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Stepwise Signal Agilent E8257D PSG

Question asked by dominics on Sep 28, 2015
I'm measuring with an Agilent E8257D PSG Analog Signal Generator (250kHz - 67GHz) and an Agilent powermeter plus sensor. The problem is, that the outcoming signal of the source is kind of stepwise with a width of 10 MHz. The setup is running with another source without any problems (also E8257D, but up to 40GHz), so the powermeter, sensor, the LabVIEW-programm or the cables should not be the problem.

Does anyone of you know the problem? I already tried to reset the source, but it didn't solve my problem.

I attached an example file, the signal shoud be smooth, not with the steps.

Thank you in advance,