Barrage jamming was extremely effective against 1950s radars, to the point where there was some belief that the carcinotron might render ground-based radars useless, especially in the early warning radar role. By the 1960s a number of techniques had been introduced to combat barrage jamming. Frequency agile radars, which change their frequency from pulse to pulse, force the jammer spread its signal across the entire bandwidth, ensuring the signal is diluted. Combining this with extremely powerful signals and highly focused antennas allowed new radars to overpower the jammers, "burning through" the jamming. Simple techniques, like turning off the receivers when the antenna was pointed close to the jammer, allowed the radar to continue tracking other targets. The use of phased array antennas and signal processing techniques that reduced sidelobes also improved performance.
Barrage jamming was extremely effec,tive against 1950s radars, to the point where there was some belief that the carcinotron might render ground-based radars useless, especially in the early warning radar role. By the 1960s a number of techniques had been introduced to combat barrage jamming. Frequency agile radars, which change their frequency from pulse to pulse, force the jammer spread its signal across the entire bandwidth, ensuring the signal is diluted. Combining this with extremely powerful signals and highly focused antennas allowed new radars to overpower the jammers, "burning through" the jamming. Simple techniques, like turning off the receivers when the antenna was pointed close to the jammer, allowed the radar to continue tracking other targets. The use of phased array antennas and signal processing techniques that reduced sidelobes also improved performance.