% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 219 89 92 73 51 60 73 121 80 114 205 208 158 217 134 162 224 178 192 146 136 114 136 125 121 111 151 150 176 263 138 107 94 141 98 184 86 111 119 176 155 142 105 138 129 98 97 97 59 82 93 92 111 70 59 56 61 80 79 97 80 66 69 60 61 57 37 67 32 15 33 38 -20 40 30 25 30 37 -23 -7 26 30 -15 15 11 30 28 -4 22 -16 -20 -16 -24 13 42 24 -28 -13 30 -18 23 18 -13 17 -18 -30 25 -15 -24 10 15 -29 15 -11 35 -22 32 29 26 -25 -15 11 44 -20 10 -36 -25 2