I used to use xenon flashes to calibrate latencies to calibrate data streams. I had a few different SDR devices hooked up to consumer hardware, and a high resol

I used to use xenon flashes to calibrate latencies to calibrate data streams. I had a few different SDR devices hooked up to consumer hardware, and a high resolution/accuracy (50ns) time device I could control a xenon flash with. I’d trigger the xenon flash and basically just inject the flash in the data.