Passive radar
Surveillance that exploits existing ambient signals to detect targets without emitting.
Passive radar detects and tracks targets by exploiting existing ambient radio signals rather than transmitting its own. Because it never emits, there is nothing for an adversary to locate or jam, making it a low-observable surveillance layer. It integrates into wider air and coastal picture-compilation without tying the operator to a single-power sensor ecosystem.
How this plays out in programmes
Passive radar earns its place in a programme because it watches without being watched. For a defence buyer, Unstrat integrates passive radar as a low-observable layer in the air and coastal picture: because it never emits, there is nothing for an adversary to locate or jam, which protects the surveillance capability itself and the forces relying on it. The advantage is persistent coverage that does not give away its own position, a quiet edge in a contested spectrum. Sourcing from independent manufacturers means the operator is not tied to a single power's sensor ecosystem or its release conditions. As the accountable single channel, Unstrat fits passive radar into the wider picture-compilation rather than selling a box in isolation. Localisation arrangements are scoped per programme, subject to export controls and end-use approvals.