% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 174 115 104 83 64 79 86 127 88 139 138 302 273 438 366 569 589 316 414 519 609 500 593 600 357 581 457 357 322 199 351 427 215 370 217 119 222 217 172 178 226 162 110 154 161 112 101 136 118 142 100 107 135 119 103 97 108 97 110 77 70 100 81 52 68 60 61 71 51 51 43 49 61 67 44 37 59 54 47 33 49 38 21 45 22 38 47 28 38 34 33 36 30 6 22 39 34 29 -9 -5 -17 43 -10 -13 33 24 -11 9 19 -14 -21 -20 8 14 -23 15 -17 -32 -22 -23 3 -28 16 9 -13 -14 -16 10