Flexible deploymentThe IsoHorns 4×4 Double Horn Antenna is a high-performance antenna engineered for the ePMP 4600 radio, tailored for WISPs operating in challenging conditions. Equipped with dual horns and 4×4 MU-MIMO functionality, it can operate in full MU-MIMO mode or be configured as a split sector for greater flexibility. Its precise beam control and directivity minimize interference while enhancing gain and signal quality. Designed with a compact, modular form factor, it allows flexible deployment—whether as a split sector or a single horn setup—delivering improved spectral efficiency and scalable network performance. Split sector 4x4 Double Horn Antennas allow for easy splitting of sectors. You can deploy each horn to cover different sectors, which enables more granular control over the coverage area. This flexibility is particularly useful for optimizing network performance and managing interference in high-density areas. For instance, you can configure one horn to cover a specific direction and the other to cover a different direction, effectively doubling the capacity and reducing the risk of congestion. Sector panel antennas generally cover a wide area with a single broad beam, making them less flexible for splitting sectors. Adjustments to coverage typically require deploying additional sector antennas, which can increase complexity and cost. Single horn with 2x2 radio ePMP 4600 4x4 Double Horn Antennas can be deployed as two separate single horns if needed. This flexibility allows network operators to start with a single horn and later upgrade to a double horn setup as demand grows. This incremental approach can be cost-effective and scalable, allowing for adjustments based on actual network usage and requirements. While you can use a single sector panel antenna, it does not offer the same modularity or ease of upgrade to a more focused or split-sector configuration without adding more antennas. Two 4x4 Double Horn Antennas When paired with the ePMP 4500c, two IsoHorns 4×4 Double Horn Antennas can be deployed together to create an 8×8 MU-MIMO configuration. This theoretically maximizes spatial multiplexing, enabling higher capacity and spectral efficiency to support more subscribers within the same channel. By combining dual 4×4 antennas, operators might benefit from expanded coverage, stronger interference rejection through precise horn directivity, and improved overall throughput. This 8×8 configuration might be particularly well-suited for high-density WISP deployments that demand scalable performance and consistent reliability in challenging RF environments. Typical Use CasesThe 4x4 Double Horn is designed for high-capacity 5 GHz and 6 GHz PtMP networks that require the performance advantages of 4x4 MIMO technology. Its controlled 90° coverage and excellent noise rejection help create cleaner sectors, allowing wireless operators to deliver higher throughput, serve more subscribers, and maintain reliable connections in challenging RF environments. It is particularly well suited for WISP access points, multi-sector tower sites, and next-generation Wi-Fi 6E and Wi-Fi 7 deployments. Who Is the 4X4 Double Horn Designed For? • Wireless Internet Service Providers (WISPs) deploying high-capacity 5 GHz and 6 GHz PtMP networks. • Operators using 4x4 MU-MIMO access points such as the Cambium ePMP 4600. • Networks seeking to serve more subscribers per access point while maintaining strong performance. • WISPs operating in congested RF environments where interference mitigation is critical. • Providers upgrading to 6 GHz, Wi-Fi 6E, and Wi-Fi 7 technologies. • Tower owners and network engineers focused on maximizing spectrum efficiency and network capacity. 4x4 Point-to-Multipoint (PtMP) Access Points The primary use case is pairing with 4x4 MIMO access points such as: • Cambium ePMP 3000L • Cambium ePMP 4500L • Cambium ePMP 4600L • Ubiquiti Wave MLO5 • Ubiquiti Wave MLO6 • Ubiquiti LTU Rocket • Ubiquiti Rocket Prism 5AC Gen2 By providing four antenna ports with horn antenna characteristics, the 4x4 Double Horn allows these radios to benefit from superior noise rejection, controlled coverage, and improved sector performance. This helps operators maintain cleaner RF environments, support higher modulation rates, and serve more subscribers from a single access point. High-Density WISP Sectors The 4x4 Double Horn is ideal for wireless ISPs serving a large number of subscribers from a single tower or access point. Benefits include reduced interference from neighboring sectors, better signal-to-noise ratio (SNR), higher modulation rates, more subscribers per access point, and improved airtime efficiency. These advantages help operators increase network capacity while maintaining reliable service quality. 