% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 76 76 34 49 62 52 79 268 130 102 175 156 174 158 123 104 142 223 184 178 194 133 151 108 128 106 134 101 200 121 138 86 101 69 47 51 80 73 47 14 82 65 61 48 63 79 98 66 58 76 88 79 79 44 75 63 116 98 70 92 106 113 93 78 76 74 65 67 95 55 67 92 104 67 71 56 68 82 69 53 36 58 35 63 23 31 75 79 28 -14 33 61 36 31 22 35 -29 -30 -23 44 21 36 -19 -30 -19 19 -44 -9 23 -13 30 -20 -13 33 -30 11 21 34 36 47 27 -19 -17 -20 -38 -24 5 -39