Ma Engineering is the leading supplier and installer of SSR systems worldwide.
The SSR (Secondary Surveillance Radar) system requires special data called “transponders” in air use, which responds at 1090 MHz to queries made by the radar at 1030 MHz.
In addition to the PSR system, the identity information and defense that can be obtained with the SSR system can also be obtained.
The Mode S SSR system, on the other hand, provides a one-to-one (selective_selective) interrogation of the aircraft by the radar system by using the 24-bit ICAO aircraft address allocated to the aircraft, and thus provides more information about the aircraft (such as its speed, flight direction, level to climb/descend). is a system.