% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 108 49 86 63 69 -22 -17 -8 22 67 39 173 218 611 432 579 352 499 404 360 258 267 249 169 197 170 164 152 132 93 94 165 141 171 138 135 212 112 173 155 101 130 72 87 50 64 111 87 86 70 83 63 75 74 10 88 85 38 76 55 46 93 70 73 18 63 70 34 86 38 57 61 45 32 35 41 51 64 49 38 45 -22 -18 47 63 39 35 35 36 -22 -25 39 -14 34 38 -22 12 37 -31 -18 17 -14 26 23 -34 -17 19 -37 50 10 -26 -10 44 26 -18 13 25 -14 -35 -21 31 -31 -27 -18 -7 -28 -11 13