Column fields are separated by vertical bars.

Column number:		Description:

      1			Station Call sign.
      2			Source of data.
      3			Latitude in integer seconds.
      4			Longitude in integer seconds.
      5			Frequency in MHz.
      6			City.
      7			State.
      8			ERP in dBK.
      9			Transmitting site elevation in meters.
     10			Transmitting antenna heigth above ground in meters.
     11			Transmitting antenna heigth above average terain.
     12			Azimuth in degrees.
     13			Date.
     14			Time.
     15			Distance in km
     16			Receiving site elevation in meters.  This value is -999
			when not available.
     17			Receiving antenna heigth above ground in meters.
     18			Median field strength in dBu normalized for 1kW ERP.
			This value is -999.9 when not valid.