In the article of instability on the peak power level, duration and repetition period of a multifrequency
space-time signal, we calculated the maximum values of the errors of the parameters of the laws of
spatial-phase-frequency control. Requirements for the accuracy of the location of the phase centers of the
emitters in a cylindrical phased array antenna with pyramidal horns; it is advisable to calculate the radiation
field using single-stage and multi-stage distribution laws.
The phase centers of individual radiation sources of a cylindrical phased array antenna have been studied; they have almost no effect on the duration and period of recurrence.