% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 97 109 92 124 93 90 124 232 134 179 288 215 221 190 210 183 149 134 151 201 172 165 112 198 99 110 124 118 115 73 97 135 118 99 75 111 74 85 89 85 76 75 94 83 41 48 54 65 56 33 44 14 30 28 43 21 32 55 39 43 31 65 61 69 69 61 64 49 35 53 34 24 42 36 33 36 4 25 30 31 34 32 2 20 5 42 25 28 7 10 -11 11 17 -17 30 18 -21 -20 -10 -30 -15 -13 17 26 -14 24 28 26 -19 12 -17 -8 10 17 31 25 22 21 -20 31 -11 -7 32 -14 -28 -15 -31 18