MODIFY PHASE

        CLIC\MODIFY  PHASE   a1  p1  [a2 p2 ...] [/IF if] [/BBAND ib] [/ALL]
    [/POLARISATION H|V|BOTH] [/SWITCH DIRECT|CROSSED]

    Modify the visibility phase for antenna a1 by d1 (unit  determined  from
    SET PHASE DEGREE|RADIANS).

    Option  /IF  or /BBAND allow to modify the delay for a given IF or base-
    band.  Option /ALL modify all spectral windows.

    Option /SWITCH allows to correct only baselines where the  antennas  are
    in the direct/crossed state.