% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 394 194 141 111 99 89 119 195 212 273 189 266 199 361 172 190 129 167 159 227 140 129 159 131 120 98 81 132 98 94 58 104 87 98 93 46 105 61 88 82 90 110 68 41 52 36 53 40 54 58 31 69 44 51 31 55 53 58 16 26 19 10 38 41 9 24 13 27 -7 23 36 18 -18 32 -15 33 -7 19 34 31 57 28 35 30 32 43 50 21 65 60 21 62 32 46 -10 59 59 -12 31 50 36 -28 -20 23 -16 -27 -33 17 -1 -27 -16 -13 -26 -20 3 23 25 30 -21 -8 -18 -4 9 -17 -25 -11 -27 -23