REDWOOD CITY, Calif. – Pendulum Instruments in Redwood City, Calif., is introducing the FTR-210R GNSS-disciplined rubidium frequency and time reference system for use as a stand-alone frequency ...
Normally we think of a pendulum as a weight suspended by a flexible string or cable, so that it may swing back and forth. Another type of pendulum consists of a weight attached by a light (but ...
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