COLLECT /FLAG

        [CALIBRATE\]COLLECT    FileFilter  MergedFile  [ReferenceAntenna]  /FLAG
    Threshold

      If more than 1 self-calibration loop is present in the selected files, the
    unstable solutions, defined as those for which the phase difference  between
    the last 2 iterations exceeds Threshold sigma, are flagged.

      Note  that this option can be used to flag solutions even if only one fre-
    quency was used (i.e. when FileFilter refers to only one file).