Hi guys, I want to find a frequency counter that will read to 1 hz precision up to a minimum of 30 Mhz that I can clock using the output from my Efratom 101 Rb frequency standard. I am quite happy to make one if there is a suitable design out there. Any suggestions? 72/3 de Steve G0XAR -- It is vain to do with more that which can be done with less.