Almost every unit has a radar signature which consists of two attributes: Type and size.

Possible signature types:
-   Ground Units
-   Fixed Wing Aircraft
-   Rotary Wing Aircraft
-   Naval Units

Possible signature sizes:
-   HIGH
-   LOW

Radar Detection
Every unit equipped with radar can detect certain radar signatures. The Radar feature tool-tip lists what kind of radar signatures it can detect within a specified range.
-   When a neutral/hostile unit with the correct signature type and size enters your radar's range it is automatically located and shows up on the map as a radar blip.
-   The blip colour corresponds to the signature type that has been detected.

Radar systems that can detect a LOW signature of a given type can also detect its HIGH signature.
-   E.g. if a unit's radar can detect LOW Fixed Wing Aircraft signatures, it can also detect HIGH Fixed Wing Aircraft signatures.

An army that consists of a mix of units with HIGH and LOW radar signatures can be located by radar capable of detecting HIGH signatures.