% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 207 130 85 101 88 55 53 77 102 253 176 226 159 261 355 457 348 301 114 226 156 139 78 102 103 104 94 57 42 84 33 73 44 55 70 59 59 42 46 44 22 13 -11 78 55 39 33 46 61 58 67 89 60 115 130 97 125 133 130 104 97 100 96 81 88 37 80 70 100 43 72 -39 21 13 45 -38 33 22 48 20 -17 84 30 -9 51 -12 11 -36 -25 -22 -39 -21 36 44 42 9 42 -44 -32 -18 49 -27 -20 -17 -27 49 -23 -39 -35 41 14 9 26 38 -24 -33 15 -35 28 -42 -32 23 33 43 29 -29 -19 32