[Premium-Rx] Lightning hitting your Premium RX

Carcia, Francis A HS francis.carcia at hs.utc.com
Tue Apr 5 14:41:54 EDT 2005


 The bottom line for lightning strikes is you have to provide a low Z to
ground to pass a lot of current or you will generate a lot of voltage.
(Transfer Z). I just did some interesting testing with poorly shielded wire
and observed a lot of induced voltage on the center conductor due to shield
resistance. Ground systems that are not properly bonded to a single point
ground can generate very large voltage offsets. A couple days playing with
our big pulse generator and all the NEC stuff made sense.
I remove the antenna coax with a bird switch when not in the shack. Then I
take the coax off the splitter just in case.
no path is much better than a poor path.  fc  




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