Dynamic cross-spectra of the interferometric response in the form of even (a) and odd (b) parts from radio emission of Cas A observed by two GURT subarrays on August 17, 2019. The recording of Cas A is limited at the beginning, since the time difference between the culminations of Cyg A and Cas A is about 3.5 hours, and Cyg A is observed earlier than Cas A. Therefore, the switching from one radio source to another occurs approximately in the middle of each observation session.