The **HG2412Y-RSP** is a high-performance **Yagi Antenna** manufactured by L-com (HyperLink brand). It is specifically designed for point-to-point directional applications in the 2.4 GHz ISM band. --- ## 1. Technical Specifications The electronic performance of this antenna is characterized by its high gain and directional focus. | Parameter | Specification | | :--- | :--- | | **Frequency Range** | 2400 - 2500 MHz (2.4 GHz Band) | | **Gain** | 12 dBi | | **Polarization** | Vertical or Horizontal | | **Horizontal Beamwidth** | 30° | | **Vertical Beamwidth** | 25° | | **Impedance** | 50 Ohm | | **Max Input Power** | 50 Watts | | **Connector Type** | RP-SMA Plug (Reverse Polarity SMA) | --- ## 2. Key Electronic Components ### A. The Driven Element The core electronic part is the **folded dipole** located at the rear of the boom. This is the only part electrically connected to the transmission line. It converts the electrical signals from the cable into electromagnetic waves. ### B. Parasitic Elements The HG2412Y-RSP uses a series of aluminum rods called "directors" and "reflectors": * **Reflector:** Located behind the driven element; it reflects the signal forward to increase gain. * **Directors:** Located in front of the driven element; they "lead" the signal in a specific direction, narrowing the beamwidth and increasing the 12 dBi gain. ### C. The Integrated Pigtail The antenna features a 12-inch low-loss coax lead. The "RSP" in the model name stands for **RP-SMA Plug**. * **Electronic Importance:** This specific connector is common in Wi-Fi equipment (routers, access points). Because it is a "Reverse Polarity" connector, the center pin configuration is swapped compared to standard SMA to comply with FCC regulations for consumer Wi-Fi gear. --- ## 3. Applications Due to its electronic characteristics, the HG2412Y-RSP is ideal for: 1. **Point-to-Point Links:** Connecting two buildings wirelessly. 2. **Long Range Wi-Fi:** Extending the reach of a 2.4GHz network far beyond a standard omni-antenna. 3. **Signal Boosting:** Improving reception in areas with high interference by focusing the "listening" area. --- ## 4. Mounting & Polarization Because it is a Yagi antenna, the orientation of the elements determines the **Polarization**: * **Vertical:** Elements are perpendicular to the ground. * **Horizontal:** Elements are parallel to the ground. * *Note:* For a link to work optimally, both the transmitting and receiving antennas must have the same polarization.