virtual SimObjectType* Exec( SimObjectType* targetList );

        // State control functions
        virtual void RangeStep( int cmd )                       { NewRange( (cmd>0) ? rangeNM*2.0f: rangeNM*0.5f); };

        virtual void StepAAmode( void )                         { mode = AA; }; // Enter AA mode
        virtual void StepAGmode( void )                         { mode = GM; }; // Enter AG mode
   virtual void SetMode (RadarMode cmd);
        virtual int   IsAG (void);              // Is radar in A/G mode
        virtual void  GetAGCenter (float* x, float* y); // Center of radar ground search

  protected:
        float                   rangeNM;                        // How far are we looking in NM
        float                   rangeFT;                        // How far are we looking in FT for convienience
        float                   invRangeFT;                     // 1/how far we're looking for convienience

  protected:
        void NewRange( float rangeInNM );