Tessco Wireless Journal August September 2014 Page 9 Wireless Journal August-September 2014

FEATURED SOLUTION www.tessco.com/go/twj 9 August / September 2014 The entire product offering and your pricing is on TESSCO.com or call TESSCO at 800.472.7373. INDOOR WIRELESS Industry studies show that nearly 80% of all wireless call originate and terminate inside buildings. To meet that demand, specially-designed indoor antennas deliver signals for various cellular, public safety or Wi-Fi/WLAN applications. These antennas are the business end of a distributed antenna system (DAS), a bi-directional amplifier (BDA)/signal booster, public safety radio or a Wi-Fi access point. Indoor antennas are selected based on different criteria for each application. These parameters together determine the antenna's performance and cost. Single band antennas operate in just one frequency band and are cost-effective for such applications as a single-band BDA/signal booster for cellular or public safety use, or with a Wi-Fi access point. Multiband antennas are designed to deliver multiple frequency bands and typically are used with a DAS that involves several different frequencies at the same time. SISO (Single Input-Single Output) antennas use a single antenna at the transmitter and one at the receiver, and are cost-effective for delivering limited data rates over short distances. MIMO (Multiple Input-Multiple Output) units use more than one antenna at both the transmitter and the receiver; MIMO operation delivers high data rates at long distances from the antenna, and are especially important for capacity and coverage in 3G/4G LTE applications. Passive intermodulation (PIM) interference can result from poor cable connections at the antenna. New indoor antennas right from the factory meet low PIM specifications, typically -150 dBc or lower, using N-type connectors. Indoor antennas can be mounted inconspicuously in ceiling tiles or above drop ceilings. Omni-directional antennas serve high-traffic areas such as lobbies while directional antennas focus signals along hallways or long corridors. TESSCO is Your Total Source for indoor antennas that meet a variety of cellular, public safety and Wi-Fi/WLAN applications with state-of-the-art designs from industry-leading manufacturers. We can assist your with the indoor RF design and selection of appropriate antennas for your specific requirements. To get started, contact your account manager with any questions or simply fill out the In-Building Coverage Enhancement Worksheet at www.tessco.com/go/techsupport. Making Wireless Calls from the Inside Out Indoor Antenna Selection Criteria n Single or multiband n SISO or MIMO n Low PIM (-150 dBc or less) n Gain level or range n Mounting type FEATURED MANUFACTURERS a brand

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