This test measures the rise and fall time of the Scan modulator which is defined as the step response for a 50 dB change in level. The signal analyzer is set to zero span, and the modulating signal amplitude is set to produce a step of 50 dB. The time between the 5 dB and 45 dB points is then determined and returned as the rise time or fall time.
Test Equipment |
Recommended Models |
Alternative Models |
Spectrum Analyzer |
N9030B Opt 5xx1 |
N9030A Opt 5xx1 E444xA2 |
Function Generator |
33622A |
33611A |
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Setup for Scan Modulation Rise/Fall Time
If this performance test fails, perform the following steps in order:
Check the equipment setup (see above). If the setup is incorrect, make the necessary corrections and rerun the Performance Test.
If this test fails with the equipment set up properly, refer to the troubleshooting section of the signal generator's 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.
If you cannot correct the problem using the troubleshooting procedures in the Service Guide, obtain service from Keysight Technologies. Refer to Contacting Keysight Technologies.