NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Lightning strike (was Re: CELNAV .pdf file)
From: Brooke Clarke
Date: 2003 Dec 29, 14:23 -0800
From: Brooke Clarke
Date: 2003 Dec 29, 14:23 -0800
Hi Frank:
Equipment that's connected to a power source, either the AC mains or a DC supply and an antenna is very susceptible to EMP destruction.
To prevent EMP all you need to do is disconnect all external wiring connections, like power, antenna, computer cables, etc. and then store the equipment in a conducting, Faraday cage (not antistatic) like Aluminum foil.
Have Fun,
Brooke Clarke, N6GCE
http://www.PRC68.com
Frank Reed wrote:
Equipment that's connected to a power source, either the AC mains or a DC supply and an antenna is very susceptible to EMP destruction.
To prevent EMP all you need to do is disconnect all external wiring connections, like power, antenna, computer cables, etc. and then store the equipment in a conducting, Faraday cage (not antistatic) like Aluminum foil.
Have Fun,
Brooke Clarke, N6GCE
http://www.PRC68.com
Frank Reed wrote:
Fred Hebard wrote:
"Electromagnetic shock can still knock out most electronic devices, as I
understand it. Celestial is a good backup."
Maybe someone on this list will know the answer to a question that has come up occasionally. Is there a "lightning-proof safe"? If you're sailing across the Atlantic, and your boat is struck by lightning, you may lose all your electronics. Can you keep a spare handheld GPS in an insulated metal case? Do they market such things? More generally, what's a safer navigation backup: a sextant, almanac, and set of sight reduction tables, or two or three (appropriately secured) spare GPS receivers?
Frank E. Reed
[X] Mystic, Connecticut
[ ] Chicago, Illinois
