% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 113 62 48 60 70 30 124 50 62 95 202 257 163 285 190 294 406 188 242 191 92 89 106 83 91 76 71 37 58 41 56 50 21 31 35 48 -23 24 25 30 26 38 -4 19 21 42 2 31 36 60 62 62 31 89 70 65 75 111 82 105 43 51 76 92 38 81 41 53 98 38 32 55 38 -14 -14 61 31 68 48 35 35 55 37 26 38 30 46 -20 32 33 -16 -19 21 34 56 18 28 44 5 4 15 11 -16 -6 36 23 -17 20 14 -27 -24 -19 -29 24 -10 -17 -7 -13 -34 -33 10 9 27 28 -28 -16 19 -22