Chapter 4 237
Calibration
Scalar-Mixer Calibration
4. Calibration
Step 9. Connect the OPEN calibration standard to the test port x (connector for the DUT) you have
selected in
Step 6.
Step 10. Press Port x @Freq x Open to start measurement of the calibration standard.
Step 11. Press Port x @Freq y Open to start measurement of the calibration standard.
Step 12. Disconnect the OPEN calibration standard you connected in Step 9 and then connect
SHORT calibration standard in its place.
Step 13. Press Port x@Freq x Short to start measurement of the calibration standard.
Step 14. Press Port x@Freq y Short to start measurement of the calibration standard.
Step 15. Disconnect the SHORT calibration standard you connected in Step 12 and then connect
LOAD calibration standard in its place.
Step 16. Press Port x@Freq x Load to start measurement of the calibration standard.
Step 17. Press Port x@Freq y Load to start measurement of the calibration standard.
Step 18. Follow steps Step 9 to Step 17 for port y.
Step 19. Press Return.
Step 20. Press Transmission.
Step 21. Connect a THRU between the test ports x and y (between the connectors for the DUT) you
selected in
Step 6.
Step 22. Press Port y-x@Freq y Thru to start measurement of the calibration standard.
Step 23. Press Port x-y@Freq x Thru to start measurement of the calibration standard.
Step 24. Press Return.
Step 25. Press Power Meter.
NOTE In scalar-mixer calibration, the power meter is used. For more on how to set the power
meter, see “Preparing to control the power meter” on page 210.
Step 26. Press Use Sensor. Each time the key is pressed, Channels A and B switch over alternately.
If you are using a one-channel power meter, select Channel A.
Step 27. Connect the power sensor for the selected channel to the selected port, as shown in Figure
4-77.
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