% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 64 Frequency Bands are 0.01562500 Hz wide(first frequency band is centered at 0.00830078) 101 75 55 20 109 216 230 306 426 339 300 316 540 803 620 660 648 517 407 369 274 290 275 294 272 258 201 241 217 179 181 161 160 156 149 134 135 101 94 94 92 68 79 57 79 56 53 50 -11 45 38 -4 -17 20 7 -24 5 -31 -29 35 19 22 -19 -46