% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 191 140 107 157 115 111 98 139 187 114 360 677 812 1013 1488 1462 874 865 631 594 788 694 461 667 498 474 413 356 339 337 418 265 180 335 187 236 232 155 185 150 121 143 130 130 151 101 102 97 100 80 92 91 69 85 95 46 72 79 52 53 79 18 43 38 53 65 50 67 43 49 37 60 56 33 66 55 63 46 81 59 51 44 69 64 48 73 28 63 13 39 42 49 22 34 -10 16 -16 42 22 -11 33 36 5 19 50 -34 -27 47 -29 -20 18 -21 30 22 -34 8 3 -40 23 -35 -33 -36 -8 54 -26 -27 12 12