% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 158 -55 83 89 132 102 91 90 88 75 95 44 137 137 114 -35 106 81 96 60 174 174 80 182 185 141 202 67 177 83 62 132 133 126 102 57 28 115 64 84 66 26 -28 51 107 44 39 107 -62 122 -20 115 74 97 118 83 119 136 96 87 122 60 137 93 77 85 46 107 44 83 -78 -57 45 87 -55 70 55 70 -30 34 85 -68 63 50 -24 -82 -55 59 63 -75 -44 -68 -44 74 -38 40 44 88 -51 62 33 47 16 -63 70 -21 -31 15 47 -78 -35 -71 -45 110 14 -46 69 46 -80 -56 -33 -32 -22 -91 -32 -75 31 61