The present document specifies technical characteristics and methods of measurements for DSB AM ground based
transmitters, receivers and transceivers operating in all or any part of the aeronautical frequency band between
225 MHz and 399,975 MHz.
The present document covers the essential requirements of article 3.2 of Directive 2014/53/EU [i.1] under the
conditions identified in annex A.
In addition to the present document, other ENs that specify technical requirements in respect of essential requirements
under other parts of article 3 of the Directive 2014/53/EU [i.1] as well as essential requirements under the Single
European Sky (SES) Interoperability Regulation No 552/2004 [i.3] and related implementing rules and/or essential
requirements under the EASA basic Regulation No 216/2008 [i.5] as amended by Regulation No 1108/2009 [i.6] may
apply to equipment within the scope of the present document.