cRb Clock - Portable cold Rubidium microwave atomic clock

Main features

  • Excellent short term stability 8 x 10-13/√τ
  • Excellent long term stability 1 x 10-15
  • No long term frequency drift
  • Clock output at 100 MHz, 10 MHz and 5 MHz
  • 1 PPS output with synchronization
  • Ethernet monitor port
  • Small and portable
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The cRb-Clock is the world’s first commercially available portable cold Rubidium microwave atomic clock. The clock is designed for high frequency stability in the short term of 8×10-13 /√τ and for excellent long term frequency stability of 3 x 10-15 at one day and less than 1 x 10-15 at 10 days.

With this level of performance the cRb-Clock can be used as a substitute for Hydrogen masers. The cRb-Clock, does not require calibration since there is no long term frequency drift and has an accuracy of a few parts in 10-15.

cRb-clock Portable cold Rubidium microwave atomic clock