Hi Group, I'm a newbiew and just bought a Lucent RFG-RB rubidium source on Ebay from a reliable seller. I am observing a daily variability of about 80Hz and hourly variability of a few Hz with a calibrated HP 5334B counter (with oven oscillator option). The counter and rubidium source have been powered on for over a week in my basement workgroup which has a stable ambient temperature. I'm using a cannnibalized power supply from an HP-5328A (all the caps replaced) for the 24v rubidium power source ... its supposed to be a quite stable PSU.
Is this variability more likely due to the rubidium source (failing bulb) or due to problems with the 5334B counter? Any advice appreciated. Jerry K1JOS _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
