% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 168 126 126 152 90 67 61 50 86 49 125 90 63 164 239 198 226 124 106 121 137 87 -10 34 58 57 81 94 122 144 62 84 109 57 44 60 55 33 -11 3 42 -29 -21 -26 -28 -25 -20 -35 -35 -37 -39 -33 -28 -13 -36 16 39 19 79 57 70 81 107 103 99 124 53 121 137 127 133 91 107 79 78 81 68 69 62 40 37 65 23 52 13 59 33 51 33 -21 55 42 35 24 33 51 -14 -29 48 34 34 41 -2 29 -28 -26 -10 -37 -17 34 34 -21 -32 -6 39 -29 -16 -7 6 -37 -36 -27 -17 -32 -18 -8 19 28