GPSD GitHub: A use cheap usb dongle for getting accurate time without internet and NTP
You can use the cheapest USB GPS dongle with GPSD for accurate time in ham radio settings, especially when offline from the internet and NTP servers. GPS dongles receive precise time signals from GPS satellites, providing UTC time which is crucial for synchronized operations in ham radio.
GPSD software then interprets these signals and makes the accurate time available to your computer or device, ensuring reliable timing for radio communications without relying on internet-based services. This setup is cost-effective and robust for ensuring precise timing in remote or offline ham radio environments.
This is also a fun way to learn more about gps.