sac-format polezero input from file gs13z.pz
GS13-VERTICAL  MCC CALIBRATION  SAC CONVENTION  28 AUGUST 1992
    A0 =  2.5101E+04   2  RESPONSE POLES: 
  (   -4.31817,    4.25861)  (   -4.31817,   -4.25861)
     3 RESPONSE ZEROES   0 ZERO VALUES:
  (  0.,  0.)  (  0.,  0.)  (  0.,  0.)

     Frequency    Displ. Amp.         Phase
     0.0100     0.1693             1.5855        90.8453
     0.0200      1.354             1.6003        91.6908
     0.0300      4.570             1.6151        92.5366
     0.0400      10.83             1.6298        93.3829
     0.0500      21.16             1.6446        94.2300
     0.0600      36.56             1.6594        95.0779
     0.0700      58.06             1.6742        95.9269
     0.0800      86.66             1.6891        96.7771
     0.0900      123.4             1.7039        97.6287
     0.1000      169.2             1.7188        98.4818
     0.2000      1352.             1.8698       107.1339
     0.3000      4543.             2.0263       116.1004
     0.4000     1.0652E+04         2.1898       125.4681
     0.5000     2.0365E+04         2.3602       135.2323
     0.6000     3.3947E+04         2.5354       145.2694
     0.7000     5.1095E+04         2.7112       155.3412
     0.8000     7.0978E+04         2.8823       165.1427
     0.9000     9.2493E+04         3.0435       174.3811
     1.0000     1.1460E+05         3.1912       182.8444
     2.0000     3.0626E+05         3.9818       228.1413
     3.0000     4.6995E+05         4.2399       242.9293
     4.0000     6.2927E+05         4.3625       249.9542
     5.0000     7.8760E+05         4.4342       254.0636
     6.0000     9.4561E+05         4.4814       256.7661
     7.0000     1.1035E+06         4.5148       258.6810
     8.0000     1.2613E+06         4.5398       260.1097
     9.0000     1.4191E+06         4.5591       261.2172
    10.0000     1.5768E+06         4.5745       262.1010
    20.0000     3.1541E+06         4.6436       266.0593
    30.0000     4.7313E+06         4.6666       267.3740
    40.0000     6.3084E+06         4.6780       268.0308
    50.0000     7.8855E+06         4.6849       268.4247
    60.0000     9.4627E+06         4.6895       268.6873
    70.0000     1.1040E+07         4.6928       268.8749
    80.0000     1.2617E+07         4.6952       269.0155
    90.0000     1.4194E+07         4.6971       269.1249
   100.0000     1.5771E+07         4.6986       269.2125