Tessco Wireless Journal December 2014 January 2015 Page 13 TESSCO Wireless Journal December 2014-January 2015

December 2014 / January 2015 13 See TESSCO's entire product offering and your pricing on TESSCO.com or call TESSCO at 800.472.7373. www.tessco.com/go/twj INFRASTRUCTURE SOLUTIONS After you choose the radio, choose Ventev to deploy, protect, power, and improve your wireless radio network WI-FI ANTENNAS Installing Wi-Fi Access Points (APs) with integrated antennas provides uniform coverage in all directions. But for many applications, connecting external antennas to APs is essential to enabling Wi-Fi and ensuring the complete coverage and capacity you need in all areas. Choose TerraWave antennas for: Ceilings 25 feet or higher Areas where RF propogation could be affected by concrete or steel structures or natural elements (lobbies or interior public spaces with water, trees and bushes) Hallways, long corridors, aisle structures (i.e. warehouses, libraries, hospitals, and retail stores) Temperature limiting environments (i.e. freezers, test labs) High-density networks (for venues with high densities of users; stadiums, convention centers, lecture halls) For more information visit: www.Ventev.com/infra The High Density Quad Patch Antenna has a low profile and high gain and is ideal for high density venues such as lecture halls, stadiums and convention centers. TESSCO No.349502 Small form factor Omnidirectional Antenna is ideal for locations requiring decor-friendly aesthetics and high performance. TESSCO No.364146 The Omnidirectional Antenna with Rugged Enclosure is designed for use outdoors and in warehouse or manufacturing environments where it must withstand exposure to moisture and dust. TESSCO No.577629 Ensure Wi-Fi Connectivity with TerraWave Antennas. What Type of Antenna Is Best For Your Access Points? There are two types of access points; those with integrated antennas, (APs) and those with ports to connect to external anten- nas. Access points with integrated antennas exhibit omnidirectional radiation patterns and provide uniform coverage in all directions. However, APs connected to external antennas are commonly needed to provide sufficient coverage and ca- pacity in the following applications: Ceiling Heights Higher than 25 Ft . At heights greater than 25 ft., the coverage area directly below omni- directional antennas degrades to the point that multipath (signal reflec- tions) will not improve coverage. High-gain, directional antennas are needed to provide adequate cover- age and capacity below the antenna. Obstacles Affect RF Propagation In order to get coverage in areas where physical obstacles and multipath interference are preva- lent, such as building materials (concrete, steel) or natural elements (interior public spaces with water, trees and bushes) external anten- nas with higher gains than those traditionally seen in APs with inte- grated antennas may be needed. Through proper selection and placement of external antennas, coverage can be extended easily into these problematic areas. Hallways and Aisles With Spaces in Between Omnidirectional antennas, with dispersive radiation patterns, have difficulty providing the focused RF coverage needed in warehouse, library and retail aisles. External di- rectional antennas focus beamwidth between the aisles and provide ex- cellent coverage and capacity. Temperature-Limiting Areas Freezers, test labs and other cold room applications often have op- erating temperatures that exceed those recommended by the AP manufacturer. To protect valuable equipment in these applications, the AP can be placed outside of the environment and the external antenna can be placed within the environment so that wireless service is possible. High-Density Network Deployments High-density networks ensure ad- equate coverage and capacity for large concentrations of mobile de- vice users by reducing interference, which is often the cause of limited performance in these environments. By "mapping" clients into smaller, radio frequency (RF) cells of opera- tion and using external, narrow- band antennas connected to the AP, interference is minimized and avail- able spectral capacity is maximized. Visit www.ventev.com/infra. Kaelus PIM Certification January 13 - Hunt Valley, MD March 3 - Reno, NV May 19 - St. Louis, MO Fiber to the Antenna (FTTA) January 14 - Hunt Valley, MD March 4 - Reno, NV May 20 - St. Louis, MO UPCOMING TRAINING OPPORTUNITIES www.tessco.com/go/training

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