What is 2 km wifi anten?

A 2km Wi-Fi antenna refers to an antenna system designed to transmit or receive Wi-Fi signals over a distance of approximately 2 kilometers (1.24 miles). Achieving this range typically requires a combination of factors, including:

  • Antenna Type and Gain: High-gain directional antennas, such as Yagi-Uda or parabolic grid antennas, are crucial for focusing the Wi-Fi signal and maximizing its reach. The higher the gain, the more focused the signal.

  • Frequency Band: The 2.4 GHz band is commonly used for Wi-Fi, but its range can be limited by interference and signal absorption. The 5 GHz band offers higher bandwidth but typically has a shorter range. Careful selection and consideration of interference is a must.

  • Line of Sight (LoS): A clear, unobstructed line of sight between the transmitting and receiving antennas is essential for optimal performance. Obstacles like buildings, trees, and hills can significantly reduce the signal strength and range.

  • Transmitter Power: Increasing the transmit power can extend the range, but it's important to comply with local regulations regarding maximum transmit power limits.

  • Receiver Sensitivity: A receiver with high sensitivity can detect weaker signals, improving the overall range and reliability of the connection.

  • Wireless Standards and Protocols: Using modern Wi-Fi standards like 802.11ac or 802.11ax (Wi-Fi 6) can improve performance and efficiency.

  • Cabling: Using high-quality, low-loss coaxial cables to connect the antennas to the wireless access points or routers is important to minimize signal degradation.

  • Environmental Factors: Weather conditions like rain and fog can affect Wi-Fi signal propagation, potentially reducing the range.