Abstract: A millimeter wave link provides a means for easily transporting multiple high speed data channels, in excess of 100 Mb/s, a distance of up to 10 km, without requiring elaborate modulators and demodulators. This invention also provides fast setup, versatility, and is portable, which makes it desirable for field use. In addition, it can be set up for long term high speed data collection in a virtually permanent environment. The unidirectional link of the present invention is intended for use in experimental data collection systems, where portability, ease of setup and high speed data transfer are required. University environments as well as independent research and development institutions can benefit significantly from its use.