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Astrolabe (O-2) | by John Sloan
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Astrolabe (O-2)

Astrolabe is a GPS-disciplined home-brew NTP server built using a Raspberry Pi, a Jackson Labs Technologies GPSDO CSAC board with a Microsemi chip-scale cesium atomic reference oscillator, a real-time clock with a battery backup, and an LCD display. Of the ones I have built, this is my favorite, the most expensive, and the most complex hardware-wise. Arvada Colorado USA. Spring 2017.

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Taken on May 17, 2017