ETSO-C207a

• ED Decision 2020/011/R found in: CS-ETSO Amdt 17 - European Technical Standard Orders (Oct 2026)

#### ETSO-C207a *ED Decision 2020/011/R* ##### Aeronautical Mobile Airport Communication System (AeroMACS) **1 Applicability** This ETSO provides the requirements which aeronautical mobile airport communication system (AeroMACSs) that are designed and manufactured on or after the date of this ETSO must meet in order to be identified with the applicable ETSO marking. **2 Procedures** 2.1 General The applicable procedures are detailed in CS-ETSO, [Subpart A](#_DxCrossRefBm920220672). 2.2 Specific None. **3 Technical Conditions** 3.1 Basic 3.1.1 Minimum performance standard The applicable standards are those provided in EUROCAE ED-223, minimum operational performance standard (MOPS) for aeronautical mobile airport communication system (AeroMACS), dated October 2013. Note: AeroMACS equipment may provide access in the airport environment to one or more of the following services: air traffic services (ATS), aeronautical operational communication (AOC) including aeronautical information services and meteorological (AIS/MET) information, airline administrative communication (AAC), and airport authority communication, as well as aircraft access to system-wide information management (SWIM) services. AeroMACS AMS equipment is intended for use while on the airport surface only. Passenger information and entertainment service and passenger-owned devices are not included in this ETSO. AeroMACS is considered to be supplemental to the communication equipment required by the operational rules. AeroMACS is based on the Institute of Electrical and Electronics Engineers 802.16-2009 standard: Air interface for broadband wireless access systems and can only operate on the airport surface. 3.1.2 Environmental Standard See CS-ETSO, Subpart A, paragraph 2.1. 3.1.3 Software See CS-ETSO, Subpart A, paragraph 2.2. 3.1.4 Airborne electronic hardware See CS-ETSO, Subpart A, paragraph 2.3. 3.2 Specific None. 3.2.1 Failure Condition Classification See CS-ETSO, Subpart A, paragraph 2.4. A failure of the function defined in paragraph 3.1.1 of this ETSO that results in misleading data link communication is a minor failure condition. A loss of this function is a minor failure condition. The minor failure condition classification is based on the network protocol and/or application system layers above the AeroMACS AMS equipment to detect and annunciate errors that would result in misleading or missing ATS messages. **4 Marking** 4.1 General See CS-ETSO, Subpart A, paragraph 1.2. 4.2 Specific None. **5 Availability of Referenced Documents** See CS-ETSO, Subpart A, paragraph 3. [Amdt ETSO/12] [Amdt ETSO/16]