How the F-22 detects threats before they even get close

The F-22 utilises the advanced AN/APG-77 active electronically scanned array radar system to track multiple aerial targets simultaneously. This main radar array features nearly 2,000 transmitter modules that guide narrow electronic beams across the sky in fractions of a second. The system provides precise target tracking at ranges well exceeding 240 kilometres.

The fighter jet uses the highly sophisticated AN/ALR-94 passive receiver mechanism to detect enemy emissions from over 460 kilometres away. This defensive suite consists of more than 30 individual antennas seamlessly embedded into the wings and fuselage skin. It collects electronic signals passively, tracking adversaries without emitting a single trace signal.

Raw tracking data from the radar, passive warning receivers, and missile alerts are constantly funnelled into a central common integrated processor. This computing core cross-references every piece of incoming signal data to filter out static background noise. It provides the pilot with a single consolidated view of all airspace threats.

Conventional radar tracking often alerts enemy electronic sensors, but the Raptor bypasses this vulnerability with a low probability of intercept system. The onboard computer shifts the active radar frequencies more than 1,000 times every second. These rapid changes prevent enemy defense systems from locking onto the transmission source.

The intra-flight data link system enables groups of up to four Raptors to share their target tracking data completely automatically. One aircraft can fly silently with its radar off while receiving real-time threat positions from another active wingman nearby. This coordination allows the formation to execute surprise intercepts from multiple directions.