% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 232 163 107 40 100 109 99 120 83 50 92 159 128 212 262 235 238 357 251 231 293 206 203 286 186 190 229 182 142 133 132 181 164 77 15 116 144 137 102 128 139 87 106 78 107 90 74 75 101 105 99 90 138 57 35 41 80 41 71 72 28 51 54 39 34 24 65 -44 74 67 77 17 -14 48 42 54 14 40 108 25 -23 -19 -43 -9 38 -18 66 77 44 15 56 -33 59 71 -1 32 -26 -53 33 48 -27 -17 -28 60 -62 -40 -37 -40 35 80 33 90 -27 -50 60 38 -48 -22 -42 22 25 23 -43 -48 43 42 -65 58