GeoSpatial Tech FAQs

GPS

How can I get better GPS accuracy?

Garmin handheld units usually get 5-15 meter accuracy. If you have WAAS reception and a WAAS-enabled GPS unit, you can usually get 2-5 meter accuracy.

Trimble units usually get around 1 meter accuracy using WAAS reception. You can also differentially correct GPS data gathered from a Trimble using Differential GPS (DGPS).

What is DGPS?

DGPS stands for Differential Global Positing Systems. More later...

Can I differentially post-process my GPS data collected using my Garmin?

No. Garmin does not collect the background satellite data needed to perform differential post-processing. (Source: Garmin.com).

What is WAAS?

WAAS stands for Wide Area Augmentation System. (Source: Garmin.com)

GIS

Data Conversion

Remote Sensing