The TRACER provides dual T1 transport by way of a spread spectrum microwave link for distances up to 30 miles or more depending on path engineering. System performance is determined, in part, by the engineering of the microwave link. Each end of a TRACER link is composed of two units - the baseband processor (BBP) and the radio frequency converter (RFC).The BBP is a 1-U, 19-inch rackmountable unit that provides the system electrical interfaces, user controls and indicators, and performs the spread spectrum processing for the system.