Mode S

Mode S Information

New Transponder Carriage Requirements
Following public consultation, the revised transponder carriage requirements came into effect on 1 January 2010 with the publication of the Air Navigation Order 2009.  The Revised Carriage Requirements are published in UK AIP - GEN 1.5 - Aircraft Intruments, Equipment and Flight Documents.

General Mode S enquiries can be submitted to mode.s@caa.co.uk

ICAO 24 bit Aircraft Addresses

The provision of Air Traffic Services (ATS) in an SSR Mode S environment relies on a unique ICAO 24-bit Aircraft Address (24-bit AA) for selective interrogation of individual aircraft.

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Mode S in Europe

Mode S pages of the EUROCONTROL Mode S & ACAS (MSA) Programme. Including Operational and Technical Overviews and the General Aviation VFR Briefing Room.

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Related Documents

Consultation material, such as AICs, EASA and JAA information relating. Impact assessments, & Low Power SSR Transponder (LPST) development.

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