secondary surveillance radar (SSR)

EASA defines “secondary surveillance radar (SSR)” in one regulation. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.

‘secondary surveillance radar (SSR)’ means a surveillance radar system which uses transmitters/receivers (interrogators) and transponders;

Article 2 · Standardised European Rules of the Air (SERA) · Regulation (EU) No 923/2012 · Easy Access Rules, 26 Aug 2025 revision · Read Article 2

Defined in the same article

accuracy
advisory airspace
advisory route
aerial work
aerobatic flight
aerodrome
aerodrome control service
aerodrome control tower

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