[Elecraft] KPA1500 Faulting for High SWR inappropriately

Lou Laderman lladerman at icloud.com
Mon Dec 19 16:28:06 EST 2022


Check the delay setting on your transmitter. You might have a hot switching issue. I think (but check your manual) that unless you’re using the KPA1500 with a K3 or K4 without the 15-pin Elecraft interface cable, you’ll want at least 10ms of delay to avoid that. I had that issue with a K4 and a PGXL. Default on the K4 is 8ms and the PGXL needed 10ms.

73, Lou W0FK

Lou Laderman
Sent from my mobile device 

On Dec 19, 2022, at 2:59 PM, David F. Reed <w5sv.dave at gmail.com> wrote:

My KPA1500 has started faulting inappropriately for High SWR.

I say inappropriately because all 2 of my SWR meters (K4D, KPA1500, Palstar HF-AUTO) show an SWR of between 1.1:1 and 1.2:1. with just the K$ transmitting and also with the KPA1500 in fine as it faults out.

Any ideas?

-- 
Thanks & 73 de Dave, W5SV

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