5 GHz and 6 GHz Wideband Networks Designed for wideband operation, the 4x4 Double Horn supports: • 5 GHz fixed wireless networks • 6 GHz wireless networks • Wi-Fi 6E deployments • Wi-Fi 7 Multi-Link Operation (MLO) This flexibility allows operators to upgrade radios and technologies without replacing their antenna infrastructure. Interference-Limited Towers The 4x4 Double Horn is particularly effective in environments where multiple sectors are installed on the same tower, competing WISPs operate nearby, the noise floor is high, or spectrum reuse is important. Its horn design helps reject unwanted off-axis signals, resulting in a cleaner RF environment and more reliable wireless links. Rural and Suburban Coverage Sectors The 90° coverage pattern makes the 4x4 Double Horn well suited for: • Rural broadband sectors • Small-town wireless networks • Suburban residential coverage • Campus and business park deployments This combination of wide coverage and excellent interference rejection helps operators deliver consistent performance across their service area. Designed to Solve Real-World WISP Challenges The 4X4 Double Horn helps WISPs solve some of the most common challenges in high-capacity PtMP networks, including interference, sector congestion, limited access point capacity, poor spectrum reuse, and future migration to 6 GHz. Its controlled horn coverage and 4x4 MU-MIMO support enable cleaner RF performance, higher throughput, more subscribers per AP, and flexible network growth. Frequently Asked QuestionsGet quick answers to common questions about the 4x4 Double Horn's features, compatibility, installation, and performance benefits. What is the 4x4 Double Horn designed for? The 4x4 Double Horn is designed for high-capacity 5 GHz and 6 GHz point-to-multipoint (PtMP) networks. It is optimized for 4x4 MU-MIMO access points and helps improve network capacity, spectral efficiency, and interference rejection in challenging RF environments. What frequency range does the 4x4 Double Horn support? The antenna operates across 4.9 GHz to 7.2 GHz, supporting traditional 5 GHz deployments as well as newer 6 GHz, Wi-Fi 6E, and Wi-Fi 7 applications. What coverage does the antenna provide? The 4x4 Double Horn provides a 90° sector coverage pattern, making it suitable for PtMP access point deployments requiring controlled sector coverage and strong interference rejection. What are the benefits of a horn antenna compared to a traditional sector antenna? Horn antennas provide more controlled beam patterns, lower sidelobes, and better noise rejection. This helps reduce interference, improve signal quality, and maintain higher throughput in congested wireless environments. Can the 4x4 Double Horn be used as two separate sectors? Yes. Each horn can be deployed independently, allowing operators to split coverage into two separate sectors for more granular network design and capacity planning. Does the 4x4 Double Horn support MU-MIMO operation? Yes. The antenna is designed for 4x4 MU-MIMO deployments and can operate with compatible 4x4 access points to increase network capacity and improve overall spectral efficiency. Can I start with one horn and upgrade later? Yes. The modular design allows operators to deploy a single horn initially and later expand to a full double-horn configuration as subscriber demand grows. Can two 4x4 Double Horns be combined with an ePMP 4500c? Yes. Two 4x4 Double Horn antennas can be deployed with the Cambium ePMP 4500c to create an 8x8 MU-MIMO sector, increasing capacity and supporting larger subscriber counts. How does the 4x4 Double Horn help serve more subscribers? Its controlled beam pattern, high gain, and excellent interference rejection help maintain stronger signal quality and higher modulation rates across the sector, allowing more subscribers to share the same access point efficiently. What is the antenna gain? The 4x4 Double Horn provides 15–18 dBi of gain across its operating frequency range. Is the antenna suitable for harsh outdoor environments? Yes. The antenna is IP67-rated and designed for outdoor deployment in demanding weather conditions. What connectors does the antenna use? The antenna includes RP-SMA male pigtails and ships with 0.5-meter RP-SMA extension cables for easy radio integration. Who should use the 4x4 Double Horn? The 4x4 Double Horn is ideal for: • WISPs deploying high-capacity PtMP networks • Operators upgrading to 6 GHz infrastructure • Networks using Cambium ePMP 4600 access points • High-density subscriber environments • Sites affected by RF congestion and interference