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The Amplitude Calibrator is too weak for Pointings

In this case, only the cross-correlations are used. Don't forget to apply the SOLVE FLUX command only on a short time interval where the weather conditions: H2O vapor contents and phase noise are quite similar.

   - Select the RF bandpass done usually after a FOCUS and a POINTING 
   - Select the adjacent Phase Calibrator(s)- it should follow a POINTING

	CLIC\SET RF ON FREQ
	CLIC\SET PHASE RELATIVE
	CLIC\SET BAND DSB
	CLIC\SET SUB L01 TO L06
	CLIC\SET SOURCE Phase_Calib RF_Calib
	CLIC\SET FLUX RF_Calib xx.x 	!see flux reports
	CLIC\SET PROC CORR
	CLIC\FIND /SCAN x y	!After a pointing on RF_Calib
	CLIC\FIND APPEND /SCAN v w	!After a pointing on Phase_Calib
	CLIC\SOLVE FLUX

When the flux density of the amplitude calibrator is known, update the CLIC calibration procedure (described in the ``Calibration Cookbook'') as follows:

	CLIC\SET SOURCE Phase_Calib RF_CAlib
	CLIC\SET PROC POINT CORR
	CLIC\SET FLUX Phase_Calib xx.x
	CLIC\SET FLUX RF_Calib yy.y
	CLIC\FIND 
	CLIC\STORE FLUX (On all cross-correlations)
Now you can proceed to the standard Amplitude Calibration using cross-correlations on the Amplitude Calibrator (see ``Calibration Cookbook'').



Gildas manager
2002-02-04