% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 108 214 286 195 139 108 115 200 162 154 370 228 397 911 735 1014 903 1097 852 1066 772 818 998 547 531 409 445 450 371 320 394 264 223 261 260 240 258 260 175 172 165 159 207 120 156 137 116 112 123 92 98 72 103 119 80 75 116 73 86 67 66 76 83 47 78 41 50 31 55 54 38 83 22 58 47 40 48 54 65 65 60 50 -7 -17 31 34 12 -21 37 38 23 -30 -8 33 14 -18 26 11 35 53 41 23 27 15 -12 -11 -10 -27 -40 -23 -30 31 -33 48 -18 -17 -19 -19 16 23 -9 -29 -34 -31 -15 25 10 -28