% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 56 -17 11 31 -36 62 58 93 108 135 182 188 150 165 154 166 229 161 112 129 118 205 51 163 116 132 97 75 96 113 122 45 101 111 69 48 32 141 55 91 60 44 20 47 -38 31 16 7 -13 41 36 25 35 62 83 96 68 104 75 83 63 87 114 118 97 31 73 111 105 109 38 91 43 81 16 53 58 47 24 49 16 50 60 44 24 63 67 23 22 51 18 -22 8 20 10 -17 51 -9 27 56 -30 61 28 14 20 -24 25 -30 28 17 -19 -23 -13 -18 -32 14 -24 40 -26 -31 -21 43 -18 -35 -33 -34 -14 -35