I am receiving GPS data collected with a Trimble TSC1 receiver which has been translated to Mapinfo. There are questions regarding the adjustment to NAD83. Here's what I was told is happening. The Trimble data is downloaded to the associated Pathfinder software. >From Pathfinder it is exported to a .mif file with an option to make it NAD83. The .mif is then imported to Mapinfo. Checking the coordinate system through the use of the Map-Options-Projection dialog it is reported the data is simple latitude-longitude. To ensure it is truly NAD83 the map is saved with the NAD83 option then re-opened. The question is this: shouldn't MI report back that the imported .mif data is already adjusted to NAD83? If it is, but not reported that way, then by saving it to NAD83 is there the possibility of cumulative errors? Dennis Hill NOAA
begin:vcard n:Hill;Dennis tel;fax:(206) 526-4514 tel;work:(206) 526-6853 x-mozilla-html:FALSE org:NOAA;Pacific Hydrographic Branch adr:;;7600 Sandpoint Way Ne $ Seattle $ WA;;WA;98115-6349;USA version:2.1 email;internet:[EMAIL PROTECTED] title:Supervisory Cartographer fn:Dennis Hill end:vcard
