PRINT ' '
PRINT 'FSHIFT:  (LINE)  Calculates the freq. difference between'
PRINT 'the scans in Arrays (0) & internal ACCUM array, storing'
PRINT 'this (in chans.) in ASHIFT.'
PRINT ' ' 
PRINT '(CONTINUUM) Sets ASHIFT to zero.'
PRINT ' '
PRINT 'ASHIFT=',ASHIFT
PRINT ' ' 
