Paul- I copy that! -Don From: [email protected] To: [email protected] Subject: [ENTS] Re: GPS Date: Thu, 5 Mar 2009 01:07:40 -0600
Don, Garmin and Magellan consumer GPS units default to WGS84. But many users, me included, change it right away to match the maps that we are working with. I've bounced between NAD83 and NAD27 frequently. I'm sure that some others have changed their datums, too, although most don't even know what they are and leave it alone. PJ ----- Original Message ----- From: DON BERTOLETTE To: [email protected] Sent: Wednesday, March 04, 2009 11:22 PM Subject: [ENTS] Re: GPS Will- Well, that's sort of true...there are quite a few places that still have NAD 27, NAD 83 topos and match their GIS's to that NAD. Are you sure that all civilian GPS's are by default assigned the wgs84 datum? If you are correct, then I stand corrected and shouldn't have been a worrywort about not everybody being on the same datum. -Don > Date: Wed, 4 Mar 2009 20:25:43 -0800 > Subject: [ENTS] Re: GPS > From: [email protected] > To: [email protected] > > > The standard datum on GPS units is wgs84. Datum comes into play with > maps which are referenced in a variety of datums, in the us, NAD 27 > and NAD 83. As the GPS was originally developed by the military, they > use wgs84 which is a standard worldwide and is for all practical > purposes identical to the NAD84 (north america datum). > > On Mar 4, 10:01 pm, Larry <[email protected]> wrote: > > Ed, Thanks for the link. Larry > </HTML<BR _________________________________________________________________ Express your personality in color! Preview and select themes for Hotmail®. http://www.windowslive-hotmail.com/LearnMore/personalize.aspx?ocid=TXT_MSGTX_WL_HM_express_032009#colortheme --~--~---------~--~----~------------~-------~--~----~ Eastern Native Tree Society http://www.nativetreesociety.org Send email to [email protected] Visit this group at http://groups.google.com/group/entstrees?hl=en -~----------~----~----~----~------~----~------~--~---
