; BLOCKING
;---------------------------------------------------------------
;! specifies blocking factor to use on e.g. tape records
;# ADVERB TAPE
;-----------------------------------------------------------------------
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;-----------------------------------------------------------------------
;---------------------------------------------------------------
BLOCKING  LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
----------------------------------------------------------------
BLOCKING
Type: Adverb  (Real)
Use:  Used to specify the blocking factor to be used by a task.
      the FITS format on magnetic tape allowed blocking factors from 1
      through 10.  Tapes are an obsolete concept so this adverb is now
      meaningless.
Null value: 0 => 10
Tasks:
   FITAB......Writes images / uv data w extensions to tape in FITS
              format.  UV data are written in table form.
   FITTP   ...Writes uv or image data followed by any table data
              in FITS format on tape or disk.  UV data are written in
              random groups form.
Procedures:
   FITDISK....Writes images / uv data w extensions to disk in FITS
              format.
   WRTDISK....Writes images / uv data w extensions to tape in FITS
              format.
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