Dan Hagen wrote: <snip> <<< The standard eTrex does not have differential (DGPS) capability built in. Newer Garmin receivers (including the 76) can provide differentially corrected (DGPS) fixes without the use of a separate DGPS receiver/antenna. This improves the accuracy of the fix, and more importantly the accuracy of the compass function and speed readout. Even when zoomed into the "20-foot" setting on my newest receiver (where each pixel is less than one foot), I see no significant drift when standing still. DGPS really works! I do not see why anyone would buy a handheld receiver without built in differential capability. >>> As far as I understand, DGPS is a way of correcting the Selective Availability, the deliberate inaccuracy that was put in the data from the satellites. Since Selective Availability is OFF since May last year, DGPS is not needed anymore. My Etrex does not show any drift while standing still. I agree with most of the other disadvantages that Dan Hagen pointed out for the Garmin Etrex, but I got one thing to add: Although the Etrex shows a minimun of data on each display, at least that data is shown clearly and as large as possible. Inside a damp drybag under your bungies you have a chance to be able to read the screen, which was almost impossible with my previous GPS, a 12XL. Niels. *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Tue May 08 2001 - 00:51:04 PDT
This archive was generated by hypermail 2.4.0 : Thu Aug 21 2025 - 16:30:42 PDT