Portable 200 Watts Antenna Tuner 1.8 - 30Mhz
This includes dipoles, inverted vees, random wires, verticals, mobile whips, beams, and others fed by coax lines or single wire from 160 through 10 Meters.
It works continuously from 1.8 to 30 MHz. A 4:1 balun is built in for balanced lines. Measures Just 5 x 2½ x 6 inches.