External Mod Inputs Calibration (Adjustment)

(N5166B / N5171B / N5172B / N5181B / N5182B / N5182N Option UNT or UNW)

The RF ABUS Calibration must be performed prior to this adjustment.

The goal of this adjustment is to calibrate the gain and offset for each of the two external mod inputs to the ADC. The offset is first measured by switching the external mod path to an internal ground point. Next, the gain is measured by switching the external mod path to an internal +1V reference. The offset from the previous step must be applied to this measurement.

No additional equipment required.

Connections and Setup Procedures

All test equipment requires a 30 minute warmup period to ensure accurate performance.

Initialize Test Equipment