Nobody guarentees your GPS to be accurate to within 30 feet and neither does Google maps. My GPS usually claims around 10-12 feet accuracy provided it can see around 10 satellites. Leave your GPS on laying in your yard for a couple of hours plotting it's course and see how far it wanders.
On 25-Jul-10 22:55, Lee Ernstrom wrote: > Hi Guys, > > I have been playing around with my Garman NUVI GPS and comparing the > readings to Google Maps. This is something you call try at home. My > Garman says that the base of my HF tower is at 41.07430 N 112.03774 W. > When I punch in those coordinates in to Google Maps in the satelite view > mode the arrow points to a location about 30 feet away near the middle > of the lawn east of my driveway. When I play around with the > coordinates a little through interpolation and punch them in to Google > Maps several times I arrive at what appears to be the true coordinates > of the base of my HF tower at 41.074329 N 112.037770 W. I suppose that > is the significant difference that sixth decimal place makes. Check > both of these coordinates on Google Maps to see what I mean. Any > comments? > > WA7HQD > Lee Ernstrom > Syracuse, Utah DN31xb > _______________________________________________ > Sent via amsat...@amsat.org. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.851 / Virus Database: 271.1.1/3026 - Release Date: 07/24/10 > 18:36:00 > -- Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937 825 5032 Amateur Radio G8IFF W8IFF (was KC8NHF), e-mail ni...@ngunn.net www http://www.ngunn.net Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP Club International #385, Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC, GCARES, XWARN. _______________________________________________ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
