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File description:
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--File:                   /data2/a_envoyer/2025/10/20251002_052217_extract2.dat
--File size:               25.14 Go
--size of the Header:     40996    octets
--data:                   Spectrum
--start time:             2025-10-02 05:22:17.691571
--stop  time:             2025-10-02 05:29:29.440144
--duration (min):                7.1958096
--dt (msec):                  2.621440
--accumulation:           8       
--number of channels:     4       
--number of cubes:        164700  
--number of frequencies:  10240   
--central freq (MHz):      21.87
--freq echantillon (MHz): 200.00
--Bandwidth (MHz):         31.25
--first frequency (MHz):    6.25
--last frequency (MHz):    37.50