MFJ 934 is an antenna tuner and artificial ground system that will match any transmitter or transceiver to virtually any antenna. It has a special circuit that cancels the reactance of a ground lead or counterpoise, and reduces problems caused by RF "in the shack". The MFJ-934 tuner section uses a "T" network and covers all bands between 160 and 10 meters. This network will work with dipoles, inverted-vees, verticals, mobile whips, beams, random wires, and many other antennas. The MFJ-934 has rear panel connectors for coaxial, single wire or two wire feedlines.