Reply To: 10MHz reference source Forums › General Discussions › 10MHz reference source › Reply To: 10MHz reference source TishersParticipant Tishers December 12, 2015 at 8:04 pm I have a Rb standard that I use for other pieces of test equipment. The Efratom ones are pretty good. It was an ebay purchase a few years ago, affordable enough that I bought a spare a few months later.
