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8560E Series - How to capture screen under "zero-span"

Question asked by hedgehog on Feb 13, 2015
Latest reply on Mar 26, 2015 by MikeM

I tried to capture the screen with KE5FX toolkit and with a Prologix GPIB-USB card. They work fine for spectrum displays, but when the SA is set to zero-span to display time-domain waveform, all I can capture is an empty screen with graticule and markings, but no trace. I was wondering if the signal is not digitized under zero-span? Thanks.