Spatial - Ed.com

NOAA Datums Videos 2014

Differential correction with NA2011 and the newest epoch of NAD83

See our and Datums Basics and GPS Tutorials for the long-awaited results of months of rigorous testing and peer review

Trimble Positions software has replaced Trimble GPS Analyst in ArcGIS 10.1

ALASKA GPS and GIS users - check out Joel Cusick's Datum and Projections presentation Feb 2013

ArcGIS 10.1 - New and Cool improvements see Presentation from Melita Kennedy, ESRI : Projections and Datums Dec 2012

Home GPS Tools
Hardware: Mapping Grade GPS Recievers PDF Print E-mail

Mapping grade receivers and mobile devices cover a wide range of accuracy and cost.  They are defined by their tight integration of GPS and GIS processes for data collection update. Key characteristics are the ability to -
* Collect distinct point, line and polygon features
* Record attributes or information for each feature
* Enforce data integrity via standardized input methods during data collection/update and
* Export GPS data into standard GIS storage formats for integration with other GIS datasets.

Below is a general overview of the Trimble line of mapping grade receivers with increasing accuracy and cost.

Read more...
 
Software: Data Collection with Trimble TerraSync PDF Print E-mail

Data collection software is used in the field to collect and update data.

Trimble GPScorrect Extension for ArcPad

This data collection software does not require GPScorrect to filter incoming GPS signals while in the field or differentially correct their GPS data upon returning to the office.

Trimble TerraSync and ESRI ArcPad are the 2 most common choices for Trimble devices. Check out this comparison of ESRI ArcPad and Trimble TerraSync packages.

 
Software: Data Collection with ESRI ArcPad PDF Print E-mail

Data collection software is used in the field to collect and update data.

ESRI ArcPad

This ESRI software is tightly integrated with ArcGIS and is the focus of this manual. ArcPad is based on an ArcGIS background. This facilitates data and file management.

Trimble GPScorrect Extension for ArcPad

This optional Trimble software allows mobile users to configure GPS receivers settings on the mobile device and post-process collected data. GPScorrect is used in conjunction with ArcPad.  While ArcPad can be used independently of GPScorrect, those users will not be able filter incoming GPS signals while in the field or differentially correct their GPS data upon returning to the office.

Trimble TerraSync and ESRI ArcPad are the 2 most common choices for Trimble devices. Check out this comparison of ESRI ArcPad and Trimble TerraSync packages.

 
ArcGIS Extension: Trimble GPS Correct PDF Print E-mail

Trimble GPScorrect is an ArcGIS Extension that is installed on a mobile device used for setting the quality of GPS positions accepted for data capture.

While ESRI ArcPAD can be used without this extension, collected GPS data CANNOT be differentially corrected without this extension since GPScorrect collects key satellite mesurement.  This extenion is also necssaery to filter incoming GPS signals by PDOP, SNR or elevation mask.

GPScorrect appears as a menu in ESRI ArcPad.

It is developed by and purchased from Trimble.

 
ArcGIS Extension: Trimble GPS Analyst PDF Print E-mail

GPS data in the geodatabase with Trimble GPS Analyst

The Trimble GPS Analyst extension allows you to
a) store GPS data directly in the geodatabase
b) store estimated accuracy values for GPS positions and features
c) validate features based on specified accuracy requirements and
d) rebuild features as needed.

Please see this article in the GDB Basics for more detail.

 
ArcGIS Extension: ArcPad Data Manager PDF Print E-mail

ESRI ArcPad Data Manager

This ESRI extension is installed on desktop and is used for data preparation.

It appears as a toolbar in ArcMap and provides for the integration of ArcPad data with your geodatabase.

This extension is included with each ArcPad 7.1 installation.