Giga-tronics Incorporated (Giga-tronics) includes the operations of the Giga-tronics Division and Microsource Inc. (Microsource), a wholly owned subsidiary. Giga-tronics Division designs, manufactures and markets a line of test and measurement equipment used in the development, test and maintenance of wireless communications products and systems, flight navigational equipment, electronic defense systems and automatic testing systems. These products are used primarily in the design, production, repair and maintenance of commercial telecommunications, radar, and electronic warfare equipment. The Company manufactures products used in test, measurement and control. The Company has two segments: Giga-tronics Division and Microsource. The Giga-tronics Division produces signal sources, generators and sweepers, and power measurement instruments. The Microsource segment develops and manufactures a line of yttrium, iron, garnet (YIG) tuned oscillators, filters and microwave synthesizers.