% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 104 102 25 35 31 -27 110 104 104 163 198 257 107 93 161 152 295 206 396 124 190 235 229 254 217 173 93 117 111 78 114 70 33 46 48 33 39 58 25 43 -17 -37 -19 39 -35 28 33 42 69 99 140 86 114 80 182 156 217 265 161 177 115 177 132 78 149 114 117 119 126 96 76 93 71 97 69 94 69 40 58 37 65 61 55 17 27 38 32 40 63 -13 45 -11 -2 18 -31 38 -7 29 22 -35 18 39 24 49 25 27 39 17 -16 19 -21 -39 43 -32 20 31 -20 -23 -23 -26 12 -29 -11 -24 -39 -18 -26 -31