% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 129 91 89 54 9 -27 -20 36 54 92 74 72 184 121 100 132 50 128 111 182 158 141 199 315 179 223 197 210 201 117 114 96 43 44 38 59 -24 -23 22 11 -28 33 50 45 81 77 135 156 163 148 136 72 148 101 102 66 87 55 138 64 65 64 66 95 59 59 75 83 86 30 49 72 85 89 97 64 56 60 49 47 46 32 100 46 54 22 29 29 -25 37 20 -21 -9 41 43 33 50 22 7 21 -11 24 21 -38 18 32 21 -26 35 -32 -34 -24 -31 -8 -10 42 -49 26 -43 -46 -13 -43 50 1 -10 49 -13 19