Giga-tronics Incorporated (Giga-tronics) includes the operations of the Giga-tronics Division and Microsource Inc. (Microsource). The Company operates through two segments: Giga-tronics Division and Microsource. Giga-tronics segment designs, manufactures and markets the Advanced Signal Generator (ASG) for the electronic warfare market and switching systems that are used in automatic testing systems primarily in aerospace, defense and telecommunications. The Company's Giga-tronics segment produces modular signal sources, up-converters, receivers and down-converters in the AXIe format covering a radio frequency (RF) range of 100 megahertz to 18 gigahertz. The end user markets for these products are divided into three segments: RADAR Target Generation, Threat simulation and Surveillance. Microsource primarily develops and manufactures Yttrium, Iron, Garnet (YIG) radio detection and ranging (RADAR) filters used in fighter jet aircraft for two prime contractors.