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File description:
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--File:                   /data2/a_envoyer/2026/01/20260112_233328_extract2.dat
--File size:               2.64 Go
--size of the Header:     12324    octets
--data:                   Spectrum
--start time:             2026-01-12 23:33:28.534804
--stop  time:             2026-01-12 23:35:59.645109
--duration (min):                2.5185051
--dt (msec):                  2.621440
--accumulation:           8       
--number of channels:     4       
--number of cubes:        57645   
--number of frequencies:  3072    
--central freq (MHz):      10.94
--freq echantillon (MHz): 200.00
--Bandwidth (MHz):          9.37
--first frequency (MHz):    6.25
--last frequency (MHz):    15.62