% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 151 70 93 72 57 52 39 83 132 121 206 503 408 224 429 179 281 198 189 107 135 92 92 139 88 137 85 100 87 76 54 79 49 51 73 97 100 78 55 69 50 110 59 26 55 32 24 41 67 46 65 9 71 93 19 41 58 45 -33 43 51 68 53 40 44 27 48 40 40 51 19 58 27 -26 29 41 45 -26 -2 -6 -34 38 34 -31 -22 14 57 -18 30 -8 -24 -10 32 -21 29 -30 14 16 59 11 41 -27 -25 -30 -22 -34 -35 41 -43 33 43 10 -13 -31 -28 -13 21 30 -23 29 10 -20 9 -8 -35 -19 -23 26