% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 195 106 116 72 97 95 76 66 141 222 323 652 274 316 287 252 162 236 151 147 123 91 102 158 115 138 138 110 85 79 96 99 58 56 80 51 92 101 94 85 85 90 69 63 64 63 60 59 43 30 47 63 67 40 42 56 14 46 36 29 30 43 23 34 12 -8 14 46 50 43 23 54 36 28 15 1 40 22 -3 27 36 12 21 -16 26 3 17 -16 34 2 -18 -21 15 18 16 8 27 -18 31 -24 -9 -18 20 16 14 -9 -16 -28 12 -26 -26 -26 13 21 -22 29 14 17 10 7 -17 -21 -9 31 -25 18 9 18