====================================================
File description:
====================================================
--File:                   /data2/a_envoyer/2025/04/20250409_192000_extract2.dat
--File size:               44.88 Go
--size of the Header:     28708    octets
--data:                   Spectrum
--start time:             2025-04-09 19:20:00.186677
--stop  time:             2025-04-09 19:38:21.149565
--duration (min):                18.349381
--dt (msec):                  2.621440
--accumulation:           8       
--number of channels:     4       
--number of cubes:        419985  
--number of frequencies:  7168    
--central freq (MHz):      17.19
--freq echantillon (MHz): 200.00
--Bandwidth (MHz):         21.87
--first frequency (MHz):    6.25
--last frequency (MHz):    28.12