Electrical parameters Frequency (MHz):1575.42±5MHz/1561±5MHz/1609±2MHz Gain (B):30dB±2 3dB beam width:110±10 Axial ratio (dB):<5 Polarization mode:right-handed circular polarization Internal flatness (B):<2 standing-wave ratio:2.0 Noise coefficient (B):2.0 DC voltage (V):3~5V Direct current (mA):10 Mechanical Parameters Size (mm):80*75mm Shell material:ABS Storage temperature ():-40~+85 Working temperature ():-40~+85 Environmental wind speed (Km/h):135 Environmental humidity (%):5%~95% Maximum wind speed (Km/h):200 Usage environment:outdoors Connection:N/K Pole size:100mm Material of holding pole:stainless steel