A Low-Cost Time Transfer Receiver for Contributions to Coordinated Universal Time

Area of Science:

• Metrology
• Timekeeping
• Geodesy

Background:

• Accurate Coordinated Universal Time (UTC) is crucial for global navigation and scientific research.
• Existing time transfer methods can be costly and complex, limiting participation.
• National metrology institutes and other timing laboratories are essential for maintaining UTC.

Purpose of the Study:

• To introduce a low-cost, user-friendly time transfer receiver.
• To facilitate data contribution from diverse timing laboratories to the Bureau International des Poids et Mesures (BIPM).
• To enhance the global computation of Coordinated Universal Time (UTC).

Main Methods:

• The receiver compares a local UTC realization with Global Positioning System (GPS) satellite signals.
• Measurement data is stored in a format compliant with international standards.
• Data is transmitted via the internet to the BIPM for UTC computation.

Main Results:

• The developed receiver is both inexpensive and easy to operate.
• It enables recently established laboratories to contribute to UTC with minimal training.
• The system ensures data compatibility for international timekeeping standards.

Conclusions:

• The low-cost receiver significantly lowers the barrier to entry for laboratories participating in UTC.
• It promotes broader and more equitable global contributions to international time standards.
• This innovation supports the accuracy and integrity of Coordinated Universal Time.