[Elecraft] KPA500 Faulting on high SWR on power rise

Bob McGraw K4TAX rmcgraw at blomand.net
Sat Feb 24 19:46:55 EST 2018


Based on the specification of 500 volts peak,    5KW at 50 ohms = 500 
volts.  It would seem the PL-259 is adequate for ham radio applications 
per specification to 0.3 GHZ or 300 MHz without issues.     Of course 
one is dealing with 50 ohms, which implies essentially a 1:1 SWR.

73

Bob, K4TAX




On 2/24/2018 4:53 PM, john at kk9a.com wrote:
> Really?  An Amphenol UHF connector only has a 500v rating.
>
> John KK9A
>
>
> Bill Johnson k9yeq wrote
>
> 1000v to me could be too low for a 500W amp.  You can for the time being
> leave the plug out, just disconnect when you are not using your equipment.
> I use a remote disconnect to remove the antennas at my remote grounding
> panel.
>
> 73,
> Bill
> K9YEQ
>
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