% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 171 127 118 94 85 104 87 102 77 255 271 154 170 308 295 314 206 309 195 223 254 170 106 181 154 194 152 167 123 138 106 145 107 115 141 99 111 96 104 85 39 47 22 53 72 39 49 42 34 -16 17 37 -25 17 16 22 39 -16 -12 14 -31 -18 28 32 -31 27 -28 -19 -34 -13 -28 -40 -36 -38 -34 -11 -13 12 -21 -14 -22 -35 -13 -15 24 31 -25 -31 -12 25 13 -8 15 33 36 -38 20 38 23 -16 24 -32 -24 -23 -22 21 25 -41 15 -25 15 -40 33 -26 21 -19 -32 17 42 11 -16 19 -17 -13 36 -28 24 14