Using UNAVCO Real-Time CORS Data, a No-Cost Positioning Resource

UNAVCO is a non-profit consortium of Universities that coordinates the collection and dissemination of geographic information. One of the data products that they provide for research and commercial use is a network of 375 real-time continuously operating reference stations (Real-Time CORS) spread throughout North America.

The 375 real-time CORS stations are a subset of the 1,324 PBO references stations and cover the California, Oregon and Washington fairly well:

Real-Time PBO Sites

Access to streams is available via the internet using standard NTRIP protocol at no charge by simply requesting an account via email from

Once you have User Name and a Password, you will probably be at a loss for how to use this resource in your everyday survey activities.

This application note might help you place the data into a reference frame that you can use.

Click [ UNAVCO_RealTimeData ] to continue reading…

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