Jordon, per BrotherBob's suggestions, the options presented are pretty reasonable for a DIY project (manual data logging). I was thinking of doing a complete 20-20 sweep and for that, i would need the Rives ETF software and a laptop.
At this point, i may not have easy access to a laptop and as such, may use the other approach...for now.

"Those who preach the myths of audio are ignorant of truth."