% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 89 89 144 76 136 116 82 51 132 168 275 331 369 408 254 214 310 356 314 176 336 190 228 207 187 209 150 79 133 107 130 105 93 83 89 111 90 86 73 56 88 94 73 161 108 156 122 96 67 125 111 105 108 110 56 53 64 56 60 103 64 72 30 59 40 35 42 71 37 54 66 25 62 57 36 30 -26 42 53 39 30 46 -15 48 -30 62 37 4 29 28 -19 -29 -22 -15 24 -12 23 -17 26 -4 41 0 25 -41 34 23 28 48 -33 30 52 -44 -17 -39 -7 -26 26 23 -18 -33 24 43 -26 -22 -43 -18 -18 9