[Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues)

[Adrian]

To remove any doubt, a 1.5kw or close dummy load at the end of the coax 
to replace antenna, would confirm the amp issue.

On 1/6/20 12:27 pm, Peter Dougherty wrote:
> Paul, please re-read what I wrote. The 90W figure is with the amp IN
> STANDBY! I wouldn't dream of putting more than about 35W into the KPA-1500.
> I generally like to run about 1200W on 6m, but even if I turn my K3s drive
> down to 20 Watts, it will STILL hard-fault regularly. NO AMOUNT OF DRIVE
> from the K3s will stop these problems. If the amp is set to deliver power
> it's going to fault on 6m, regardless of what the ATU is set for (bypass or
> inline), and the KPA will miss-read the SWR of the antenna system.
>
> The resistance figure is 50.8 Ohms, and the reactance is -11 according to
> the AA-230. The only difference between "works reliably" and "faults out all
> the time" is one is a resistive-only load, the other has a reactive
> component.
>
>   - pjd
>
> -
>