SET SPW
Keywords: clic

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SET SPW

            CLIC\SET SPW CLIC\SET SPW n1 n2 ...   [/WINDOW  f1  l1  f2  l2  ...]
        [/NOSELECT]
            CLIC\SET SPW LINE|CONT
            CLIC\SET SPW ALL
            Selects  the  spectral  windows  for which data will be displayed by
        command PLOT. Valid codes are continuum spw  numbers  (C001,  C002,  ...
        C008) or line spw numbers (L001, L002, ... L008). These are logical num-
        bers, so one should select e.g. L01 to L04 if four correlator units were
        used,  independentely  from  the physical units actually used. This is a
        classical trap, especially with the old receiver system (<2007): if e.g.
        units 1 to 5 were used on Receiver 1 and units 6 to 8 on Receiver 2, the
        corresponding spw will be L01 to L05 for the Receiver 1 scan, and L01 to
        L03 for the Receiver 2 scan.

        Spectral  windows may be grouped by typing e.g. "SET SPW n1 to n2 and n3
        n4". Here, two quantities will be plotted. The first one is  either  the
        average  of  spw n1 to n2 and n3 (in time mode), or the concatenation of
        spectral data from spw n1 to n2 and n3 (in spectral  mode).  The  second
        quantity plotted is spw n4.

        SET  SPW  LINE|CONT will switch all spw to their line/continuum counter-
        part, e.g. L01 to L04 will be changed to C01 to C04  by  SET  SPW  CONT.
        Done by SET X I_F

        SET SPW n1 /NOSELECT will select spectral window n1 while keeping previ-
        ous selection mode (i.e. BB or IF selection) which allows  to  select  a
        high-spectral  resolution  spectral window for delay determination (that
        needs BB or IF selection). This will update the baseband or IF value  if
        necessary.

        A number of useful shortenings are available:

          -  SET SPW ALL will automatically select all the subbands in the first
            scan of the current index, for each command accessing the data.  The
            subbands are concatenated (equivalent to e.g.  SET SPW L01 to L06).