% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 236 160 95 124 101 89 68 100 191 154 307 293 227 325 411 428 396 390 331 337 253 397 222 195 254 294 267 168 172 96 152 163 186 161 196 219 128 181 166 143 132 116 111 197 38 125 145 127 104 99 196 144 138 169 69 97 97 77 107 69 67 108 63 94 80 84 75 81 59 39 72 77 54 -19 41 57 37 52 53 14 37 -25 -30 47 69 46 -27 -28 -23 -29 55 -11 -23 66 44 53 -19 41 -11 15 -37 -44 38 -35 6 14 40 65 18 23 5 72 -7 -36 35 -6 -13 -44 -18 -32 -19 28 24 -22 -46 -21 -13 -33