% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 192 67 53 36 55 46 33 23 92 140 150 183 154 179 131 139 121 135 78 144 146 99 117 77 84 37 -25 65 -20 49 52 10 21 -26 24 -41 -33 27 -24 -16 -30 -30 -11 -40 -16 -34 -38 -26 -17 -26 -36 -37 -20 -29 12 -32 -27 -35 -35 -38 -38 -43 -42 -40 -32 -31 -43 -34 -38 -32 -30 -45 -44 -30 -27 -20 6 -22 -38 -35 19 -31 -29 -30 -41 -34 -24 18 -18 -32 -37 -33 -38 -28 -37 -38 -39 10 -29 -29 1 20 33 7 39 -24 -17 -19 5 -24 9 20 -23 -23 -17 -33 23 -36 32 21 20 16 34 -24 -22 20 23 39