% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 134 94 78 68 78 44 118 296 162 175 93 192 310 562 386 394 271 471 323 288 303 276 235 358 232 335 414 274 286 451 231 167 241 182 125 134 188 128 77 106 83 128 112 52 78 82 102 113 70 44 43 17 58 41 48 54 63 52 25 41 17 -20 45 -14 49 48 -26 47 35 25 -37 34 -14 -14 -11 -17 -21 14 -28 48 -31 10 -16 22 11 25 18 64 13 -17 -39 -35 -38 -43 -22 17 -18 -30 -32 16 14 20 -14 -25 20 36 -19 -30 -25 44 -29 13 -39 39 27 -20 42 5 -21 24 -30 4 57 43 -17 30 33 -35