[TowerTalk] lightning protection at towers and bunkers on former AT&T microwave relay sites

[Kim Elmore]

The cites that Jim gives are most excellent. I am a research meteorologist at the National Severe Storms Lab and, while lightning isn't my area, I know the scientists that study it. They have lots of evidence that the porcupines sound like a nice idea, but the the electrodynamics of how lightning propagates renders the porcupines ineffective. 

73,

Kim N5OP

"People that make music together cannot be enemies, at least as long as the music lasts." -- Paul Hindemith

> On May 20, 2017, at 07:24, jimlux <jimlux at earthlink.net> wrote:
> 
>> On 5/20/17 4:29 AM, Dave Sublette wrote:
>> The he article I recall was about the FAA.  They did an extensive test, comparing many of their sites that used this device to many of their sites that did not use it.  The results were that there was no clear evidence that the device prevented lightning strikes as advertised.  Try google for FAA testing of lightning suppressor or some such working.
>> 
> Somewhere there's actually a nice photo of lightning striking one of the devices at Cape Canaveral.
> 
> The seller used to (and may still) claim "as used by NASA", but in reality, that's because NASA went out and bought a bunch of different devices for testing.
> 
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