Utilizing the portability, versatility, and low cost of existing USB 1-Port VNAs and taking advantage of the convenience and ubiquity of USB connections, RNVNA allows a user access to a portable, modular multiport network analysis solution without the need for external RF switches or other hardware. Users can use just two 1-Port USB VNAs for two-port solution up to sixteen 1-Port USB VNAs for a sixteen-port network analysis solution.