root@trb-dev:/home/mod6/fg2# dd iflag=fullblock if=/dev/ttyUSB0 of=fg2.fg2.bin
^C2055906+0 records in
2055906+0 records out
1052623872 bytes (1.1 GB) copied, 137562 s, 7.7 kB/s

root@trb-dev:/home/mod6/fg2# ent fg2.fg2.bin
Entropy = 8.000000 bits per byte.

Optimum compression would reduce the size
of this 1052623872 byte file by 0 percent.

Chi square distribution for 1052623872 samples is 252.32, and randomly
would exceed this value 50.00 percent of the times.

Arithmetic mean value of data bytes is 127.5023 (127.5 = random).
Monte Carlo value for Pi is 3.141604951 (error 0.00 percent).
Serial correlation coefficient is -0.000016 (totally uncorrelated = 0.0).
root@trb-dev:/home/mod6/fg2#