% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 200 127 182 128 110 76 104 96 126 96 289 173 214 170 205 204 134 120 174 95 75 127 123 114 109 90 168 71 120 151 151 95 86 94 98 118 52 110 69 63 66 83 49 72 94 76 37 53 70 55 46 90 51 84 80 76 66 38 73 88 89 92 93 77 48 49 46 48 54 35 76 49 39 51 35 42 86 55 62 67 60 32 47 30 27 44 47 22 34 39 37 11 14 43 -20 22 18 46 -15 47 50 -19 -24 35 29 19 34 15 13 -28 -24 -33 -10 10 -29 -20 -24 7 -16 19 37 -20 -32 -24 -10 11 -19 4