Frequency: 865-868MHz; 902-928 MHz ( can be customized) Input Impedance: 50 Ohm load Antenna Connector: N female antennas connector or can be customized. Gain dBi: 12dBi VSWR: d1.3 Polarization: Linear polarization or circular polarization Bandwith: 26MHZ Front to back ratio: e18 Vertical 3.0 dB Beam Width: 35 Horizontal 3.0 dB Beam Width: 36 Dimension: 450* 450* 40mm Weight: 1.8kg Shell Material: ABS plastic