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APPLY /FLAG

        [CALIBRATE\]APPLY [AMPLI|DELAY|PHASE [Gain]] /FLAG [Threshold]

      Apply gain solution (in AMPLITUDE, DELAY or PHASE) and flag data with-
    out a corresponding valid gain solution.

      If the Threshold argument is present, all data with a  correction  ex-
    ceeding  that  threshold  are also flagged. This can be useful to filter
    out antennas that have unstable gains. A  threshold  of  90  degrees  in
    phase, or 1.3 in amplitude may be appropriate.

    The  optional Gain argument has no effect on the Threshold: it is always
    the gain value in the CGAINS array that is compared to the Threshold.

      USEFUL TRICK: If you forgot to flag the data while applying the  self-
    calibration  gain  solution,  you  can  still do it a posteriori without
    changing the amplitude and/or phase by using command
              APPLY MODE 0 /FLAG Threshold
where MODE is any of AMPLI, DELAY or PHASE.


Gildas manager 2023-06-01