% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 112 84 96 102 71 66 74 57 64 274 291 190 166 302 277 214 289 242 216 284 120 198 192 136 110 176 268 214 187 122 172 117 133 87 101 96 81 110 77 37 79 53 63 46 57 46 29 28 20 21 35 47 21 12 25 18 27 21 -17 -23 -28 7 -22 21 -9 16 6 -31 -23 4 23 27 26 10 32 -22 -9 23 -23 -26 -31 15 21 -26 -21 -23 -32 25 -5 -18 -3 -21 14 35 -22 -20 20 26 -35 37 -4 -5 -8 -13 24 -32 -15 -16 33 -30 24 -20 30 22 -27 14 -20 -33 8 -11 -11 20 -19 -23 14 37 -26 7