PRIMARY

          VIEW PRIMARY [PLANE|FIELD Kn]

    View some sub-cube of the (up to 4-D) primary Beams.

    The  2nd  argument  indicates whether VIEW shows all Fields for a given fre-
    quency plane (PLANE keyword), or all Frequency-dependent beams for  a  given
    Field.

    The 2nd and 3rd arguments are optional if the beam is only 2-D or 3-D, which
    occurs for a single field or a frequency-independent beam in Mosaics (narrow
    band approximation).