root@trb-dev:/home/mod6/fg1# dd iflag=fullblock if=/dev/ttyUSB0 of=fg1.fg2.bin ^C2681521+0 records in 2681521+0 records out 1372938752 bytes (1.4 GB) copied, 182082 s, 7.5 kB/s root@trb-dev:/home/mod6/fg1# ent fg1.fg2.bin Entropy = 8.000000 bits per byte. Optimum compression would reduce the size of this 1372938752 byte file by 0 percent. Chi square distribution for 1372938752 samples is 245.58, and randomly would exceed this value 50.00 percent of the times. Arithmetic mean value of data bytes is 127.5002 (127.5 = random). Monte Carlo value for Pi is 3.141581376 (error 0.00 percent). Serial correlation coefficient is 0.000017 (totally uncorrelated = 0.0). root@trb-dev:/home/mod6/fg1#