% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 205 120 81 70 60 22 37 34 108 133 311 439 442 269 297 202 160 175 183 119 148 80 105 104 191 116 50 65 76 32 68 43 41 39 32 44 41 41 38 -17 14 12 21 12 -28 -34 -35 -22 23 -26 -37 -40 -34 -37 -41 -21 -38 -33 -34 -36 -38 -40 -37 -36 -37 -33 -36 -35 -44 -21 -33 -36 -43 -14 18 -37 -7 -35 21 -22 -33 -31 -16 -27 -19 -35 -39 -43 -29 -31 4 -18 -18 11 -20 -36 -8 -27 -23 -16 -13 15 -29 19 -19 -38 -21 20 26 23 17 -27 -15 27 -15 -27 14 41 32 -34 -3 16 19 14 46 6 29 8