Transmission of DC over a physical medium requires two conductors to complete the circuit - the 'go' wire, and the 'return' wire. In the context of radio frequency transmission, coaxial cable becomes a type of transmission line with the go wire taking the form...
The success of any wireless project requires the use of high performance cables. Often overlooked, R cables can be a cause of degraded system performance.
Incorrect cable selection or poor planning can result in significant signal loss, breach regulatory standards, and even impact other wireless networks through the generation of spurious products and intermods.