% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 103 117 117 88 52 98 67 13 68 154 173 132 133 147 216 168 154 366 368 496 357 247 204 147 224 147 95 101 96 90 92 100 88 64 79 78 92 48 35 71 58 85 50 67 20 45 -30 -6 27 36 16 16 29 26 -27 23 -26 56 -5 51 -35 21 -39 -38 -19 43 -27 -30 -45 2 54 -25 -23 -31 -3 34 -7 -23 30 -20 29 -17 39 14 -31 11 50 26 -30 44 -34 4 -37 12 57 18 -17 -31 -17 5 -38 11 -39 35 16 21 26 35 70 28 -17 35 -27 -11 -26 32 -27 -28 -17 7 -32 11 -41 51 12 -31 -24 15