- FGNav *findByFreq( double freq, double lon, double lat, double elev );
+ FGNavRecord *findByFreq( double freq, double lon, double lat, double elev );
+
+ // Query the database for the specified frequency. It is assumed
+ // that there will be multiple stations with matching frequencies
+ // so a position must be specified. Lon and lat are in degrees,
+ // elev is in meters.
+ FGNavRecord *findByLoc( double lon, double lat, double elev );