% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 113 134 77 93 86 67 88 92 132 283 406 421 557 458 266 227 221 184 205 151 94 100 155 80 90 135 50 87 55 80 64 54 13 66 53 62 47 69 64 61 60 85 81 65 30 20 69 77 42 35 21 28 22 -27 2 23 -21 25 19 -17 37 -8 26 -9 -26 -27 -24 -14 -18 -31 -27 -30 -27 -23 -18 -25 -31 -6 -23 -27 -24 -12 -30 -26 -17 -31 -25 -24 -32 -6 -6 -25 7 -25 -24 -29 -25 -22 -11 -27 -31 -26 -26 -24 24 -23 -21 13 21 23 9 -19 13 -14 21 18 26 20 9 27 26 19 -23 -15 14 -8 34 28