% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 298 152 126 69 80 68 65 118 162 156 141 260 223 158 123 139 57 65 96 74 95 91 65 80 105 83 72 65 56 64 35 49 23 48 31 51 44 40 50 -15 6 34 23 16 -10 39 26 2 34 -24 -11 -3 16 -25 -10 -31 15 -31 -25 -18 -21 -18 -33 -28 -15 -15 -22 -34 -26 9 -29 -31 -24 -17 -16 -15 -7 20 -25 -32 -21 18 -25 -3 -34 -32 -8 -18 -23 -8 25 20 -20 -12 -24 -20 29 -26 -21 18 -12 -4 -11 -32 -22 -5 33 25 -6 -6 -14 -20 13 -15 17 -15 17 25 -22 -18 3 -21 9 6 21 19 12 27