% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 198 169 150 126 95 106 133 126 169 153 295 186 212 147 160 220 246 210 195 301 235 219 145 134 183 137 130 115 117 88 112 66 91 85 67 78 57 109 66 57 81 -16 43 47 50 42 106 74 62 63 31 30 -15 52 50 66 47 35 -26 13 66 -22 38 81 70 43 55 54 56 61 64 73 -19 48 47 53 53 75 39 45 45 65 47 27 33 50 43 55 54 -17 49 8 65 44 27 -13 -40 52 -26 43 16 -12 22 53 36 15 -41 -36 -19 40 -22 21 -26 38 -52 -23 69 -35 -33 44 37 -6 -39 -36 -23 11 -8 19