Agilent / HP / Keysight 536A

This Frequency Meter has convenient readout with high resolution is provided by long spiral dials.

These dials have all frequency calibrations visible so you can tell at a glance the specific portion of each band you are measuring.

Overall accuracy of these frequency meters is 0.17% and includes such variables as dial calibration, temperature variation over a 20°C range, relative humidity effects, and backlash.

Extreme resolution and readability permit individual scale correction charts to be made and readings repeated with even higher accuracy.

Calibration marks are every 2MHz for the 536A and every 10MHz for the 537A.