% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 130 95 109 103 55 69 77 81 71 141 208 144 217 196 225 327 315 562 677 552 601 373 387 396 297 316 303 268 249 195 169 171 176 173 106 167 127 119 167 106 114 90 141 136 90 99 108 72 66 73 44 58 69 71 44 68 80 89 38 75 79 88 95 80 62 51 73 65 81 94 59 50 61 58 70 64 59 55 63 40 -11 43 41 38 59 46 53 57 20 -12 44 36 17 30 -25 -13 -30 -16 7 8 0 57 -32 21 -28 26 -7 22 -38 35 23 44 21 -16 29 -28 -16 -35 -13 -31 22 9 -12 -39 -34 48 -26 -20