HP R532A 26.5GHz to 40GHz frequency range, 10MHz calibration increment, WR-28 connector. The R532A Frequency Meter is an easy-to-use, reliable meter to measure frequency accurately. This direct reading frequency meter measures from 26.5GHz to 40.0GHz in calibrated increments of 10MHz. Long scales and numerous calibration marks provide high resolution with frequency read directly in GHz. Overall accuracy is 0.120%. Waveguide: WR28. Equivalent Flange: UG-599/U.