Webinar instructions will be emailed before the date of the webinar.

Please log into the webinar 15 – 30 minutes before the start time.

Tuesday, June 18, 2024
9:00 am – 4:00 pm CDT


Presented by: Dave Doyle and Brian S. Fisher, PLS

History of Space-Based Positioning

  •  General design of GNSS constellations
  •  Fundamental geodetic surfaces, contemporary and historic
    • U.S. datums (ellipsoid, geoid, horizontal and vertical datums, State Plane Coordinates)
  •  Outline of contemporary GNSS equipment
  •  Practical GNSS positioning procedures (static, rapid static, RTK, RTN)

GPS and GNSS Surveying Processes and Best Practices Including National Geodetic Survey Guidelines for Accurate GNSS Derived Heights (>.05m/.2 ft)

• Online GNSS services (OPUS, AUSPOS etc.)
• Future of GNSS and geodetic systems – GPS III, new horizontal, vertical, and tidal datum changes, significant new State Plane Coordinates planned for U.S. in 2025


Webinar Instructions

All attendees must log-on through their own email – attendees may not watch together if they wish to earn continuing education credit. HalfMoon Education Inc. must be able to prove attendance if either the attendee or HalfMoon Education Inc. is audited.

Certificates of completion can be downloaded in PDF form upon passing a short quiz. A link to the quiz will be sent to each qualifying attendee immediately after the webinar. The certificate can be downloaded from the Results page of the quiz upon scoring 80% or higher.

Webinars are presented via GoToWebinar, an easy-to-use application that can be run on most systems and tablets. Instructions and login information will be provided in an email sent close to the date of the webinar. It is highly recommended that you download, install and test the application before the webinar begins by clicking on the link in the email.

GoToWebinar App requirements:
Windows 7 – 10 or Mac OSX Mavericks (10.9) – macOS Catalina (10.15)

Web Browser:
The two most recent version of the following browsers:
Google Chrome, Mozilla Firefox, Apple Safari, Microsoft Edge
Internet Explorer v11 (or later) with Flash enabled.

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6.0 PDHs*

Land Surveyors
6.0 PDHs*

*not approved in NY

Continuing Education Credit Information

This webinar is open to the public and is designed to qualify for 6.0 PDHs for professional engineers and land surveyors in most states. *This course is not approved in New York; please refer to specific state rules to determine eligibility.

HalfMoon Education is an approved continuing education sponsor for engineers in Florida (Provider License No: CEA362), Indiana (License No. CE21700059), Maryland, New Jersey (Approval No. 24GP00000700) and North Carolina (S-0130).

HalfMoon Education is an approved continuing education sponsor for land surveyors licensed in Indiana (License No. CE10600325), Maryland, and North Carolina (S-0130).

This webinar has been registered with the Florida Board of Professional Surveyors and Mappers for 6.0 PDHs. This webinar has been approved by the Missouri Board of APEPLSPLA for 6.0 PDUs for land surveyors.

Attendance will be monitored, and attendance certificates will be available after the webinar for those who attend the entire course and score a minimum 80% on the quiz that follows the course (multiple attempts allowed).

On-Demand Credits

The preceding credit information only applies to the live presentation. This course in an on-demand format is not pre-approved by any licensing boards and may not qualify for the same credits; please consult your licensing board(s) to ensure that a structured, asynchronous learning format is appropriate.


David R. Doyle, PLS

Base 9 Geodetic Consulting Services, in Silver Spring, MD

Mr. Doyle has been involved in geodetic surveying since 1967. He joined the National Geodetic Survey in 1972 and functioned in numerous positions dealing with national adjustments, datum transformation and outreach to the surveying and geospatial community. Mr. Doyle held the position of chief geodetic surveyor for 12 years prior to his retirement in 2013. He now owns Base 9 Geodetic Services which provides consultation to public and private agencies and companies as well as teaching seminars on the fundamentals of geodesy and the National Spatial Reference System. Mr. Doyle is a past president of the American Association for Geodetic Surveying, and he is an active member of the DC, Maryland and Virginia professional surveyors’ associations. He has published more than 30 technical articles on geodesy and was honored as the recipient of the AAGS 2018 Joseph Dracup Lifetime Achievement award in addition to numerous other service awards from state and national surveying associations.

Brian S. Fisher, PLS

Registered Professional Land Surveyor in Arizona

Mr. Fisher is a graduate of Arizona’s Phoenix College with an AAS in Land Surveying. His surveying and construction career began in 1989 with the Naval Mobile Construction Battalion “Seabees”. Mr. Fisher’s current position is with the Central Arizona Water Conservation District as a geodetic surveyor. During his career, he has been the president of a private survey/engineering firm, adjunct faculty at Arizona’s Phoenix College, and he has held numerous project management positions in both the private and public sectors. He is an active member in several associations including, Arizona Professional Land Surveyors (APLS), Arizona Geographic Information Council (AGIC), National Society of Professional Surveyor (NSPS), and the American Association for Geodetic Surveying (AAGS). Mr. Fisher has been the National Geodetic Survey State Geodetic Coordinator for Arizona since 2017.

USB MP4/PDF Price: $349.00

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