GMS, also known as Global Microwave Systems, is a full-service engineering and development company that has been operational since 1990. The company serves the commercial television broadcast and law enforcement industries. It offers a wide variety of products that include digital transmitters, power supplies, antennas, weather-proof housings and installation hardware. The ancillary products offered by the company include low-noise amplifiers, down converters, remote controls and encryption modules. Additionally, the company rents various equipment that include antenna systems and microwave transmitters and receivers. The company s Web site offers online order booking options for the clients. GMS is a subsidiary of The Allied Defense Group and is located in Carlsbad, Calif.