The Tektronix DPO/DSA/MSO70000 models above 12 GHz in bandwidth provide 50 GS/s sampling rate on each of 4 channels simultaneously, or 100 GS/s sampling rate on 2 channels in interleaved mode. With interleaved operation comes the opportunity for using two instruments, synchronized together, to get 4 channels sampling at 100 GS/s.
This application note describes the most precise method to align acquisitions between two oscilloscopes.