DS EN 303035-1:2005 Terrestrial Trunked Radio (Tetra) - Harmonized En For Tetra Equipment Covering Essential Requirements Under Article 3.2 Of The R&Tte Directive - Part 1: Voice Plus Data (V+D) Defines 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