Forgot to mention that with the problem occurring, and at the same time I observed the good cavity output on the spec-A, feeding a signal from an 8660D synthesizer into the LNA showed a zero IF level also. So it's downstream from there.
Dana, I have found that "watchful waiting" before jumping in to troubleshoot is the BEST advice. This problem however after a week or so was not correcting! The EFOS2 Maser does not servo the IF level to the Hydrogen pressure. You set the pressure you want and it does servo the Palladium leak to maintain that pressure. I do have a log of readings and when the problem is occurring they all (30 parameters) read nominal! This included the requested Hydrogen pressure value and the measured Hydrogen pressure value. Ole, Yes the 5.7Khz I.F. amplitude monitor. As I mentioned above feeding in an external signal also gave a zero I.F. amplitude reading. Of course now that I'm set up to monitor the L.O. it's not messing up! A watched Maser never fails??? Cheers, Corby _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
