I am standing next to the RF and T1 linkage rack.

Needless to say, a great deal of the technology used at W6BH is of a proprietary nature, but, to summarize, that technology uses a combination of phone lines and microwave.

Special care is given to audio quality and minimal (-35db or better) third-order products on the transmitted signal. Spectrum analysis confirms that this goal is being met under most conditions. Exceptions, if any, are usually due to an anomaly in the linkage combinations used, and are of a temporary nature. The transmitted signal is continuously monitored with a separate receiver at the control site in Newport Beach.