% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 119 98 87 183 140 162 110 74 69 156 157 109 178 281 430 622 580 650 1096 1092 858 1154 982 1040 727 924 364 379 612 270 423 308 593 371 272 249 197 223 278 183 214 217 170 203 147 145 142 143 134 137 118 177 95 134 114 92 103 103 111 94 69 48 47 68 46 23 48 41 -16 53 35 37 36 43 43 25 21 41 -15 28 26 43 22 7 -20 18 -16 -12 32 -25 -19 -16 -30 -35 -25 -33 10 -28 33 17 -22 -23 30 -23 -16 9 11 -5 39 22 13 -21 -14 22 15 16 -17 15 32 -9 16 -28 -19 -13 -31 -6 -23 -21