The FMX1 Series FSK data transceivers are miniature cost-effective solutions for remotely controlling aerial and ground vehicles, communicating with remote sites, controlling PTZ cameras, and other serial applications with bidirectional data rates of up to 57.6 kb/s. A 16-position switch accessible through the chassis lid provides pre-programmability of up to 15 configurations. The transceivers are available with rugged aluminum chassis and military-grade connectors and are military-grade products designed and built to withstand harsh environments. Available frequency ranges are 433 to 434.8 MHz, 868 to 870 MHz, and 902 to 928 MHz with RF output power of 250 mW. They measure 1.25 x 2.5 x 0.375 in. and weigh 1.2 oz.