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" <[email protected]> To: <[email protected]> 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 <[email protected]> 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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
