Tessco Wireless Journal April May 2014 Page 2 TESCO Wireless Journal April/May 2014

Product information and performance claims are provided by manufacturers. 2 Product information and performance claims are provided by manufacturers. 2 Product information and performance claims are provided by manufacturers. 2 TESSCO FEATURE April / May 2014 Product information and performance claims are provided by manufacturers. 2 Product information and performance claims are provided by manufacturers. 2 Product information and performance claims are provided by manufacturers. 2 and emergency medical services can be coordinated and directed. Beyond emergency situations, mobile tower platforms can support floodlights or spotlights for illuminating work areas. With a combination of lights and speakers, mobile towers offer flexible infrastructure for large sporting events or outdoor con- certs after which the tower is no longer needed and can be moved to another site. If equipped with cameras, these plat- forms can provide remote monitoring and surveillance of valuable or critical assets at unmanned facilities. Certainly, mobile communications facilities enhance law en- forcement and military field operations. Mobile towers offer a measure of re- dundancy to primary facilities. Redundancy means duplication of the primary system functions with an alternate path for critical voice, video or data signals. Public car- rier wireline and wireless communica- tions networks are designed with built-in redundancy and high reliability so when the primary path fails or is disrupted, a secondary transmission path is available instantaneously. However, if a communica- tions network is disrupted or damaged, whether by a natural disaster, an act of terror, or human error, then even the built- in redundancy may not be adequate to maintain user access to voice, data, and video services. With public networks, uninterrupted continuity is expected, and in fact, de- pended upon, for Public Safety and asset protection. So having the ability to drive a mobile tower platform to a site where it's needed and to have that site operational in less than an hour is critical to ensuring public security and safety in a catastrophic situation. Rapid restoration of wireless connections for voice, Internet access, and video allows emer- gency services to be implemented where they are most needed. This means that net- work operators must have a deep under- standing of where the infrastructure is weak and vulnerable so they can plan for an effec- tive response when disaster strikes. In the end, disaster recovery is a function of preparation that enables the speed of recovery. Mobile and portable communications towers provide for rapid restoration of critical communica- tions facilities when and where they are needed most. TESSCO offers a full line of mobile plat- forms with towers that extend to various heights from 40 feet up to 106 feet without guy wires. When fully extended, the towers can support loads at elevation up to 1,200 pounds. Depending on the application, the platform at ground level can be outfitted with racks or cabinets to house a variety of active equipment and passive gear, along with backup power. Mobile Towers Roll in Restoration and Recovery (continued from page 1) The winter of 2013-2014 was one for the record books during which many parts of the U.S. and Canada were hammered by successive waves of wintry blasts - a weather phenomenon now popularly known as a polar vortex. Even those hardy northern communi- ties normally accustomed to frigid winters received an inordinate share of extreme conditions. Such conditions bring the expected fallout - impassable roads, downed trees, wide- spread power outages - leaving hundreds and thousands of people stranded, cold, and in the dark. For first-responders who provide emergency services to those affected by such conditions, the situation is challenging and often daunting. People and businesses react differently to forecasts of impending adverse weather con- ditions. A small group invariably will discount the severity of the forecast. On the other hand, many will take the forecast to heart and start to prepare for the worst before it hap- pens. This means stocking up on supplies and "battening down the hatches," a widely used nautical term that simply means to prepare for a difficult situation. As a consequence, many grocery and hardware stores experience a requisite "run" on essential food and supplies when a storm is approaching. Such reaction will take care of the short-term need. But with weather patterns becoming harder to predict, should we be preparing for worst-case scenarios that involve abnormal or extreme conditions, and natural disasters? How do you prepare for an extended power outage that may last several days or several weeks? It's one thing for individuals and busi- nesses to plan for a storm, but how can whole communications networks prepare? Preparing for Disaster Hurricanes, snow storms, and natural disas- ters such as earthquakes, volcanic eruptions, and tsunamis have proven to be particularly hard on above ground level (AGL) network infrastructure that consists of towers, outdoor cabinets, poles, and cable lines. Although designed for outdoor use, these infrastruc- ture components are highly exposed to the elements and are vulnerable to severe wind, rain, snow and sleet. So when a disaster hits and power transmission facilities and lines go down, the potential result is a disruption in local telephone and cable service, as well as damaged or destroyed wireless base station sites. As a result, people and businesses are left in the dark, and unable to communicate with emergency services or with family out- side the affected area. Getting basic power and communica- tions services restored quickly after a disaster depends on the preparedness planning that must be conducted well in advance. Restoring Critical Communications Even before power can be restored, it is criti- cal that wireless communications are enabled for first-responders to direct and execute the rescue, recovery, and restoration operations. Consider the following checklist for critical communications disaster preparedness and recovery: Most base station sites have batteries to back up the DC power equipment used to run the radio electronics. Batteries gener- ally will last a few hours in the event of an AC power outage to the site. Periodic battery maintenance will ensure they will deliver power when it is needed. Many sites have a standby generator that will engage when the utility AC is lost. For those sites that do not have a permanently installed generator, they are often outfitted with an external plug into which a portable generator can be rolled and connected to provide needed AC power for running the site and recharging the batteries. However, if the road to the site is impassable due to downed trees and lines, then the site will eventually go off the air when the batteries deplete and the generator fuel tank runs dry. As a precaution against such occur- rences, more sites are being equipped with solar panels as a means of deriving renewable energy. Whatever the alterna- tives, site power backup and restoration planning must be considered on a site-by- site basis. New mobile tower platforms on the market can enable temporary communications facilities in disaster or emergency situ- ations. These platforms support a tower that can extend to more than 100 feet. The platforms can be towed with a heavy- duty truck and will support a variety of Be Ready Before Disaster Strikes By John Celentano, TESSCO Technologies PCTEL TowerWorx TM Mobile Tower " Getting basic power and communications services restored quickly after a disaster depends on the preparedness planning that must be conducted well in advance. '' View a video of a mobile tower platform deployment demonstration by visiting www.tessco.com/go/pctel. For more information, contact your TESSCO Account Manager or visit www.tessco.com/go/towers.

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