Monday 2nd July 2009, 21:51
The Efratom Model FRS-C Rubidium Standard
The Efratom Model FRS Rubidium Standard is a sub-miniature, atomic resonance-controlled oscillator that provides an extremely stable signal of 2.048 Mhz TTL, % Mhz, or 10 Mhz (TTL or Sinusoidal). These units are now appearing on eBay and other Surplus Sites and are popular time and frequency standards for Amateur Radio use.
The following technical operations and service documentation has been posted to assist Amateurs in repairing these units and restoring them to proper operation.
Thanks to Gerald, VK3GJM, for supplying this information.
EFRATON Rubidium Frequency Standard