bref line# nshots rmin rmax irefdir irecip infil1 infil2 infil3 line#: =line number for refraction/direct analysis nshots =number of shot records to use (<=10) rmin =minimum offset to include rmax =maximum offset to include irefdir =0 refraction analysis =1 direct wave analysis irecip =0 normal shooting, shot fixed =1 reciprocal shooting, receiver fixed infil1 =input file 1 infil2 =input file 2 infil3 =input file 3 etc....
Note that the argument, irefdir determines if the setup will be for direct wave or refracted wave. The following data examples are taken from Michaels (1999). Also, see the bsu-user-guide3-1.pdf for more.