AIPS NRAO AIPS HELP file for CHANSEL in 31DEC18



As of Thu Apr 26 16:41:43 2018



HELP SECTION

CHANSEL
Type: Adverb  (REAL, 3 elements x 10 rows)
Use:  Standard data selection adverb, used to specify a list of
      start and stop channel numbers plus an increment to be
      averaged to form a pseudo-continuum channel.
      Up to 10 sets of channel numbers can be specified. The
      first two elements specify the start and stop channel
      numbers, the third specifies the increment within that
      range, i.e.if CHANSEL = 10,20,2 that means take every
      other channel in the range 10 - 20, so that channels
      10,12,14,16,18,20 would be averaged together.
Null Value:  0
      A null value means use all channels. A null value for the
      third element means that the increment is set to 1.
      Note that the code assumes CHANSEL(1,n) < CHANSEL(2,n) and
      CHANSEL(3,n) <= 0 means use 1.

EXPLAIN SECTION


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