[Elecraft] KX3 and SWR

[David Woolley]

It's not actually SWR that kills PAs, but rather the resulting 
over-voltage or over-current.  With an open circuit load, the risk would 
be mainly over-voltage, but whilst that would be a problem with a class 
C PA, I'm not so sure that there is a big risk from class AB, push-pull, 
ones.

A PA might survive a very high SWR for some loads, but be very fussy for 
other ones.

-- 
David Woolley

On 16/03/2023 15:58, Ingo Meyer DK3RED wrote:
> The KX3 should tolerate an SWR of 1.6:1. I have already unintentionally 
> transmitted with my KX3 (5W CW) without antenna and the KX3 is still in 
> good health. The manual says at page 6: "The KX3 reduces power if SWR is 
> high."
>