Aeroflex Holding Corp. (Aeroflex Holding) is a provider of radio frequency (RF) and microwave integrated circuits, components and systems used in the design, development and maintenance of wireless communication systems. Its solutions include microelectronic components and test and measurement equipment used by companies in the space, avionics and defense; commercial wireless communications, and medical and other markets. Its products include a range of RF, microwave and millimeter wave microelectronic components, integrated circuits (ICs), and analog and mixed-signal devices. It also manufactures a range of RF and microwave wireless radio and avionics test equipment and solutions particularly for the wireless, avionics and radio test markets. The Company operates in two segments: Aeroflex Microelectronics Solutions (AMS) and Aeroflex Test Solutions (ATS). In September 2013, the Company announced the sale of its Aeroflex Test Equipment Services (ATES) business to Trescal Limited.