Calibration in Automatic mode

In this mode CACAL first does the delay calibration using a 3-cycle average, waits for these to be implemented and then goes on to do a phase and gain calibration. Flux densities for 1934$-$638 and 0823$-$500 are defined across the ATCA observing bands so cacal can do an absolute flux calibration, for other sources the gains are equalized only (i.e., it uses the average flux). The whole process takes about 12 cycles.