% 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) -28 -38 20 44 151 323 208 320 350 304 276 225 217 145 272 424 395 391 329 280 290 242 188 214 153 192 158 145 151 158 145 127 113 108 110 128 102 87 75 83 83 80 38 64 37 39 35 29 32 43 27 42 40 -24 27 -11 -25 -37 -24 43 -15 -27 -48 -34