copclyde, the fact that changing the coax length changed the SWR says that you have an antenna problem.
Im sure you know that changing coax lengths is not the way to fix a high SWR issue when it comes to this type of antenna.
your antenna could have sustained some damage from a close by lightning strike which may have also fried your radio's output transistors.
no, the groundplane kit is not reflecting off the tower.
you either have an antenna problem, a grounding problem, or both.
also, this thread is about five years old. you will find that you get more help if you start a new thread when they are this old.
best of luck,
LC
Im sure you know that changing coax lengths is not the way to fix a high SWR issue when it comes to this type of antenna.
your antenna could have sustained some damage from a close by lightning strike which may have also fried your radio's output transistors.
no, the groundplane kit is not reflecting off the tower.
you either have an antenna problem, a grounding problem, or both.
also, this thread is about five years old. you will find that you get more help if you start a new thread when they are this old.
best of luck,
LC