The **HG4971DP-30DC-RSP** is a high-performance, professional-grade parabolic dish antenna manufactured by L-com (HyperLink). It is specifically designed for long-range point-to-point wireless communications in the 4.9 GHz to 7.1 GHz frequency range. --- ### ## Technical Specifications Overview The following table summarizes the primary electronic and physical characteristics of the antenna: | Feature | Specification | | :--- | :--- | | **Frequency Range** | 4.9 GHz - 7.1 GHz | | **Gain** | 30 dBi | | **Polarization** | Dual (Vertical & Horizontal or X-Pol) | | **Horizontal Beamwidth** | 5° | | **Vertical Beamwidth** | 5° | | **VSWR** | < 1.5:1 (Typical) | | **Input Impedance** | 50 Ohms | | **Max Input Power** | 100 Watts | | **Connector Type** | 2 x RPSMA Female (Reverse Polarity SMA) | --- ### ### Key Electronic Components & Design Features #### 1. Wideband Performance (4.9 - 7.1 GHz) Unlike standard 5 GHz antennas that stop at 5.8 GHz, this model covers the **WiFi 6E** spectrum and the licensed public safety bands (4.9 GHz). This makes it future-proof for high-capacity backhaul links. #### 2. Dual Polarization System The antenna features two separate feed ports (Dual Polarity). * **MIMO Support:** It allows for Multiple-Input Multiple-Output (MIMO) technology, effectively doubling the data throughput by transmitting data streams on two different planes simultaneously. * **Isolation:** Designed with high cross-polarization isolation to prevent interference between the two data streams. #### 3. Parabolic Reflector & Gain * **Focusing Power:** The 30 dBi gain is achieved through the physical curvature of the dish, which focuses the radio frequency (RF) energy into a very narrow 5-degree beam. * **Narrow Beamwidth:** The 5° beamwidth is crucial for long-distance links (often exceeding 20-30km depending on the radio) as it minimizes the "noise" picked up from surrounding signals. #### 4. RSP Connector Configuration The **"RSP"** suffix in the part number indicates **Reverse Polarity SMA** connectors. These are commonly used with commercial wireless access points and radios (like Ubiquiti, Mikrotik, or Mimosa) without needing complex adapters, reducing signal loss at the connection point. --- ### ### Ideal Applications * **Wireless Internet Service Providers (WISP):** Long-range backhaul for rural internet delivery. * **Public Safety:** 4.9 GHz band dedicated for law enforcement and emergency services. * **High-Interference Environments:** The narrow beamwidth helps bypass local RF congestion. * **6GHz Backhaul:** Utilizing the newly opened 6GHz spectrum for high-speed data transfer.