UV_BASELINE /RANGE

        [CLEAN\]UV_BASELINE /FREQUENCY F1 [... [Fn]] /RANGE Min Max [TYPE]

    Indicate that channels between the First and Last defined  by  Min  Max  and
    Type  contain  line  emission and should be ignored in the baseline fitting.
    Type can be CHANNEL, VELOCITY or FREQUENCY.

    For type CHANNEL, Min and Max indicate offsets from Channel  1  and  Channel
    Nchan (the number of channels in the data set). Thus Max can be negative: it
    then  indicates  Last  = Nchan-Max. Also Min=0 and Max=0 implies loading all
    the channels.