UNE-EN 302454 V2.2.1:2018 Meteorological Aids (Met Aids); Radiosondes to be used in the 1 668,4 MHz to 1 690 MHz frequency range; Harmonised Standard for access to radio spectrum (Endorsed by Asociación Española de Normalización in October of 2018.)
2018UNE-EN 302454 V2.2.1:2018 Meteorological Aids (Met Aids); Radiosondes to be used in the 1 668,4 MHz to 1 690 MHz frequency range; Harmonised Standard for access to radio spectrum (Endorsed by Asociación Española de Normalización in October of 2018.)
2017UNE-EN 302454 V2.1.1:2017 Meteorological Aids (Met Aids); Radiosondes to be used in the 1 668,4 MHz to 1 690 MHz frequency range; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU (Endorsed by Asociación Española de Normalización ...