PIPN1 DATA: FREQ,THRE(VOLTS)
     21333.3         .120000    
     17066.7         .100000    
     13653.3        6.944448E-02
     10922.7        5.787045E-02
     8738.13        2.123054E-02
     6990.50        2.547666E-02
     5592.40        3.057200E-02
     4473.92        4.402362E-02
     3579.13        1.769216E-02
     2863.31        2.123060E-02
     2290.65        4.822552E-02
     1832.52        5.787060E-02
     1466.01         .172800    
     1172.81        9.128737E-02
     938.248