Joe, The H-P 435A, 436A, 437A & 438A power meters all have a 50 MHz calibrator source specified to +/-0.7% at 0dBm (+/- 0.35% in votlage). This still requires some traceable calibration, but they tend to be quite close even when past the cal due date.
Pete Rawson _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
