By the end of the video, the GPS oscillator never totally locked with the rubidium standard, although they were close. However, there is no way to know which of them was further off the actual 10 ...

[Gerry] decided he would fix that, turning his rubidium standard into a proper piece of bench equipment, all in a single afternoon. [Gerry]’s first step was finding a proper enclosure for his ...

A SELF-OSCILLATING rubidium vapour magnetometer, in which measurements of the total field magnitude are obtained by counting the frequency of self-oscillation in the radio-frequency range ...