ETSO-2C122

• ED Decision 2003/10/RM found in: CS-ETSO Amdt 17 - European Technical Standard Orders (Oct 2026)

#### ETSO-2C122 *ED Decision 2003/10/RM* ##### **Devices That Prevent Blocked Channels Used in Two-Way Radio Communications Due to Simultaneous Transmissions** **1 Applicability** This ETSO gives the requirements which devices that prevent blocked channels used in two-way radio communications due to simultaneous transmissions, that are 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 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 Standards set forth in the EUROCAE document ED-68, „MOPS for Devices that prevent Simultaneous Transmissions“, dated April 1992. 3.1.2 Environmental Standard See CS-ETSO Subpart A paragraph 2.1 3.1.3 Computer Software See CS-ETSO Subpart A paragraph 2.2 3.2 Specific None **4 Marking** 4.1 General Marking is detailed in CS-ETSO Subpart A. 4.2 Specific None. **5 Availability of Referenced Document** See CS-ETSO Subpart A paragraph 3