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File description:
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--File:                   /data2/a_envoyer/2022/01/20220110_182858_extract2.dat
--File size:               27.15 Go
--size of the Header:     36900    octets
--data:                   Spectrum
--start time:             2022-01-10 18:28:58.922212
--stop  time:             2022-01-10 18:37:37.020991
--duration (min):                8.6349797
--dt (msec):                  2.621440
--accumulation:           8       
--number of channels:     4       
--number of cubes:        197640  
--number of frequencies:  9216    
--central freq (MHz):      20.31
--freq echantillon (MHz): 200.00
--Bandwidth (MHz):         28.12
--first frequency (MHz):    6.25
--last frequency (MHz):    34.37