Good Coordination Begins with

Good Coordinates

With the advent of Global Navigation Satellite Systems, highly precise and accurate positioning is now available to a broad range of users for many geospatial applications.  Surveyors and engineers have understood the need for accurate positions and elevations in their own professions, but now have tools that allow them to determine positions more accurately and easily than ever before.  New users have discovered the tools and capability, and want to take advantage of them without having the background or training to understand how to use them. All users that are determining accurate positions and elevations, or are trying to fit positions to historic reference frames and charts, can find the task challenging.


Whether you are performing surveys, working with historic reference frames or Geographic Information Systems, or doing mapping and charting, Base 9 Geodetic Consulting Services is a service-disabled veteran-owned small business available to answer your questions or provide training. Dave Doyle has been involved in geodetic surveying for nearly 50 years, and is highly respected in the field.  Contact him today for your training or consultation needs.


What's New:
Maryland Society of Surveyors presents Dave the Russell E. Lowman Memorial Award, in recognition of his dedication to Land Surveying Education - October, 2021
Geography Without Geodesy is a Felony


Base 9 Geodetic Consulting Services provides a range of services including training, datum transformations, research, and consultation on issues related to theoretical and practical geodesy.



Dave Doyle has published more than 30 articles in professional publications. These publications are available online.  In addition, much of the training material has been made available.



call or email Dave Doyle at:

(301) 704-9578


Upcoming Events


See when and where Dave will be giving seminars and attending meetings and conferences.