When the distance is more than 5 meters, it is necessary to use a large-gain plate antenna, with 26dbm RF100 module, the recognition distance can reach 12 meters. This type of antenna needs to be installed on the pole.
Antenna electrical index
| Project | Parameter |
| 频率范围 Freq Range(MHz) | 902/928 |
| 带宽(Bandwidth )MHz | 26MHz |
| 增益(Gain) | 9dbi |
| 波瓣宽度(Horizontal Beamwidth °) | Hor: 70 Vert:70 |
| 前后比(F/B Ratio) | ≧20Db |
| 驻波比(VSWR) | <1.4 |
| 阻抗(Impedance) | 50 Ω |
| 极化方式(Polarization) | Circular polarization |
| 最大功率(Max. Power) | 50W |
| 接头型号(Connector) | N头/SMA |
| 防雷保护( Lightning Protection) | Dc grounding |
| 抱杆直径（Suitable pole diameter） | 40-60cm |
Mechanical index
| 尺寸 mm(Dimension) | 260*260*45（Thickness） |
| 重量 kg（Weight0） | 0.95Kg |
| 抗风强度(Rated Wind Velocity) | 39.6 m/s |
| 反射板材料 (Reflector material) | Aluminum |
| 天线外罩材料 (Radome material) | ABS |
| 工作温度(Operating temperaturec) | -40～55℃ |
Antenna radiation pattern
Lobe width: horizontal and vertical 70°
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