Regulation 15 Mode S Transponder

(1)

For the purposes of paragraph 3 of Schedule 5 to the Order, the capability and functionality prescribed for Mode S Elementary Surveillance shall be that specified for a level 2 transponder in Volumes III (First Edition—July 1995) and IV (Third Edition—July 2002) of Annex 10 (Third Edition) to the Chicago Convention together with the additional functionality specified in paragraph (3).

(2)

For the purposes of paragraph 3 of Schedule 5 to the Order, the capability and functionality prescribed for Mode S Enhanced Surveillance shall be that specified for a level 2 transponder in Volumes III (First Edition—July 1995) and IV (Third Edition—July 2002) of Annex 10 (Third Edition) to the Chicago Convention together with the additional functionality specified in paragraph (3) and the additional downlinked parameters specified in paragraph (4).

(3)

This is the additional functionality referred to in paragraphs (1) and (2)—

(a)

capability to support the Interrogator Identifier (II) Code and Surveillance Identifier (SI) Code functionality;

(b)

Extended Squitter Functionality which, for this purpose, means functionality that supports Mode S Elementary Surveillance and Mode S Enhanced Surveillance to provide Automatic Dependant Surveillance—Broadcast, using unsolicited transponder broadcasts; and

(c)

ACAS Active Resolution Advisory.

(4)

These are the additional downlinked parameters referred to in paragraph (2)—

(a)

reporting of the Magnetic Heading Downlinked Aircraft Parameter;

(b)

reporting of the Indicated Airspeed Downlinked Aircraft Parameter;

(c)

reporting of the Mach Number Downlinked Aircraft Parameter;

(d)

reporting of the Vertical Rate Downlinked Aircraft Parameter;

(e)

reporting of the Roll Angle Downlinked Aircraft Parameter;

(f)

reporting of the Track Angle Rate Downlinked Aircraft Parameter;

(g)

reporting of the True Track Angle Downlinked Aircraft Parameter;

(h)

reporting of the Ground Speed Downlinked Aircraft Parameter;

(i)

reporting of the Selected Vertical Intent Downlinked Aircraft Parameter (including Barometric Pressure Setting).