"IEC 1/1-Oct Mag - dB volts (re:1.81E-006)"
      "Hz"      "Data"
        16,   29.50945
      31.5,   43.49333
        63,   42.70576
       125,   45.75912
       250,   40.67022
       500,   36.84174
      1000,    40.6473
      2000,   44.65686
      4000,   45.10732
      8000,     29.936
     16000,   8.585963
