SET AMPLITUDE

###
SET AMPLITUDE

            CLIC\SET AMPLITUDE [ABSOLUTE|RELATIVE] [SCALED|UNSCALED]
            [KELVIN|JANSKY] [ANTENNA|BASELINE] [RAW] [SIZED|UNSIZED]
            [SPIDX|NOSPIDX]

        This  command  controls  which scaling factor is applied to the data for
        plotting and writing in the output table, in subsequent PLOT  and  TABLE
        commands:

          -  ABSOLUTE  means  that the relative amplitude calibration is not ap-
            plied.

          - RELATIVE means that the relative amplitude  calibration,  as  deter-
            mined  with SOLVE AMPLITUDE, and stored with STORE AMPLITUDE, is ap-
            plied.

          - SCALED means that the absolute amplitude is divided  by  the  source
            flux; SCALED is only used for the command SOLVE AMPLITUDE.

          -  KELVIN|JANSKY  indicates  the  unit in which the amplitude are dis-
            played: either Kelvins (in main-beam brightness temperature) or Jan-
            skys.

        SET AMPLITUDE ABSOLUTE forces SET AMPLITUDE KELVIN since the uncalibrat-
        ed data are measured in Kelvins. With SET AMPLITUDE RELATIVE, the ampli-
        tudes are in Janskys, since a calibrator of known flux has been used for
        reference. If the default is overridden (SET AMPLITUDE  ABSOLUTE  JANSKY
        or  SET  AMPLITUDE  RELATIVE KELVIN), conversion factors (=antenna effi-
        ciencies) are taken from the scan headers; these factors may  be  deter-
        mined by SOLVE FLUX and stored by STORE FLUX.

        SET  AMPLITUDE ANTENNA|BASELINE switches between Antenna-based and Base-
        line-based amplitude calibrations.  This switch will be active for SOLVE
        AMPLITUDE  (calibration  curve determination), STORE AMPLITUDE (calibra-
        tion curve storing operation), and SET AMPLITUDE RELATIVE (application).
        Both  baseline-based  and antenna-based calibration curves may be stored
        alongside in the data header, independently of each other. Using SET AM-
        PLITUDE ANTENNA is recommended.

        SET  AMPLITUDE  RAW  allows to plot the amplitude as correlation coeffi-
        cient by dividing the amplitudes by the geometrical  average  of  system
        temperatures of the antennas consisting the considered baseline.

        SET  AMPLITUDE SIZED|UNSIZED switches on and off a correction of the am-
        plitude for source size (sources with known size are W3OH and MWC349).

        SET AMPLITUDE SPIDX|NOSPIDX switches on and off a correction of the  am-
        plitude for the source spectral index (w.r.t. the reference frequency).