I modded a 30-year-old GPS Time Server (Telstra should've)
Jeff Geerling
Sep 4, 2026 14:00
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Chapters
Timing is everything.
More about Telstra's GNSS timing-related outage:
- https://hackaday.com/2026/08/27/australias-nationwide-phone-outage-was-an-embarrassing-failure/
- https://www.abc.net.au/news/2026-09-02/telstra-outage-review-findings-known-network-issues-not-priority/107106588
Some of the projects I built, contributed to, or used:
- Jimmy Paputto GNSS HAT: https://github.com/jimmypaputto/gnsshat
- Densitron LCD: https://github.com/geerlingguy/densitron-lcd
- Time-Pi Fan Control: https://github.com/geerlingguy/time-pi/tree/master/fan-control
- Time-Pi Chrony Dashboard: https://github.com/geerlingguy/time-pi/tree/master/chrony-dashboard
- TrueTime Pi Mounting Bracket: https://www.printables.com/model/1832259-truetime-pi-mounting-bracket
- Right-angle HDMI and USB-C Adapter: https://deskpi.com/products/deskpi-kl-p24-raspberry-pi-adapter-board
And here's the EEVBlog forum thread on the TrueTime XL-AK: https://www.eevblog.com/forum/projects/symmetricom-truetime-xl-dc-gpsdo/msg6292664/#msg6292664
A few people asked about the wire wrap tool; it's a WSU-30M and I got it for $30 on Amazon here (affiliate link): https://amzn.to/3SzaRFD
Support me on Patreon: https://www.patreon.com/geerlingguy
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2nd Channel: https://www.youtube.com/@GeerlingEngineering
3rd Channel: https://www.youtube.com/@Level2Jeff
Contents:
Science & Technology
#telstra
#gps
#time
#timing
#gnss
#pnt
#server
#homelab
#restomod
#restoration
#truetime
#symmetricom
#xl-ak
#raspberry pi
#ntp
#network
#protocol
#daytime
#services
#fix
#fixup
#patch
#wire
#wrapping
#retro
#vcfmw
#vcf
#midwest
#antenna
#converter
#down
#3d printing
#3dp
#design
#cad
#expansion
#slot
#protoboard
#prototype
#pot
#potentiometer
#soldering
#solder
#electronics
#header
#densitron
#lcd
#led
#status
#dashboard
#chrony
#monitoring
#ptp
#hardware
#timestamping
#pps
#clock