The RF Transceiver provides the capability of a short range, reliable wireless point-to-point and point-to-multipoint RF data communications link. It can be used in a variety of data communications applications that require a simple to use invisible data link. The radio transceiver is designed to interface to a variety of host devices. These devices include computers, PDA抯, personal organizers, PLC抯, data loggers, SCADA devices and intelligent control & transducer systems. The serial data transferred over the radio link is not altered; the output serial data stream is the same as the input serial data stream. The radio transceivers provide a two-way data communications links, where each unit can accept serial data and also output serial data. The radio transceivers are fully self-contained units, requiring only an external 9 Volts to 30 Volts of DC power source or a PP3 battery to operate. The radio modules used in the radio transceivers is using the well known technology solution which have been selected to meet the requirements of unlicensed operation in the international ISM bands, and are therefore acceptable for use in many countries.