The Learmonth radio spectrograph

The Learmonth radio spectrograph is located near Exmouth in Western Australia.

The following code fragment is taken from working software and describes
the format of a single sweep. Sweeps are appended to produce a dayfile.


short  int          start_freq,
                       end_freq,
                       resbw;
         char        ref_level,
                       range;
         }anal_hdr_struct;

struct  scanstruct{
               unsigned char     year;
               unsigned char     month;
               unsigned char     day;
               unsigned char     hour;
               unsigned char     min;
               unsigned char     sec;
               unsigned char     data_OK;
               unsigned char     unused;
               anal_hdr_struct   hdr[2];
               unsigned char     data[2][401];
       }scan, tmp_scan;
anal_hdr_struct  last_hdr[2];