ÖNORM EN 303035-2 V 1.2.2

The present document specifies the technical characteristics to be provided by Terrestrial Trunked Radio (TETRA) radio and telecommunications terminal equipment, which uses the TETRA technology for Direct Mode Operation at the air interface to support the Direct Mode Operation (DMO) functionality. The present document applies at the TETRA Direct Mode Operation (DMO) Air interface of the following radio and telecommunications terminal equipment types: 1) TETRA Direct Mode Mobile Station (DM-MS); 2) TETRA Direct Mode GATEway (DM-GATE); 3) TETRA Direct Mode REPeater type 1 (DM-REP1); 4) TETRA Direct Mode REPeater type 2 (DM-REP2). In addition to the basic technical characteristics of a DM-MS required for operation with another DM-MS (MS-MS), the technical characteristics for operation with DM-GATE (MS-GW), DM-REP1 (MS-REP1) and DM-REP2 (MS-REP2) are specified. It applies to terminal equipment operating within the frequency ranges, allocated to TETRA by the ERC Decisions ERC/DEC(96)01 [30] and ERC/DEC(96)04 [31]. These radio equipment types are capable of operating in all or any part of the frequency bands given in table 1. The present document is intended to cover the provisions of Directive 1999/5/EC (R&TTE Directive) [1], article 3.2, which states that "radio equipment shall be so constructed that it effectively uses the spectrum allocated to terrestrial/space radio communications and orbital resources so as to avoid harmful interference". 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 R&TTE Directive [1] will apply to equipment within the scope of the present document. NOTE: A list of such ENs is included on the web site http://www.newapproach.org/.