S-300's phased array radar, world's first operational PESA in 1978

[Yongpeng Sun-Tastaufen]

Research yourself kid PESA is only receive not. 2 emit and AESA more accurate because its transmit and receive same signals to give more accurate pictures of the target than a PESA and PESA is simple tech as compare to AESA tech, @undertakerwwefan

Nope. The only difference is AESA every module emit at its own frequency. In PESA every module emits at the same frequency. Both are ESA. There is no mechanism one is more accurate than another.

 

[Ultima Thule]

Nope. The only difference is AESA every module emit at its own frequency. In PESA every module emits at the same frequency. Both are ESA. There is no mechanism one is more accurate than another.

No more farting please just googles AESA vs PESA, then you get your answer and do you know what PESA stand for @undertakerwwefan