% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 145 74 95 120 68 98 111 70 107 168 137 255 360 310 198 238 185 82 125 70 89 121 136 148 108 89 110 94 84 35 65 48 55 59 46 63 56 35 56 -21 40 -23 -34 27 56 36 68 74 93 115 109 77 55 71 15 29 35 -28 36 30 23 29 -17 -15 -25 -28 -33 32 -34 14 -31 -35 -9 -8 -20 -32 -26 -34 -44 -29 -22 -40 -12 -9 -48 -29 -22 -38 -22 -29 -29 32 -26 -21 -34 -36 -30 -37 -30 -46 13 -38 -16 -33 -38 -38 9 14 35 20 20 -11 -25 22 25 -19 -29 19 39 -12 -31 27 48 24 -25 31 44 50