% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 84 71 79 74 78 66 -17 163 105 202 282 156 219 153 323 220 149 143 211 217 392 302 112 187 102 95 161 197 80 125 118 120 72 98 128 72 103 99 97 74 76 90 64 52 68 79 77 63 93 53 83 74 54 -37 61 44 -7 42 -16 62 47 28 -45 14 22 -50 -25 48 -18 -13 -46 -42 35 -21 40 17 55 -16 30 55 -46 -20 -37 -12 -34 -35 23 25 -32 -19 -31 -42 27 -54 -29 14 -24 -20 -52 -18 30 18 43 32 17 59 -46 12 -24 -19 12 28 44 52 21 -10 23 -33 -34 -13 -44 -35 38 -33 -12 -21 -6 11