% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 304 184 97 90 74 78 69 95 99 208 246 319 313 179 177 132 126 176 116 124 181 247 218 213 150 146 155 122 92 114 107 119 60 52 85 75 43 73 51 33 19 26 47 62 35 60 28 50 49 30 -20 26 22 -1 14 38 53 -16 1 34 29 -18 12 21 -3 13 -27 12 33 12 27 -17 -25 16 29 -16 -28 28 -27 14 -19 -19 -6 5 -24 -26 -12 11 35 5 14 28 25 23 39 9 40 22 60 40 46 39 -10 12 -19 -34 -25 -23 -20 -31 24 21 -12 -7 7 -26 -26 -20 34 -9 17 -31 -1 -22 -26 -28 11 -25