ARC Wireless Solutions offers a boatload of wireless technology products. Its Wireless Communications Solutions division markets wireless communications equipment -- including cellular base station, mobile, cellular, conformal, and flat-panel antennas -- which it sells directly to wireless carriers and through third-party distributors. Subsidiary Starworks Wireless sells coaxial cable products for satellite television and other wireless applications. ARC still purchases cable through Starworks for its own use, but the company has shifted its focus to higher-margin antenna products, which account for the bulk of its annual revenue.

NovAtel makes Global Positioning System (GPS) receivers and related components for aerospace guidance and navigation, precision agriculture, surveying and mapping, and other applications. The company's products include GPS antennas, receiver units, and signal generators designed for use on land, sea, and in the air. NovAtel's customers have included Leica Geosystems, Beijing BDStar, and YC International. The parent company of Leica Geosystems, Hexagon, acquired NovAtel for $390 million in 2008. Based in Sweden, Hexagon provides surveying equipment and other measurement tools, as well as polymer products including gaskets.

Spectrum Signal Processing's devices and software address a spectrum of signal processing needs. The company offers signal processing subsystems and software-defined radio transceiver devices used in a variety of applications, including cellular base stations, signals intelligence, military communications, and test and measurement equipment. Spectrum discontinued its line of voice-over-packet products, which were designed for telecommunications functions. Top customers include Agilent, General Dynamics, Lockheed Martin, Raytheon, and the US Department of Defense. The company has offices in Canada, the UK, and the US. Spectrum Signal Processing is a unit of Vecima Networks.

Westell delivers the goods for communication service providers. The company's modems and routers enable high- speed data transmission between the broadband networks of communications service providers and their subscribers over standard phone lines. It also makes line protection and monitoring products, shelving, jacks, and plugs. Subsidiary Conference Plus offers audio-, video-, and Web-conferencing services. Westell markets its products in Canada and Europe, but the vast majority of its sales are made in the US. The company sells its DSL equipment directly to telecom carriers and ISPs and through distributors. AT&T and Verizon together account for more than half of sales.

China Unicom (Hong Kong) Limited has brought competition to the world's largest telecommunications market. The Chinese government set up China Unicom in 1994 as the first competitor to another government-owned telecommunications monopoly. The state-controlled company provides long- distance, broadband data, and mobile communications services in 31 provinces, cities, and other regions throughout China. It is the country's #2 mobile phone operator behind former monopoly China Mobile Communications. Subsidiary China Netcom is China's #2 provider of fixed-line communications carrier behind China Telecom. It operates primarily in the northern provinces; major cities served include Beijing and Tianjin.

Corban Technologies understands that not every business has the technical staff or know-how to keep their lines of communications open. Corban Technologies company (formerly known as SmartStop) distributes, installs, and services networking and communications equipment for businesses in the Portland, Oregon metropolitan area. It specializes in data networking, voice calling, and messaging systems. Corban also provides installation and technical support for ATM machines. Other services offered include IT consulting and maintenance services.

CEO Jim Litton capitalized on a 30-year career in the senior management of numerous electronics firms to found NavCom Technology in 1992. Every move you make, every step you take, NavCom Technology could be watching you -- if you want it to. The Deere & Company subsidiary provides wireless and Global Positioning System (GPS) communications equipment. Its GPS technology is used for land, marine, and aeronautical uses. The company's equipment is used in surveying, construction, agriculture, and mining, among other uses. It also offers engineering consulting for precise positioning, wireless communications, and robotics, as well as the StarFire Network, a satellite-based system for precision positioning.

No more hospital hide and seek. Versus Technology makes it easier to track down staff and patients in bustling health care environments with its real-time location systems -- made up of hardware, software, and infrared and radio frequency identification (RFID) technologies. The systems can be integrated within an existing IT infrastructure to pinpoint the moving locations of people, equipment, and charts. They are also used to control access, record and report events, and permit communication. Its badges and tags are worn by emergency room, nursing, and security staff and can be attached to mobile medical equipment. Founded in 1988, Versus Technology markets its products primarily in North America.

Windstream Corporation, together with its subsidiaries, provides various telecommunications services primarily in rural areas in the United States. It offers phone, high- speed Internet, and digital television services. The company also offers a range of Internet protocol based voice and data services, and advanced phone systems and equipment to businesses and government agencies. In addition, it provides various enhanced service features, including call waiting, call forwarding, caller identification, three-way calling, no-answer transfer, and voicemail. Further, the company offers other telecommunications services, including interconnection, long distance, and custom calling services. It serves residential and business customers. As of December 31, 2009, Windstream Corporation operated 55 retail stores and 2 call centers. The company is based in Little Rock, Arkansas.

Terabit hopes to build a better router (or at least cobble a better one together). The company, which is conducting research and development for the US Department of Defense (through DARPA), is developing a commercial products it calls "metarouters" that combine off-the-shelf network data routers into larger systems using its proprietary network switches and software. Based on an IP standard, metarouters provide the architecture for a scalable network that handles integrated data, voice, and video without requiring specialized hardware.

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