% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 115 60 42 46 42 32 53 76 122 130 179 134 72 228 164 155 195 233 173 160 188 76 112 99 103 156 99 121 87 78 68 121 80 119 98 88 202 152 57 157 142 87 104 96 120 136 106 172 90 158 111 105 86 68 90 72 103 92 104 84 112 54 48 36 45 82 67 50 54 78 32 30 10 34 25 74 -12 51 60 37 47 -22 -25 17 29 -20 28 69 9 18 40 17 -7 15 -13 10 48 -31 5 14 -20 -21 39 13 -19 12 -24 -2 -22 -25 34 -17 36 -11 -24 14 25 37 -26 34 -25 -17 7 -25 27 -21 5 8