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 UNIT 
 
 

UNIT value
	The context UNIT will tel some other commands (mostly POINT) to 
choose the unit used. UNIT can take the values INDEX (number of 
channel) HERTZ (based on SPECW and OFFSET), PPM (HERTZ divided by 
FREQ) and SECOND (usefull only for FID). All other values are 
invalid.

see also : calib FREQ OFFSET PKLIST point SPECW

 
 UNREF 
 
 

When this command is issued, the command line will not refresh the 
current display. Typically used at the end of a command line in macr 
:
read file  unref	; read the file but does not display it
This is the inverse of REF

see also : CLEAR REF UNREF

 
 UNSET 
 
 

unset variable_name
Remove the variable variable_name  from the variable table. Note 
that no $ sign are needed.

see also : MUNSET SET tunset

 
 USWA 
 
 

USWA {Fx}
Take a complex data set in internal representation ( i.e. odd points 
real and even points imaginary), and put the real part on the left 
side, and the imaginary part on the right side of the data set. This 
is the opposite of SWA.
 

see also : FLIP FLOP REAL SWA