"IEC 1/1-Oct Mag - dB volts (re:5.75E-007)"
      "Hz"      "Data"
        16,    38.3808
      31.5,   41.75881
        63,   45.50372
       125,   53.75616
       250,   53.31416
       500,   51.09544
      1000,   58.88121
      2000,   64.83106
      4000,   60.91985
      8000,   56.24554
     16000,   52.70892
