性能指标Performance型号Model北斗收发手持机天线DY-BDTRT06P00A工作频率OperatingFrequencyBDRBDT极化方式Polarization右旋圆极化Right-HandCircularPolarization左旋圆极化Left-HandCircularPolarization增益Gain(dB)仰角Elevation90°4仰角Elevation20°≥0仰角Elevation10°≥-3方向图Pattern水平Horizontal全向Omnidirectional垂直Vertical半球Hemisphere轴比AxisRatio(dB)仰角Elevation>20°≤3驻波比VSWR≤1.5:1端口隔离度PortIsolation(dB)>25工作温度OperatingTemperature(℃)-40~+70接头形式ConnectionType***A-K外形尺寸Dimensi***(mm)52.8×52.8×17)