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From: Rick H Kennerly (no email)
Date: Fri Sep 26 2003 - 11:30:43 EDT
:.The fact is that the current GPS system is owned by the US Department of
.:.Defense. I could imagine in today's world that circumstances
.:.could occur in
.:.which the DOD would temporarily deny GPS signals to civilian receivers.
.:.Sure, there would be a lot of outraged people...but it could happen.
.:.
.:.There's nothing wrong with redundancy when planning. I'll be
.:.the first to
.:.acknowledge that many cruisers today satisfy redundancy exactly
.:.as you will
.:.- by carrying multiple GPS units.
Actually, a large enough solar flare could shut down or interrupt GPS
communications. Flares are a worry in the satellite telecommunications
industry and have shut down satellites on a number of occasions. The GPS
signal is an amazingly puny signal, much more susceptible to a solar flare
than most communications satellites.
For the record, I have one wired in GPS,. one battery powered GPS and my
third GPS is a Gray Plastic Sextant.
Rick NH2F
Westsail 32 Xapic
Cabo San Juan, Puerto Rico
www.mouseherder.com/xapic/sleep.html
www.westsail.org
Sail like a Kiwi
Anchor like a Canadian
Live like a Texan
.
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