PIPN1 DATA: FREQ,THRE(VOLTS)
     26666.7         .298598    
     21333.3        9.128740E-02
     17066.7        2.790833E-02
     13653.3        1.615070E-02
     10922.7        1.121580E-02
     8738.13        1.023860E-02
     6990.50        1.228630E-02
     5592.40        1.474353E-02
     4473.92        3.668660E-02
     3579.13        6.339431E-02
     2863.31        7.607320E-02
     2290.65        4.822580E-02
     1832.52        8.333391E-02
     1466.01        7.607311E-02
     1172.81        4.822563E-02
     938.248        7.607300E-02
     750.599        5.787070E-02
     600.479        9.128743E-02
     480.383         .327099    
     384.306         .471023    
     307.445         .976711