Re: NOT the feedline

Posted by donovanf on Jun 02, 2020; 5:31am
URL: http://elecraft.85.s1.nabble.com/Re-NOT-the-feedline-was-KPA-1500-faulting-on-6m-SWR-issues-tp7661502p7661567.html

The Amphenol 83-1SP connector that many of us use is rated at 1000
volts RMS, That well exceeds the voltage that most amateur 1500
watt amplifiers can safely produce without much more severe internal
damage to the amplifier.


www.amphenolrf.com/media/downloads/305/C83-1sp.pdf


73
Frank
W3LPL




----- Original Message -----

From: "Jim Brown" <[hidden email]>
To: [hidden email]
Sent: Tuesday, June 2, 2020 2:59:17 AM
Subject: Re: [Elecraft] NOT the feedline

On 6/1/2020 3:31 PM, Walter Underwood wrote:
> Even with a 1:1 SWR, 1000 W is pretty close to the 500 V peak rating for a UHF connector.

The vast majority of HF stations with big power amps use UHF connectors
throughout, and are without such problems as long as quality connectors
are properly installed. The only problems I've ever had with connectors
were the result the connectors being junk quality, and it hasn't been
voltage breakdown. Rather I've had them fall apart, and I've had the
center conductor melt.

73, Jim K9YC
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