Date: Wed, 3 May 2000 14:52:01 -0600 (MDT) From: Nate Williams <nate@yogotech.com> To: Neill Robins <freebsd@nc.rr.com> Cc: Nate Williams <nate@yogotech.com>, chat@FreeBSD.ORG Subject: Re: GPS heads up Message-ID: <200005032052.OAA01634@nomad.yogotech.com> In-Reply-To: <7684.000503@nc.rr.com> References: <200005031952.NAA01317@nomad.yogotech.com> <7684.000503@nc.rr.com>
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> I don't know why they even continued to use SA after they released > Differential GPS, which is good to 5 meters and less. It sort of got > around the signal degredation. But, for the folks who didn't want to > sink $500 into a DGPS unit, this news is great. It is sort of > surprising since it is 6 years earlier than planned. Because in order to use DGPS, you must be near a DGPS transmitter, which for most of the US (anywhere but the two coasts) is not a feasible option. Nate > > Neill > > > Wednesday, May 03, 2000, 3:52:55 PM, you wrote: > > NW> [ Moved to -chat ] > > >> Ok, this has nothing to do with FreeBSD, but I just had to post > >> something since nobody else has. > >> > >> By presidential order, on May 1 the error introduced into the GPS > >> system, called 'SA', was turned off. > > NW> You've *GOT* to be kidding? Honest and truly? (Runs outside with his > NW> GPS). > > >> This means that your GPS receivers are now around 5-10 times more > >> accurate then they were before May 1st. > > NW> On my Garmin 12, I could get accuracy to 53' consistently before, now > NW> it's consistenly at 14'. If I averaged the errors, I got 43', now it > NW> only gets 1' better to 13'. > > NW> Still, it's measurably better than before. > > >> And I have to say, I am totally amazed! My handheld Garmin now > >> tells me that it is accurate to 14 feet, rather then 100 ft. It is > >> so accurate now that I can tell which side of the street I'm on! > > NW> This is good and bad. Now my routes tell me I'm off since I'm on the > NW> other side of the road. *grin* > > >> I am well and truely amazed. It's impressive to see the thing recognize > >> when I take a few steps in one direction or another using a bunch of > >> satellites sitting thousands of miles away in the sky. It's even more > >> impressive to see the government do something right for a change! > > NW> No kidding. Thanks for the announcement Matt, I wouldn't have noticed > NW> this for a while had you not posted this, and then I would have wondered > NW> if my GPS was going bonkers. :) > > > > NW> Nate > > > NW> To Unsubscribe: send mail to majordomo@FreeBSD.org > NW> with "unsubscribe freebsd-chat" in the body of the message > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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