AIPS HELP file for REFREQ in 31DEC25

As of Wed Mar 26 14:33:25 2025

HELP SECTION

REFREQ
Type:  Adverb  (Scalar)
Use:   Specifies the frequency to be used for the reference
Null value:  0 -> found from the data
Tasks:
   HOLOG....Read & process holography visibility data to telescope
            images.   REFREQ is the reference in GHz.
   LISPX....Fits spectral indexes to a list of spectra, allows
            interactive edit.
   SETFC....Makes a BOXFILE for input to IMAGR, recommends cell and
            image sizes.  REFREQ is the reference in GHz when it
            recommends CELLSIZE, IMSIZE.
   SOUSP....Fits source spectral index from SU table or adverbs.
            REFREQ specifies the reference in GHz, 0 -> 1 GHz,
            < 0 -> data header frequency
   SPIXR....Fits spectral indexes to each row of an image incl
            curvature.  REFREQ specifies the reference in GHz,
            0 -> 1 GHz, < 0 -> data header frequency
   SPXMD....Adds images of model objects to image cubes in spectral
            index.
   TVSPX....Fits spectral indexes to each image row, allows
            interactive edit.

EXPLAIN SECTION