Colin Bradley wrote: > I just picked up a 5345A from eBay. This unit has a 10811 oscillator > instead of the 10544 depicted in the manuals I have. The serial number has > been removed. Does anyone know if there is an EFC adjustment for this > counter or is the course control the only way of setting frequency? > Colin
I don't know of any instrument in the history of HP/Agilent that ever used the EFC as a fine manual frequency adjustment. The EFC was only ever used as a phase locking interface. The tuning adjustment is adequate for annual calibration purposes (IE, you can set it within 1 Hz, or 1E-7 if you are careful, and the expected annual aging is in that ballpark). Rick Karlquist N6RK _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts