[Elecraft] KPA500 faulting on high VSWR on power rise

[Rick Bates (WA6NHC)]

I’ve always presumed that the ratings were based on 1:1 SWR as there is no reasonable way to define it otherwise.   Actual ratings at other loads can be inferred on that basis. 

An end fed dipole is MUCH harder to tame than a dipole (or fan dipole) and inherently challenging to keep the RF away from places like the shack. 

Rick WA6NHC

Smell Czech correction happen

> On Feb 24, 2018, at 11:42 AM, Erik Basilier <ebasilier at cox.net> wrote:
> 
> So, the manufacturer of the protective device should probably not just tell you a wattage rating, but also the acceptable swr level for that power.

> Or abandon the ladder+balun+coax approach and go to an end-fed dipole with transformer that can provide low impedance coax feed on all bands.
> 
> 73,
> Erik