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Frequency groups

It is important to identify which SPECTRAL_WINDOW_ID's are associated for calibration purposes as part of a broader frequency group. This is necessary in certain calibration applications, including multi-band VLBI fringe-fitting. Two new columns are added for this purpose: 


FREQ_GROUP 		 Int 		 (Frequency group) 		 (Reqd.) 


FREQ_GROUP_NAME 		 String 		 (Frequency group name) 		 (Reqd.)

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2004-08-28