[Elecraft] <elecraft at mailman.qth.net> Subject: Re: [K3] KIO3 failure mode

[David Gilbert]

Pretty sure I said I had everything disconnected from the K3 except for 
the RS-232 link to the laptop.   What part of that do you want to contest?

And now I disconnect that as well.

Dave   AB7E


On 8/24/2022 12:10 PM, Bill Mader wrote:
> Having the laptop charger connected to AC and the KIO3 connected to the
> laptop is NOT having everything disconnected, Dave.  This has been
> discussed here numerous times and Elecraft warns us each spring to reduce
> their revenue while saving us from frustration.
>
> A recent article in QEX talked about avoiding cable loops (not antennas) in
> the shack during lightning storms.  The nearby strikes and associated EMP
> can generate sufficient Voltage to damage connected circuits.
>
> My rule is to unplug ALL devices associated with my station from commercial
> AC power and disconnect ALL antennas from any shack connections.  Soon,
> I'll have an entry panel where I can bond the coax/control cables to the
> external station ground too.
>
> I have a spare radio or two just in case the precautions I take don't
> work.  I also have an AC-powered lightning detector to warn me of
> approaching lightning (and my wife who just texted me 22 miles out").  I
> unplug and disconnect within 10 miles, if not sooner, even during a
> contest.  I have not lost a KIO3 in either K3 or had a similar problem with
> my other rigs.
>
> 73, Bill Mader, K8TE
> ARRL New Mexico Section Manager
> *ARRL - The national association for Amateur Radio**™*
> Secretary/Treasurer and Past President, Albuquerque DX Association
> W6H NM Coordinator, Route 66 On-the-Air 10-18 Sep 2022
> New Mexico QSO Party 8 Apr 2023
> Duke City Hamfest Chairman www.dukecityhamfest.org 15-17 Sep 2023
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