b12 4 1000 60000
b12.dat 16 2/uV 12 0 21 5249 0 AECG1
b12.dat 16 2/uV 12 0 32 20913 0 AECG2
b12.dat 16 2/uV 12 0 254 -23270 0 AECG3
b12.dat 16 2/uV 12 0 129 13525 0 AECG4