% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 87 43 9 19 37 18 -22 -23 105 206 283 222 223 148 171 193 116 131 177 143 202 179 179 110 124 127 154 140 110 110 121 37 82 97 104 99 116 73 50 81 66 58 61 9 27 23 13 -33 -35 -32 -31 -14 -11 -8 -27 39 32 56 68 39 60 62 104 97 84 83 73 90 63 92 90 40 68 31 56 53 57 64 53 35 38 20 41 45 29 -8 38 -12 40 35 34 -32 -31 66 6 26 -21 22 -30 51 9 -13 -31 -23 43 36 21 -27 44 -22 28 -17 -21 -25 27 -24 -30 -31 21 -28 -44 31 -27 -16 19 -22 23 23