AIR-ANT2547V-N-HZ=: How Does This Cisco Antenna Optimize 5 GHz Networks?

What Is the AIR-ANT2547V-N-HZ=?

The ​​AIR-ANT2547V-N-HZ=​​ is a ​​5 GHz directional antenna​​ from Cisco’s Aironet portfolio, tailored for high-density wireless deployments requiring focused signal propagation. Unlike omnidirectional models, this antenna’s ​​60-degree horizontal beamwidth​​ concentrates RF energy to minimize interference and maximize throughput in environments like conference halls, auditoriums, or outdoor point-to-point links.

Core Technical Specifications

• ​​Frequency​​: Dedicated to ​​5 GHz band​​ (802.11a/n/ac).
• ​​Gain​​: ​​7 dBi​​ for extended reach without sacrificing signal clarity.
• ​​Polarization​​: Dual-slant polarization reduces multipath distortion.
• ​​Durability​​: UV-resistant casing for ​​limited outdoor use​​ (non-harsh environments).
• ​​Compatibility​​: Designed for Cisco Aironet 1600/2600/3600/2800/3800 series access points.

AIR-ANT2547V-N-HZ= vs. Omnidirectional Antennas: Use Case Breakdown

​​Scenario 1​​: Deploy this antenna in ​​long corridors​​ or outdoor bridges where directional focus prevents signal spillage. Omnidirectional antennas (e.g., AIR-ANT2450V-N=) waste energy in such setups.

​​Scenario 2​​: Its ​​7 dBi gain​​ is ideal for ​​medium-range coverage​​ (up to 150 meters indoors) with controlled radiation patterns. Higher-gain antennas (e.g., 10 dBi) may overshoot nearby clients.

Addressing Key User Questions

​​Q: Can it support 2.4 GHz devices?​​
A: No. This antenna is exclusively optimized for ​​5 GHz networks​​. For dual-band setups, pair it with a 2.4 GHz antenna.

​​Q: Is it weatherproof for permanent outdoor installation?​​
A: While UV-resistant, it lacks an IP rating for heavy rain or dust. Use Cisco’s ​​AIR-ANT2547V-N=​​ (with “-N=” suffix) for fully outdoor-rated deployments.

​​Q: How many clients can it handle simultaneously?​​
A: Depends on the access point, but directional focus typically supports ​​80-100+ clients​​ in high-density zones with minimal packet collision.

Where to Source Reliable AIR-ANT2547V-N-HZ= Units

Cisco’s licensing terms mandate purchasing through authorized channels. ​​Verify stock and pricing for AIR-ANT2547V-N-HZ= at itmall.sale​​. Counterfeit antennas often fail RF compliance tests, risking network performance penalties.

Practical Insights from Field Experience

In warehouse deployments, I’ve used the AIR-ANT2547V-N-HZ= to segment coverage zones for forklift-mounted devices and inventory scanners. Its directional precision eliminated cross-aisle interference, which omnidirectional antennas exacerbated. However, alignment is critical—even a 10-degree tilt can create dead spots. For mixed environments, combining this with a low-gain omnidirectional antenna balances coverage and capacity. Always test radiation patterns with a spectrum analyzer post-installation.