The **HG4971DP-25D-RSP** is a high-performance **Directional Dual-Polarized Dish Antenna** typically used for point-to-point wireless networking in the 4.9 GHz to 7.1 GHz frequency range. It is manufactured by L-com (HyperLink brand). --- ### Technical Specifications The following table outlines the key electronic and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Frequency Range** | 4.9 GHz to 7.1 GHz | | **Gain** | 25 dBi | | **Polarization** | Dual (Horizontal and Vertical or X-Polarized) | | **Connector Type** | RPSMA Jack (Plug) with Integrated Pigtails | | **VSWR** | < 2.0:1 | | **Front-to-Back Ratio** | ≥ 30 dB | | **Impedance** | 50 Ohms | | **Power Handling** | 50 Watts | --- ### Key Electronic Components & Design 1. **Reflector Dish**: The parabolic shape is engineered to focus the radio frequency (RF) signals into a narrow beam, which is how it achieves the high 25 dBi gain. 2. **Dual Polarization Feed**: The "DP" in the part number stands for Dual Polarized. This allows the antenna to transmit/receive data on two independent paths (Vertical and Horizontal), effectively doubling potential throughput when used with MIMO (Multiple Input Multiple Output) radios. 3. **Integrated RPSMA Pigtails**: The "RSP" suffix indicates that the antenna comes with Reverse Polarity SMA connectors. These are integrated directly into the feed horn assembly to reduce signal loss that usually occurs at connector junctions. 4. **Broadband Coverage**: Unlike standard 5 GHz antennas that stop at 5.8 GHz, this unit extends up to 7.1 GHz, making it compatible with the newer **Wi-Fi 6E** spectrum. --- ### Common Applications * **Point-to-Point (PtP) Links**: Connecting two buildings over a long distance (several miles). * **Backhaul Connections**: Providing the main data link for a remote WISP (Wireless Internet Service Provider) tower. * **Wi-Fi 6E Deployments**: Utilizing the 6 GHz band for high-capacity, low-interference wireless communication.