ML248xA / ML249xA Common Procedures
5-86 13000-00162
September 2005
Performing a Zero dBm Calibration
1. Connect the sensor to the “Calibrator” connector on the front of the ML248xA /
ML249xA.
2. Press the Cal/Zero hard key.
3. Press the Cal 0 dBm soft key to display the [Calibrate] menu.
4. Press the Calibrate Sensor A or the Calibrate Sensor B soft key.
Zeroing the Rear Panel BNC Connector
1. Press the Cal/Zero hard key.
2. Press the Ext v Zero soft key to calibrate the units to read zero volts on this BNC.