% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 123 142 117 101 125 70 107 142 154 191 196 236 316 463 438 376 549 553 705 417 332 365 212 143 167 255 187 126 126 126 170 101 142 97 109 103 81 39 89 52 24 38 80 70 62 -23 92 53 41 64 23 52 74 65 128 83 105 65 45 87 57 70 63 74 46 77 97 87 59 46 27 73 67 40 76 78 74 -38 58 104 62 33 10 49 64 32 53 44 68 27 28 11 59 -22 8 30 44 -32 -28 -35 -28 22 -26 -17 48 40 23 45 -36 -23 -21 -37 -34 29 55 35 7 19 -26 6 -49 39 26 -36 29 24 -29 -22