Experimental Modern and Quantum Physics for Do-It-Yourself Science Enthusiasts 

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Home Instrumentation Archive for category "Precision Clocks and Timers"
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Tom Van Baak’s Family-Friendly Relativistic Time-Dilation Experiment

I was going through my e-mails for some information on atomic frequency standards, when I came across an e-mail that I had sent to Tom Van Baak in 2007 congratulating him for his family-friendly time dilation experiment.  If you are not familiar with his work,  I heartily recommend that you explore his precision-time-keeping webpage at LeapSecond.com.

 
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d.i.y. GPS-Disciplined 10 MHz Frequency Standard / GPS-Based Universal Time Clock

Last week I posted detailed construction information for my rubidium atomic clock frequency reference.  Besides that unit, I also built a GPS-disciplined 10 MHz oscillator to serve as a secondary frequency reference, as well as a source of GPS NMEA data for my ham shack instruments that can use precise location and real-time-clock data (e.g. for

 
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d.i.y. 10 MHz Atomic Clock Frequency Standard Using Surplus Rubidium Oscillator

Efratom Model M-100 Rubidium Frequency Standard (RFS) oscillators are widely available in the surplus market.  Units on eBay commonly sell in the $150 to $200 range.  Despite their low surplus price, they were originally very expensive components, with superb performance.  The M100 was designed to be used by the military as a master oscillator in high-performance

 
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