[FAQ] What is the difference in accuracy between a Rubidium atomic clock and a dCS Master Clock?

Rubidium Clocks are typically accurate to 0.1 parts per billion in the medium term (about 1000 times more accurate than a dCS Master Clock) but they generate some short-term jitter due to the way they operate. Our opinion is that stability (i.e. low jitter) is much more important than extreme accuracy, so we have steered our Master Clock development in that direction.