% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 207 156 125 132 96 88 110 66 99 135 100 158 187 339 382 331 410 761 604 267 240 284 329 290 174 303 293 303 287 195 359 216 214 152 155 195 138 95 140 113 107 101 109 110 115 125 87 115 71 104 84 80 59 79 90 82 71 60 58 41 56 90 111 52 61 33 66 61 50 54 49 54 36 53 39 16 28 25 26 21 37 -5 34 -6 24 -27 10 -15 14 -11 24 35 29 -21 7 22 -19 21 42 -14 -18 18 24 24 -7 14 -13 17 32 -31 2 1 11 -32 -13 -23 -2 22 -21 -23 -33 30 23 -34 4 37 -35 21