Main product parameters Electrical Specifications Gain: 6dBi Polarization: vertical polarization Frequency: 865〜868MHz頻段(歐洲標準), 902〜928MHz的(美國標準) 半功率波束寬度 (°): 垂直: 110 水平面: 120 阻抗: 50Ω Standing wave ratio: ≦ 1.5 Mechanical Specifications Maximum output power: 20W Connector: TNC公, can be customized Feeder length (可選的): 2米, 3.1米, 4.2米, 5.3米, 6.4米, 7.5米, 8.6米, 9.7m Lightning protection: DC grounding Waterproof …