Absolute Power Calibration (Adjustment)

(N5161A / N5162A / N5166B / N5171B / N5172B / N5181A / N5181B / N5182A / N5182B / N5182N)

The ALC Linearity Calibration must be run prior to this adjustment.

This test finds the optimum operating point on the ALC. It also calibrates the 0 and 5 dB attenuator steps.

Required Test Equipment

Test Equipment

Critical Specifications for This Test

Recommended Model

Alternate Model(s)

Power Meter

None

N1914A

E4419B
E4418A
E4418B
E4419A
N1911A
N1912A

Power Sensor

None

E9304A

E9304A H18

N8482A1, 2


  1. The N8482A CFT Option is not currently supported for this adjustment.
  2. For the N5161A, N5162A, N5181A, N5182A models only. The dynamic frequency range of this sensor is insufficient for the N5171B / N5172B / N5181B / N5182B models.

Connections and Setup Procedures
  • All test equipment requires a 30 minute warmup period to ensure accurate performance.
  • In the following setup, cables are designated as solid lines and direct connections are designated as dashed lines.

Initialize Test Equipment

  1. Connect all test equipment as shown.
  2. Preset all test equipment and the signal generator.

 

Setup for Power Meter Calibration


 

Setup for Absolute Power Calibration

In Case of Difficulty

If this adjustment fails, perform the following steps in order:

  1. Check the equipment setup (see above). If the setup is incorrect, make the necessary corrections and rerun the adjustment.

  2. Refer to the troubleshooting section of the service guide. If you do not have a printed copy of the service guide (Option OBW), one is available either on the CD-ROM that came with your signal generator shipment or on the Keysight website.

  3. If necessary, obtain service from Keysight Technologies. Refer to Contacting Keysight Technologies.