% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 82 74 69 99 45 -11 40 143 243 349 203 249 282 345 223 322 90 192 197 182 227 131 95 77 110 177 151 156 126 159 182 168 129 79 190 142 101 149 213 153 206 233 146 230 175 172 137 95 160 131 122 112 96 92 94 122 93 121 68 90 45 94 73 102 50 51 81 69 57 61 15 68 36 27 59 38 51 58 66 18 38 37 20 -30 -11 29 45 31 56 25 -17 -16 24 -34 26 31 20 -55 5 24 10 21 36 14 46 22 33 -28 35 23 8 -20 34 -38 39 -11 -23 -35 38 26 -26 -21 -22 -20 -32 -40 37 -40