In order to serve our customers better and to help customers serve themselves, we have provided Bird Electronic Brand (BEC) and TX RX Systems Brand (TX RX) Discontinued Product Manuals and Applications. Discontinued Manuals are listed by model number and a brief description. Discontinued Applications include software and firmware updates for products that are no longer manufactured at our factory facilities. Please select the Bird Electronic or TX RX Systems product brand and browse our vast technical support library.