; FIXRL
;---------------------------------------------------------------
;! correctes right vs left polarizations for a list of antennas
;# Task UV
;-----------------------------------------------------------------------
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;-----------------------------------------------------------------------
FIXRL     LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
FIXRL     swaps R and L polarizations for some antennas
INNAME                             Input UV file name (name)
INCLASS                            Input UV file name (class)
INSEQ             0.0     9999.0   Input UV file name (seq. #)
INDISK            0.0        9.0   Input UV file disk unit #
OUTNAME                            Output UV file name (name)
OUTCLASS                           Output UV file name (class)
OUTSEQ           -1.0     9999.0   Output UV file name (seq. #)
OUTDISK           0.0        9.0   Output UV file disk unit #.
VPARM             0.0              List of antennas to swap
DOTABLE          -1.0        1.0   >= 0 > swap SY, TY, CD tables
FQCENTER                           >= 0 -> center frequency axis
----------------------------------------------------------------
FIXRL
Task:  This task swaps the R and L polarizations for a list of
       antennas (i.e. those that were mis-wired during the particular
       data session).

       NOTE: this task does not swap polarizations in calibration
       tables (SN, CL, BP, etc etc) so it should be run before any
       calibration tasks.  They will not work correctly on swapped
       antennas anyway.
Adverbs:
  INNAME.....Input UV file name (name).      Standard defaults.
  INCLASS....Input UV file name (class).     Standard defaults.
  INSEQ......Input UV file name (seq. #).    0 => highest.
  INDISK.....Disk drive # of input UV file.  0 => any.
  OUTNAME....Output UV file name (name).     Standard defaults.
  OUTCLASS...Output UV file name (class).    Standard defaults.
  OUTSEQ.....Output UV file name (seq. #).   0 => highest unique
  OUTDISK....Disk drive # of output UV file. 0 => highest with
             space for the file.
  VPARM......List of antennas to swap - a 0 terminates the list.
  DOTABLE....>= 0 -> swap polarizations in monitor tables (SY, TY, and
             CD) only.  < 0 -> no table swap.
  FQCENTER...>  0 => Change frequency axis reference pixel to
                     Nchan / 2 + 1
             else => do not change reference pixel
----------------------------------------------------------------