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SET SUBBANDS

      CLIC\SET SUBBANDS n1 n2 ...  [/WINDOW f1 l1 f2 l2 ...]
      CLIC\SET SUBBANDS LINE|CONT
      CLIC\SET SUBBANDS ALL
      CLIC\SET SUBBANDS EACH
      CLIC\SET SUBBANDS HOR|VER
      CLIC\SET SUBBANDS Q1|Q2|Q3|Q4
      CLIC\SET SUBBANDS NBC1|NBC2

  Selects  the  subbands  for  which data will be displayed by command PLOT.
  Valid codes are continuum subbands numbers (C01, C02, ...   C08)  or  line
  subbands  numbers  (L01,  L02, ... L08). These are logical numbers, so one
  should select e.g. L01 to L04 if four correlator units were used, indepen-
  dentely  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 sub-
  bands will be L01 to L05 for the Receiver 1 scan, and L01 to L03  for  the
  Receiver 2 scan.

  Subbands  may be grouped by typing e.g. "SET SUBBANDS n1 to n2 and n3 n4".
  Here, two quantities will be plotted. The first one is either the  average
  of  subbands n1 to n2 and n3 (in time mode), or the concatenation of spec-
  tral data from subbands n1 to n2 and n3 (in  spectral  mode).  The  second
  quantity plotted is subband n4.

  SET  SUBBANDS  LINE|CONT  will switch all subbands to their line/continuum
  counterpart, e.g. L01 to L04 will be changed to C01 to C04  by  SET  SUBB-
  BANDS CONT. Done by SET X I_F

  A number of usefule shortenings are available:

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

-  SET SUBBANDS EACH will automatically select all the subbands in the first
  scan of the current index, for each command accessing the data.  The  sub-
  band  are  NOT  concatenated (equivalent to e.g.  SET SUBBANDS L01 L02 L03
  L04 L05 L06).

- SET SUBBANDS HOR|VER will automatically select (in the first scan  of  the
  current index) the subbands connected to the horizontal or vertical polar-
  ization channel (if any). The subbands are concatenated.

- SET SUBBANDS Q1|Q2|Q3|Q4 will automatically select (in the first  scan  of
  the  current  index)  the  subbands  connected to the selected quarter (if
  any). The subbands are concatenated.

- SET SUBBANDS NBC1|NBC2 will automatically select (in the first scan of the
  current index) the subbands connected to the selected narrow-band correla-
  tor input (if any). The subbands are concatenated.


  CLIC\SET SUBBANDS n1 n2 ...  /WINDOW first1 last1 first2 last2 ...

      The /WINDOW option select the first and last channels to be  used  for
      the  LINE  subbands.  There should be one couple of parameter for each
      group of subbands.

      In spectral mode, the window limits may be used to restrict  the  plot
      to a certain range, e.g.
          SET SUBBANDS L01 TO L02 /WINDOW 10 64

          will  avoid  plotting  channels 1 to 9 of each of the two subbands
      L01 and L02 (which are here combined to a single spectrum).  This  may
      be useful to flag meaningless channels at the low-frequency and at the
      high frequency ends of each spectral correlator.  Note:  this  is  now
      done automatically, see SET DROP command.

      In  time  mode,  the window limits select the data to be integrated to
      compute a single point.For example
          SET SUBBANDS L01 L02 /WINDOW 1 10 1 10 will plot  data  integrated
      from  the  first  ten  channels  of the first line subband, as a first
      quantity, and data integrated from the first 10 channels of the second
      line subband, as a second quantity.

      Note:   if  you  want  to use both continuum and line subbands, in the
      same plot  page, you should include dummy arguments in the /WINDOW op-
      tion for the continuum spectra:
          SET SUBBANDS C01 to C10 L01 to L02 /WINDOW 0 0 2 64 (two arguments
      are needed for each resulting spectrum).


Gildas manager 2011-04-01