HackerTube / Video
Etak Navigator Tour & Demo
EllsworthC
Raw 1991 home footage of a working Etak Navigator, the 1985 in-car navigation system that predated consumer GPS. It shows the system's cassette-based map display and explains its augmented dead reckoning using wheel sensors.
Cited as a rare look at how pre-GPS car navigation worked, especially its dead reckoning with turn-based recalibration.
3 Hacker News mentions · 2018–2024