% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide(first frequency band is centered at 0.00439453) 92 107 88 74 45 71 15 28 93 63 100 183 271 267 246 303 147 256 294 416 606 594 463 458 274 307 348 237 216 268 307 209 226 259 303 309 437 396 315 401 497 257 326 327 297 320 206 267 287 216 240 235 181 189 197 171 136 212 193 170 152 128 162 150 147 151 146 89 125 96 118 131 97 86 78 106 95 69 57 78 62 71 74 102 84 70 42 83 80 74 80 67 63 35 50 60 -7 35 40 12 -32 10 8 30 51 -5 -30 64 30 29 -32 34 -47 -21 -22 22 6 41 -30 -38 16 -45 -36 -8 -33 -44 39 -10