What Dave said. Almost identical here.
Now, during t-storms, the K3 is a box sitting on the desk with
_nothing_ repeat _nothing_ connected. If I thought wrapping it with
tinfoil* would help...
cln - Nick
WB5BKL
Lake Buchanan, TX
* One of my neighbors has a plentiful supply.
On 8/24/22 11:49, elecraft-requ...@mailman.qth.net wrote:
Message: 9
Date: Tue, 23 Aug 2022 14:47:24 -0700
From: David Gilbert<ab7echo@za*****.com>
To:
Subject: Re: [Elecraft] [K3] KIO3 failure mode
When my KIO3 got zapped, I had everything disconnected.? Antenna and all
accessories from the K3 ... power supply as well.? The one thing I
didn't have disconnected was the RS-232 link between the laptop and the
KIO3.? Somehow a transient from a nearby lightning strike (not a direct
one to my tower) traveled through the laptop power brick and to an
otherwise completely floating K3.? If I remember correctly, the laptop
power supply was even plugged into a quality surge protected UPS.
It takes very little to zap the KIO3.? I now disconnect EVERYTHING in
the shack during lightning season.
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