Electronic – use the external trigger to simultaneous capture waveforms on two oscilloscopes

oscilloscopesynchronizationtrigger

I want to look at synchronization in a 6 oscillator network (oscillators are about 100 kHz, 1.5 V_pp, if this matters). I have a 4 channel oscilloscope (Tektronix TDS 2024B) and a 2 channel oscilloscope (Tektronix TDS 1001B). Can I use a signal generator as an input to the External Trigger of both oscilloscopes so that I can perform a screen capture at the same time on both scopes? I was imagining that I could input a triangle wave and capture at the peak, or something like this.

I am just learning electronics (chemical engineer/applied mathematics background), so if the answer is yes, please keep in mind that my curiosity is great but my knowledge is shallow.

Best Answer

From this document: "Most Tektronix oscilloscopes also provide a discrete output that delivers the trigger signal to another instrument—a counter, signal source, or the like."

It's probably on the back of the scope, and you may need to read the manual to get it working right.

If you were operating at 100MHz I'd also caution you that there's probably some timing skew -- but unless the oscillators have much sharper rise times than their frequencies and you're comparing nanoseconds of difference, then you're probably OK. If you do need to resolve things that fine, get everything working and swap inputs between the two scopes to see how much they change timing. Ideally you'll be able to calibrate for any timing offsets.