Before undertaking any on-demand effort, you should review the rules of your licensing/certifying entity. It’s your responsibility to determine whether or not this on-demand course meets your continuing education requirements.
You must take and pass a quiz in order to receive credit. You can take the quiz as many times as needed and there is no time limit on the quiz. Once the quiz is completed, you will be asked to download your certificate.
Videos that qualify for AIA, LACES, ASLA, or CLARB credit will require an extra week for processing.
Available approximately 1 week after the date of the live event or the date of your order, whichever is later.
To track your purchase you will need to create an account on the website using the email address used for your registration.
The video will have occasional question prompts that will not allow the video to progress unless they are answered. You will not be able to skip forward while watching the video.
If you attempt to resume watching the video on a separate device, your progress will not be saved.
Click the link which appears at the end of the video to be taken to the course quiz.
HalfMoon will mail these materials via USPS. Please allow 2 weeks from the date of purchase to receive your product. If the live seminar is in the future, please allow 5 weeks from the date of the live seminar.
The link to the quiz will be available in a PDF in your USB drive marked QUIZ.
HalfMoon will contact you and issue a full refund if the product you ordered is not available. However, refunds will not be issued if completion certificates are requested.
Please contact HalfMoon Education if you have any questions during the process of taking this course. (715) 835-5900 or email@example.com
Webinar instructions will be emailed before the date of the webinar.
Please log into the webinar 15 – 30 minutes before start time.
Tuesday, May 16, 2023
8:30 am – 3:20 pm CDT
Presented by Thomas H. Meyer
Accuracy and Precision: Expected Results and Observation-Session Duration
Observation modes (DGPS, Phase Differencing)
- GPS bands
- Timing codes
- Coarse/Acquisition code (C/A code)
- Precise code (P code)
- Navigation message, timing codes, code phase
- Carrier phase
- Inter-ambiguity problem: autonomous solutions, floating solutions, fixed solutions
- Precise point positioning
- Code- and Phase-Differencing
- Static Positioning
- Tripod, UConn HARN example
- Range pole
- Real-time positioning
- Real-time kinetic (RTK), Real-time network (RTN)
- RTN example: UConn class survey exercise
- Statistical independence
- Autocorrelation and sampling interval
- NGS example for heighting
- NGS occupation-duration CORS study
- Range-pole centering error (Franklin and Meyer, SaLIS, 2016)
- Satellite constellation geometry
- Dilutions of Precision (DoPs) (Meyer and Elaksher, Geomatics, 2021)
- Why heighting is never as accurate as horizontal
- Ionosphere, troposphere, signal-to-noise ratio
- Terms and nomenclature
- GNSSs around the world
- System architecture: Segments
- Space, control, user
Ranging and Orbits
- The range equation: multilateration
- Orbits: the broadcast ephemeris
- The coordinate hierarchy
- Antenna phase-center calibration: absolute vs. relative
- Reference systems, reference frames, and datums
- WGS84 vs NAD83
- Time-dependent positioning, and stable reference frames
- Geoid models and reference-frame choice
- An eye toward the future
- North American Terrestrial Reference Frame vs WGS84 vs ITRF
Each webinar session earns continuing education credit and can be registered for individually. 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)
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
Internet connection: Minimum of 1Mbps Hardware: 2GB RAM or more
For more information, visit the Support section at www.gotowebinar.com
6.0 PDHs (in Most States)
6.0 PDHs (in Most States)
(no credit for NY engineers or land surveyors)
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, excluding New York. Please refer to specific state rules to determine eligibility.
HalfMoon Education is an approved continuing education sponsor for engineers in Florida (Provider No. 0004647), 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. CE21700059), Maryland, and North Carolina (S-0130). This course has been registered with the Florida Department of Agriculture and Consumer Services (#10185).
HalfMoon Education has not applied to any state land surveyor boards not listed above that require pre-approval. Please consult the rules of your licensing board to determine eligibility.
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).
The preceding credit information only applies to the live presentation. This course in an on-demand format may not be eligible for the same credits as the live presentation; please consult your licensing board(s) to ensure that a structured, asynchronous learning format is appropriate.
Dr. Thomas H. Meyer Ph.D.
Tom Meyer was awarded a Ph.D. from Texas A&M University in College Station, Texas in 1998, where he was a research associate in the Mapping Sciences Laboratory. He now is a Professor of Geodesy in the Department of Natural Resources and the Environment at the University of Connecticut, where he teaches courses in geomatics, GNSS and plane surveying, geodesy, and geospatial analysis in Python. Dr. Meyer is a member of ASCE and the Connecticut Association of Land Surveyors. He is also a past president of the New England Section of the ACSM and a Fellow and the 2016/2019 president of the American Association for Geodetic Surveying. Dr. Meyer has published an undergraduate textbook on geodesy, numerous peer-reviewed journal articles, and is on the editorial boards of the Journal of Surveying Engineering (JSE) and Surveying and Land Information Science (SaLIS). He is a regular presenter at national meetings, giving workshops and seminars on numerous topics in geodesy, GNSS, and surveying. His most recent research projects include new formulations of low-distortion projections, and developing spatial statistical animal-movement models for mountain lions, bobcats, and salmon.