I use the Trimble GeoExplorer 6000 series, as well as previous models, and am very happy with it's performance. With the addition of GLONASS, acquiring high accuracy positional data is fast and seamless. I use TerraSync to download data into shapefiles. Setting up data dictionaries takes a bit of time, if you want attribute data, but you can also merge attribute data post-processing. Howver, I find it very useful to enter data into the Trimble in the field while more-or-less simultaneously acquiring positional data. The software is expensive, however, there is no need to pay for access to satellites etc.
Another option is the TopCon GRS1, which a colleague uses, as it has better elevational precision. The workflows are similar, but I am less familiar with this manufacturers devices. A big drawback is the need to pay for network access in some places, as well as the need to pay for wireless modem access. -----Original Message----- From: Ecological Society of America: grants, jobs, news [mailto:ECOLOG-L@LISTSERV.UMD.EDU] On Behalf Of Daniel Weller Sent: Tuesday, May 12, 2015 9:06 AM To: ECOLOG-L@LISTSERV.UMD.EDU Subject: [ECOLOG-L] GPS Units with Sub-meter Accuracy I am a graduate student at Cornell University. I am writing because I am in the process of buying a GPS unit for my lab that has real-time sub- meter accuracy, and can easily interface with ArcGIS. I was wondering if anyone on the ECOLOG listserv had a unit they would recommend. I have looked online and it seems like the Trimble GeoExplorer Series is the frotrunner. However, I wanted to get input from people who regularly do fieldwork. I appreciate any insights and advice you can give. Sincerely and Thanks, Dan Weller
