 Soviet electronics were still fairly primitive during this period and the trials of the light cruiser "Sverdlov", which carried many of these systems, revealed that the effective range of the Rif-A surface-search radar was less than that of the Yakor and Zalp fire-control radars.There were also problems transferring data from the Giuis-2 air-search radar to the Yakor and Fut-B anti-aircraft fire-control radars, which was a serious problem when dealing with high-speed aircraft.The Giuis-2 also interfered with ultra-shortwave radio reception.