% 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) 76 20 43 20 57 176 257 345 374 300 228 171 115 136 79 96 87 63 63 108 148 181 266 342 307 291 249 192 199 159 109 125 116 136 106 127 88 105 72 74 60 81 44 40 52 54 48 47 34 26 33 46 37 24 -20 -18 -10 23 -32 -36 19 -36 -33 -37