Rebuilding a 1995 GPS Time Server so I don't get Telstra'd
A hobbyist has restored a 1995 GPS time server by integrating a Raspberry Pi 5 and a GNSS HAT to create a stratum 1 NTP time server. The project aims to provide accurate timing services for network infrastructure while repurposing legacy hardware.
Why it matters
Maintaining accurate time synchronization is critical for network stability, and this project demonstrates how modern hardware can extend the life of legacy industrial equipment.
In June I purchased this TrueTime XL-AK time server , so I could learn more of the history of GPS-based time.
I received it on June 22, and just 16 days later a similar GPS time server took down Australia's cell service for 12 hours ! I made a short video about it but put off digging into the TrueTime... until now.
Over the past couple weeks, I've 'restomodded' this device with a Raspberry Pi, to build a stratum 1 NTP Time server, which I'd like to eventually add to the NTP Pool . I found a way to drop in a Pi 5 and GNSS HAT, display the time and GPS status on the built-in 16x2 LCD, show the status on the bicolor LED, and make this box useful again.
I lay out more of the hardware details in today's YouTube video:
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