RLA GeoSystems
GPS and GIS Solutions

GPS Differential Correction Files

The "Mother" of all community base stations. Located in Sunnyvale, CA. An FTP download. If this isn't good stuff, we are all in trouble.

Download Trimble Community Base Station files from MSU Campus at East Lansing, Michigan

U.S. Network of over 80 precision reference stations for downloading. Map shows locations with button reference to specific stations.

Based in Onalaska, Wisconsin, near the Minnesota border, this 12-channel Trimble CBS operates 7 days a week.

Located in Kingston, Rhode Island, operating a Trimble CBS with 12 channels.

Trimble Community Base Station files for download from Montana DOT in Helena

TXDOT has 4000SSE base stations in 10 Texas cities. Download via FTP.

Located in Idaho Falls, Idaho, CBS files are accessed via an FTP server. Base station is set to sync mode.

Obtain data from 29 SCIGN reference stations

Trimble Community Base Station located in Duluth,
Minnesota. Has unique form to request base station files. Nicely done.

BARD is a network of about 20 continuously operating GPS receivers in northern California. Data is available in RINEX format.

Trimble Base Station Files in SFF Format, located in Memphis, Tennessee. Base is 6-Channel.

Trimble Community Base Station files from Northern Arizona University in Flagstaff, nice coverage map. A hidden gem University.

Trimble Community Base Station at UA in Fayetteville, Arkansas. Try differential correction at a distance.

Trimble Community Base Station files from UNM campus at Albuquerque, New Mexico

One-stop access to Forest Service Community Base Stations. Portland, OR,Missoula, MT, Kettle Falls, WA and Burns, OR.

Courtesy the U.S. Naval Warfare Center, Weapons Division, Chinalake, CA. A Trimble CBS produces hourly SSF files. CBS is 12 channels.

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Last modified on Tuesday, February 25, 1997