[Elecraft] KPA500 Faulting on high SWR on power rise

[Bob McGraw K4TAX]

I've observed many times an arc occur from the center pin to shell with 
an unterminated line during a thunder storm.   No damage to the 
connector occurred however.   Makes for an eerie dang sound too.

73

Bob K4TAX



On 2/24/2018 8:29 PM, GaryK9GS wrote:
> I have never seen a properly installed UHF connector, in a matched system, arc.
>
>
> 73,
> Gary K9GS
> -------- Original message --------From: john at kk9a.com Date: 2/24/18  5:14 PM  (GMT-06:00) To: 'Elecraft Reflector' <elecraft at mailman.qth.net> Subject: [Elecraft]  KPA500 Faulting on high SWR on power rise
> I just posted almost the exact thing. I should have read all of the posts
> first.
>
> It is interesting that coax has a much higher voltage rating than the
> connectors however Amphenol UHF connectors rarely fail even after direct
> lightning strikes.
>
> John KK9A
>
> K6WRU wrote:
>
> The Amphenol voltage rating for UHF connectors is 500 V peak. So the
> connectors could be another weak point.
>
> https://www.amphenolrf.com/connectors/uhf.html
>
> wunder
> K6WRU
> Walter Under
>
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