% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 327 146 82 71 43 63 110 88 119 74 134 343 396 201 163 143 127 137 59 65 63 106 74 62 96 60 73 81 99 17 73 82 14 35 -36 12 25 41 43 -13 -23 91 27 54 76 118 114 167 206 155 200 223 114 100 179 110 147 94 100 115 85 85 113 111 96 63 77 121 74 48 64 70 86 40 67 33 62 48 66 62 -21 59 28 56 34 51 41 63 16 31 13 44 42 9 37 39 6 -26 40 51 26 -18 2 21 43 24 -21 -16 37 -33 25 -36 -25 -17 -31 23 -22 -20 -38 36 -23 -29 -22 40 -21 -14 -30 26