include file: ARGWVFD 28
C*    *COMMON* *FREDIR* - FREQUENCY AND DIRECTION GRID.                    ARGWVFD.2      
C                                                                          ARGWVFD.3      
     & FR, DFIM, GOM, C, DELTH, DELTR, TH, COSTH, SINTH,                   ARGWVFD.4      
C                                                                          ARGWVFD.5