OK, fellow hams, please tell me why I can't figure out what is probably something simple. I have an HF hex beam that I have used for 5 years. I recently put a new pl-259 on the home end... and it went dead. I figured I screwed up the connector. Did it two more times... dead again. I checked for a short in the cable. There is none. BUT fooling around with the connection I found the antenna basically worked so long as the ground shield was NOT connected. Connect the shield, and, poof! Dead again. What am I missing??