root@trb-dev:/home/mod6/fg3# stty -F /dev/ttyUSB0 115200 raw -echo -echoe -echok root@trb-dev:/home/mod6/fg3# dd iflag=fullblock if=/dev/ttyUSB0 of=fg3.fg1.bin c^C2375734+0 records in 2375734+0 records out 1216375808 bytes (1.2 GB) copied, 160733 s, 7.6 kB/s root@trb-dev:/home/mod6/fg3# ent fg3.fg1.bin Entropy = 8.000000 bits per byte. Optimum compression would reduce the size of this 1216375808 byte file by 0 percent. Chi square distribution for 1216375808 samples is 275.67, and randomly would exceed this value 25.00 percent of the times. Arithmetic mean value of data bytes is 127.4992 (127.5 = random). Monte Carlo value for Pi is 3.141597198 (error 0.00 percent). Serial correlation coefficient is 0.000028 (totally uncorrelated = 0.0). root@trb-dev:/home/mod6/fg3#