CS ACNS.D.AC.040 Dual/multiple transponder installation

ED Decision 2022/008/R

(See AMC1 ACNS.D.AC.040)

If more than one transponder is installed, simultaneous operation of the transponders is prevented.

[Issue: CS-ACNS/4]

AMC1 ACNS.D.AC.040 Dual/multiple transponder installation

ED Decision 2022/008/R

When dual or multiple transponders are installed on an aircraft, it is highly recommended to use a common control interface/panel to ensure that only one transponder is active at a given time.

[Issue: CS-ACNS/4]

CS ACNS.D.AC.045 Antenna installation

ED Decision 2013/031/R

(See AMC1 ACNS.D.AC.045)

The installed antenna(s) has (have) a radiation pattern which is vertically polarised, omnidirectional in the horizontal plane, and has sufficient vertical beam width to ensure proper system operation during normal aircraft manoeuvres.

AMC1 ACNS.D.AC.045 Antenna Installation

ED Decision 2013/031/R

(a) Antenna locations recommended by the aircraft manufacturer do not need to be revalidated.

(b) Antenna performance for new locations may be validated in flight, by ground measurements or simulation modelling.