% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 176 203 140 217 132 63 83 147 140 443 710 1158 703 676 620 228 264 290 259 173 344 281 295 186 570 251 206 412 403 194 332 207 227 243 250 192 189 287 136 173 156 96 104 145 118 90 115 110 136 110 152 113 92 70 89 102 80 107 92 104 76 92 65 89 78 79 72 101 58 58 72 29 63 45 35 64 49 51 -22 39 48 44 45 39 54 19 50 -15 -11 34 34 30 25 36 38 25 32 37 19 -5 29 24 -10 -32 -3 -22 -21 22 -29 20 -31 -15 -11 -16 40 -28 14 41 29 3 -40 -21 -11 -25 -18 13 -16 -28