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Frequency vs time measurement

Question asked by klafond on Nov 11, 2011
Latest reply on Nov 14, 2011 by tabbott
I have a need to display a frequency vs time plot using VSA. My input signal is a frequency sweep starting at 100MHz and sweeping to 1GHz in 1.1 us, in 8.8MHz steps. This signal is a "one time" triggered event (i.e. the signal is at 0 volts prior to triggering, starts at 100MHz and sweeps upto 1GHz and then returns to 0 volts.

I need to display the instaneous frequency vs time, and have been unable to figure out how to accomplish this using the VSA software. App Note 5990-9108EN.pdf shows a frequency vs time plot but does not give information on how to obtain the plot.

Any help you can give me would be much appreciated.