[Elecraft] KPA-1500 issue (power surge?)

[Bill Frantz]

There was a post to this maillist over a year ago which said 
that the most frequent casualty of lightning strikes in the K3S 
was the USB chip and associated circuitry. The recommended "fix" 
was to unplug the USB cable from the back of the radio when it 
was not in use.

Applying this fix to a remote station is an interesting 
exersize. I think a 4 poll relay that grounds the connections to 
the radio while letting the bus float might be the best 
solution. It could be activated by the 12V output from the radio.

73 Bill AE6JV

On 7/10/21 at 6:55 AM, jimlcary at gmail.com (Jim Cary) wrote:

>I posted a note yesterday that I took a power surge which 
>knocked out my PC and couldn’t connect to my K3S.  Thanks to 
>all the input for you guys, it would appear that the IO board 
>on the K3S got fried.  Still to be confirmed, but strongly 
>suspect true.

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