I designed an Atomic clock arduino shield! BOM cost is a cool $9000 : r/electronics
CANADUINO 60kHz WWVB Atomic Clock Receiver - Compatible with MSF and JJY60: Amazon.com: Industrial & Scientific
Alano ALANO WWVB 60kHz NIST Radio Controlled Clock Module, 30dB High Gain Atomic Clock Receiver Modules with LCD Display, 100mm
10mhz Atomic Clock Rubidium Clock Fe5680 Constant Temperature Crystal Oscillator Frequency Conversion Board Pll Conversion Board - Instrument Parts & Accessories - AliExpress
How to Use a Real-time Clock Module with the Arduino - Circuit Basics
Atomic Clock - SPX-14830 - SparkFun Electronics
How MSF Atomic clock receiver modules work - free for colleges, University and students | Galleon Systems Ltd
Build a DIY Clock that Uses Ultra-Precise Atomic Timekeeping
Chip Scale Atomic Clock (CSAC) SA.45s - Chronos Technology
Atomic Clock - SPX-14830 - SparkFun Electronics
E10-LN Low Noise Rubidium Oscillator Module
CANADUINO 60kHz WWVB Atomic Clock Receiver - Compatible with MSF and JJY60: Amazon.com: Industrial & Scientific
Embedded Atomic Oscillators | Microchip Technology
The PC-board atomic clock, Part 1: Primary and secondary standards
ESA - Columbus module with ACES
$24.99 - WWVB NIST Radio Time Receiver Kit (1.1V to 3.3V) - Tinkersphere
Atomic Pinball Clock | Hackaday
Facebook shares its Time Card atomic clock tech to speed internet services - CNET
Chip-scale atomic clock approaches performance of modules - EE Times
