% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 54 64 67 35 58 65 31 90 134 105 117 115 153 91 171 277 155 214 224 164 99 115 86 95 154 114 103 60 60 116 80 88 98 83 153 150 129 106 140 182 190 121 145 155 109 112 143 137 84 68 70 88 85 117 78 120 86 46 62 32 59 39 54 58 49 70 37 40 55 48 21 60 41 27 55 37 60 42 18 61 58 14 26 14 18 10 63 6 -23 27 38 42 24 36 17 31 26 40 23 18 34 37 -19 13 -21 13 -7 -33 4 -24 -15 -14 -26 37 -21 5 26 -28 -36 13 16 -17 24 -27 18 13 -20 -22