PLOT /LIMITS

    [PDBI\]PLOT LINE       [/LIMITS min max]

    [ALMA\]PLOT FREQUENCY  [/LIMITS min max]

    Selects  the  IF range (in MHz) to be plotted. This is to zoom on a spe-
    cific part of the receiver bandwidth. Only valid in LINE mode (for PDBI)
    or FREQUENCY mode (for ALMA).