IF radio. Some transverters are used for communications where one or more of the stations are underground, such as mines, or underwater, such as shallow-water submersibles. Energy conversion use Historically "transverter" was the name for an electromechanical device, invented in Britain in the 1920s, to produce high-voltage direct current from AC sources for efficient power distribution over long-distance lines. Modern transverters are even more versatile, and generally all solid-state. They are used to convert and combine different types of electrical power such as solar panels, batteries, wind generators, fuel cells, the grid, generators, and both DC and AC loads. By automatically analyzing and converting the power between different voltages and AC or DC, the transverter enables energy to flow between all types of devices. With the advent of the Smart Grid transverters are becoming very popular since they combine renewable energy, demand management, and community energy storage within the home or office. Transverters also locally correct for power factor, which creates significant reductions in transmission loss for the grid. References "Making Advanced Power Electronics for Sustainable Energy" by Heart Akerson "Multiband Microwave Transverters for the Rover" by Paul Wade W1GHZ "222 MHz Transverter for the FT-817" by Paul Wade W1GHZ "A Single Board No-Tuning 23-cm (1296MHz) Transverter" by Rick Campbell KK7B "A No-Tune Transverter for 2304 MHz" by Jim Davey WA8NLC "Modified Transverter for Converting SSB CB to LF for Thru-the-Earth Voice Communications" by Brian Pease W1IR "A 70 MHz transverter design with detailed description and construction details" by Bo Hansen OZ2M Amateur radio