% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 213 80 73 42 62 15 -29 25 64 46 90 114 170 468 409 515 323 396 443 665 432 233 259 241 267 270 146 194 238 182 212 301 285 206 296 260 220 321 204 137 163 94 115 113 106 115 103 62 114 96 91 61 75 85 75 56 56 46 88 58 54 59 6 29 46 11 7 15 47 17 -20 24 25 23 23 -10 -20 36 37 45 32 -5 -19 -24 -38 -29 -26 -10 -18 -34 -25 29 -40 -10 -36 -21 -17 19 -29 -32 14 24 24 -22 49 -18 30 -16 -19 35 -36 -20 27 43 18 -12 -13 -13 -26 -22 33 -30 12 9 -32 -12 -16 11