% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 201 73 83 82 65 63 81 81 88 171 182 194 255 427 559 407 355 476 403 305 449 725 342 349 364 238 150 197 175 191 134 103 125 148 111 89 63 100 67 106 60 67 78 63 52 51 68 45 56 41 60 49 48 47 38 26 21 29 38 30 41 34 35 42 22 24 39 24 31 40 35 26 11 24 17 28 42 45 30 -12 34 36 4 14 23 21 18 -8 -7 5 11 1 20 23 6 24 -13 -5 13 8 -20 14 -2 -10 15 -19 12 -13 -12 -15 -12 -16 15 -9 -19 -8 20 14 -17 4 23 -7 5 14 -13 15 24 3