Using Detector Calibration; L-22. Automatically Characterizing And Compensating For A Detector - HP 8360 User Handbook Manual

Using Detector Detector calibration is useful for characterizing and compensating for
negative diode detectors used in external leveling. Detectors may be
Calibration
characterized by three operating regions as shown in Figure 1-12:
the square law, the linear, and the transition region. The following
steps use an HP 437B to automatically characterize the operating
regions and use this information to automatically compensate for
the detector being used. The equipment setup shown in Figure l-22
assumes that .the steps necessary to correctly externally level have
been followed.
Refer to menu map 9, USER CAL.
Figure l-22. Automatically Characterizing and Compensating for a Detector
1. Connect the power meter as shown.
2. Zero and calibrate the power meter/sensor.
3. Enter the appropriate power sensor calibration factors into the
4. Enable the power meter/sensor cal factor array. For operating
5. Connect the power sensor to the output of the coupler
6. On the synthesizer, set the power level and start/stop frequency
7. Press [USERCAL).
power meter.
information on the
HP 437B power meter refer to its operating and service manual.
(or splitter).
information as desired.
control and is performing the sequence of steps necessary to
generate the compensation information.
Getting Started Advanced 1-47