It is now possible to build or buy a precision 10~MHz clock source by using
either rubidium frequency standard or GPS disciplined OCXO. But such devices
normally have only single 50~Ohm output which makes it impossible to clock
multiple measurement appliances. The solution to this problem is to use
so-called distribution amplifier, which provides 3 or more galvanically isolated
outputs. Such devices are available on surplus market, but also can be very
easily built at home.
The circuit described below was constructed circa'2010 and has been proven to be stable and reliable.
