#	Reading from file syncronizing with current input
#	Here, the data are read from 'file1.sia', and then
#	data from 'file2.sia' are inserted so that new records
#	are placed into ensembles with the same values of headers 'ffchan'
#	(presumably, ffchan in this case represents a combination of
#	ffid and chan)

*call	dskrd	DATA/{rec}_without_attenuation.sia
synchro	ffchan	normal	attkey	normal

*call	dskrd	DATA/{rec}_with_attenuation.sia
synchro	ffchan	normal	attkey	normal