- DC removal
- 2-bit ADC (0.5 MHz speed)
- Build a sampler, of 0.5 MHz.
- Put together four 2-bit samples on a bus with an isolator for i/o.
- Feed the signal to the data acquisition card sitting in the PCI slot of a PC.
Collect 4 such samples at one time (for simplicity, copy the same signals 4 times)
One could take 10 MHz signal, and use every 20th pulse (simple counter) for sampling.