[Elecraft] ERR IO3 more!!

[David Cutter]

So, complete and large-gap galvanic isolation is all that could save your 
hardware, unless you know in time to remove the RS232 plug all together. 
Fibre optic coupling sounds favourite, not even a screened cable to conduct 
the energy.

David
G3UNA

----- Original Message ----- 
From: "R. Kevin Stover" <rkstover at mchsi.com>
To: <elecraft at mailman.qth.net>
Sent: Sunday, May 01, 2011 12:48 PM
Subject: Re: [Elecraft] ERR IO3 more!!


> Probably not.
>
> As long as there's a conductor of any sort the strike energy will get
> passed along somewhere. All you'll be doing is sacrificing a USB-serial
> adapter and not saving anything.
>
> At my former QTH, out in the country, I was limited to dial-up Internet
> which meant modems. I lost at least 3 modems to nearby lightning
> strikes, one of which took the computer motherboard, all on-board Ram,
> the video card, and one of two hard drives with it. All of that was
> destroyed by the simple phone line connection. Nothing else in the
> house was destroyed so the surge didn't come in on the power connection.
>
> The lightning strike that did this mayhem was 200 yards away and blew
> up the maple tree it hit. It also induced a large surge in the phone
> lines hanging from the pole next to it.
>
>
> On Sun, 01 May 2011 13:19:30 +0200
> Pierfrancesco Caci <pf at tippete.net> wrote:
>
>>
>> alternatively, would the use of a usb->232 adapter instead of a direct
>> rs232 connection help prevent this ? I wouldn't mind zapping a 15 EUR
>> usb dongle.
>>
>> Pf
>
>>
>
>
>
> -- 
> R. Kevin Stover
> AC0H
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