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Differential versus Single-Ended Measurements with 53181A

Question asked by rlozano on Mar 31, 2011
Latest reply on Mar 31, 2011 by rlozano

How do you measure a differential clock with the single ended probe provided with the 53181A frequency counter?

I have success measuring single-ended clocks always displaying steady at the right frequency, but I have not been able to measure differential clocks successfully.

The differential clock looks fine on the oscilloscope, but the frequency counter measures the wrong frequency using the single-ended probe and just probing one leg of the differential clock.