PCTEL, Inc. provides performance critical telecom solutions worldwide. It operates through two segments, RF Solutions and Connected Solutions. The RF Solutions segment develops and offers performance critical test equipment, software, and engineering services for wireless networks. It provides SeeGull scanning receivers used for indoor and drive test applications, including baseline testing, acceptance testing, competitive benchmarking, spectrum clearing, troubleshooting, and network optimization, as well as offers RF measurements to build, tune, troubleshoot, and expand commercial wireless networks. This segment also provides engineering services consisting of wireless network testing, optimization, design, integration, and consulting services for in-building distributed antenna systems and outdoor networks; and Meridian software product that translates real-time network performance data into engineering actions to optimize operator performance. The Connected Solutions segment offers antennas and site solutions support networks, including supervisory control and data acquisition for oil, gas and utilities, fleet management, industrial operations, health care, small cell and network timing deployment, defense, public safety, education, and broadband access. It provides MAXRAD and Bluewave antenna solutions consisting of GPS and GNSS products, such as mobile and indoor LTE, broadband, and LMR antennas and PIM-rated antennas for transit, in-building, and small cell applications; and performance critical mobile towers for oil and gas network applications. The company sells its products directly, as well as through test and measurement value-added resellers, distributors, and original equipment manufacturers (OEM) providers to public and private carriers, wireless infrastructure providers, wireless equipment distributors, value added resellers, and OEMs. CTEL, Inc. was founded in 1994 and is headquartered in Bloomingdale, Illinois.