Mapping With GPS2 & Win95
Submitted: Thursday, Jan 31, 2002 at 01:00
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Gordon
I was wondering if the GEODATA RASTER 250K along with the OZI EXPLORER Software would be compatible with a GARMON GPS2 and Windows 95.I would like to be able to download tracks, waypoints, etc. from the GPS to the maps. Any help would be appreciated. Ta
Gordon.
Reply By: Theo - Monday, Feb 11, 2002 at 01:00
Monday, Feb 11, 2002 at 01:00
no problems there, ALL my maps use WGS84, and all the maps I have to recalibrate I do so under WGS84. I know some of you may use UTM and Aus grids, however WGS84 is the preffered
grid, even in OZ. Easier to stick to a standard than muck around with conversions.
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Follow Up By: Greg Harewood - Sunday, Mar 03, 2002 at 01:00
Sunday, Mar 03, 2002 at 01:00
Theo - WGS84 is not a
grid system but a datum. A lot of maps use UTM (a grid/coordinate system) and WGS84 (a datum). In the last two years GDA94 has been introduce and is now the 'preferred' datum (almost identical to WGS84 - but it is different). Most of the old maps I come across use datum’s such as AGD66 or ADG84 (these are not Aus grids as you mentioned but datum’s)- Aus maps generally using UTM or Transverse mercator projection based grids. Datum conversions are not a problem using modern GPS's and programs such as OziExplorer. You simply must be aware of what your GPS is set to, what your datum the map is your using and what you mapping program is currently set on. It can be confusing. Cheers Greg
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