I just got a new super penetrator 500, after putting it together and installed. I have noticed when it rain's my SWR improves. Has anyone else had this happen with their antennae and if so how to make it stay that way.... Lol
11 meterNormal. If you watch the swing you can compensate by shifting your center frequency to minimize the shift or use an antenna tuner to at least protect the exciter.
You tuned your SPT500 for which band?