's what's causing my crazy SWR issues. If the pl-259 is tight the next thing I will do is open up the box to the insulator tester, install the battery read a quick review on how to use it and test both ends of the pl-259. If it's not the coax. I will add a picture of my IMAX standing up in my garbage pail. I have totally convinced myself it can only be one of two things. The coax or the antenna. Nothing's wrong on the inside. With the dummy load hooked up the SWR is perfect 1.1: 1. If I look with a magnifying glass it might even be just a bit lower which I think might be common when using a dummy load.