This European Telecommunication Standard (ETS) covers the assessment of assessment of Trans-European Trunked Radio (TETRA) radiocommunications and ancillary equipment in respect of ElectroMagnetic Compatibility (EMC). Technical specifications related to the antenna port and emissions from the enclosure port of radio equipment are found in the related product standards for the effective use of the radio spectrum. This ETS specifies the applicable EMC tests@ the method of measurements@ the limits and the minimum performance criteria for TETRA equipment and the associated ancillary equipment. The environmental classification used in this ETS refers to the environment classification used in the Generic Standards EN 50081-1 [1]@ EN 50082-1 [2]@ except for the vehicular environment class which refers to the ISO 7637 [10]@ [11]. The EMC requirements have been selected to ensure an adequate level of compatibility for apparatus at residential@ commercial@ light industrial and vehicular environments. The levels do not cover extreme cases which may occur in any location but have a low probability of occurrence. This ETS may not cover those cases where a potential source of interference which is producing individually repeated transient phenomena or a continuous phenomena is permanently present@ e.g. a radar or broadcast site in the near vicinity. In such a case it may be necessary to use special protection applied to either the source of interference or the interfered part or both. Compliance of radio equipment to the requirements of the present document does not signify compliance to any requirements related to the use of the equipment (i.e. licensing requirements). Compliance to this ETS does not signify compliance to any safety requirements. However@ it is the responsibility of the assessor of the equipment that any observations regarding apparatus becoming dangerous or unsafe as a result of the application of the tests of ETS@ should be recorded in the test report.