I am measuring a clock signal. This clock operates at three frequencies: 10, 20 and 80 MHz. I have measured the 10 and 80 MHz frequencies and now I want to measure the 20 MHz signal. My problem is that I don’t find a good way to trigger at the 20 MHz clock. With the 10 and 80 MHz signals is use the Pulse width trigger and set Trigger On parameter to “> time” or “<time”. For the 20 MHz it would be nice to have an option to set “> time” AND “< time”. Unfortunately, MSO9254A does not have this option.
Is there another way to trigger on the 20 MHz signal?