DIN EN 302217-4-2017 固定无线电系统.点到点设备和天线的要求和特性.第4部分:天线(英文版本EN 302217-4 V2.1.1 (2017-05)核准本作为德国标准)
Fixed Radio Systems - Characteristics and requirements for point-to-point equipment and antennas - Part 4: Antennas (Endorsement of the English version EN 302 217-4 V2.1.1 (2017-05) as German standard)
This European Standard (EN) has been developed by the European Standardization Organization ETSI (European Telecommunication Standardization Institute) and specifies requirements in the telecommunications sector.