HP 8530A Operating And Programming Manual

Also see for 8530A: User guide User guide User guide

Antenna CalibrationAngle Domain CalibrationInitial Setup, Finding Boresight1. Mount the standard gain antenna on the proper antenna mount and connect it to yoursystem.2. Press RECALL NNNNNNNNNNNNNNMORE NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNFACTORY PRESET .3. Press DOMAIN NNNNNNNNNNNNNNNNNANGLE .4. Press STIMULUS MENU NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNSINGLE ANGLE .5. Press NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNFREQUENCY OF MEAS , then enter the desired calibration frequency.6. Press NNNNNNNNNNNNNNMORE NNNNNNNNNNNNNNNNNNNNNNNNNNNNNCONTINUAL .7. Press NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNTRIGGER MODE NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNTRIG SRC FREE RUN .8. Select the desired parameter, PARAM 1 , PARAM 2 , PARAM 3 , or PARAM 4 .9. Turn on Marker 1 by pressing MARKER NNNNNNNNNNNNNNNNNNNNNNNNNNMARKER 1 .10. Now use the positioner controls to move the antenna. Watch the data readout forMarker 1. When the marker reaches peak value you have found the boresight for thatparticular axis.11. Repeat for each axis, if necessary. Boresighting is iterative so you may have to measureback and forth between axes until the true boresight is found.Antenna Calibration Steps1. Press the CAL key (located in the MENUS block), then press:NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNANT. CAL uWave A.1 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNFAR FIELD:RESPONSEA menu will appear with seven standard gain antenna de nitions to choose from.2. Select the de nition for your standard gain antenna. If you must create a de nition for yourstandard gain antenna, refer to \Creating a Standard Gain Antenna De nition", at the endof this chapter.The receiver will now measure the standard gain antenna, and create a list of o sets calleda \Cal Set."Press NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNDONE RESPONSE and proceed to \Finishing the Gain Calibration," below.Finishing the Gain Calibration3. You are now done with the gain portion of the calibration. Now you should decide if youwant to perform an \isolation calibration." An isolation calibration reduces crosstalkbetween inputs (either reference-to-test or test-to-test), and requires a high-quality 50 load.a. If you do not want to perform an Isolation Calibration, press NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNOMIT ISOLATION andproceed to \Saving the Cal Set to a Cal Set Register."b. If you want to perform an isolation calibration, refer to \Isolation Calibration," below.Menus Block 5-15