New Transponder Carriage RequirementsFollowing public consultation, the revised transponder carriage requirements will come into effect on 1 January 2010 with the publication of the Air Navigation Order 2009. The revised carriage requirements will be published in UK AIP GEN 1.5 from March 2010. For information, an extract of the text can be viewed by clicking this link.
The CAA will also amend the Airspace Change Process (ACP) to allow air traffic control service providers to apply for the introduction of compulsory transponder carriage in other specific volumes of airspace.
Click here for details of the decision, which are contained within a NATMAC Letter Intent, along with the required changes to Schedule 5 of the Air Navigation Order and the Impact Assessment submitted to the Secretary of State for Transport.
To register for the Mode S Phase 1 General Exemption please complete form DAP 1901. Please note, this exemption does NOT apply to IFR flight in Notified EHS airspace, currently the London TMA.
LPSTThe CAA has been encouraging the development of a portable Low Power SSR Transponder (LPST) for use on light and very light aircraft that may experience difficulty in installing higher power transponders. In support of this work the CAA has taken a leading role in developing and sponsoring various studies into the subject. Links to LPST reports can be found under the LPST Documents heading, in the Documents section.
ContactGeneral Mode S enquiries can be submitted to mode.s@caa.co.uk.
