The MFJ-974HB is a real "Balanced Tuner" for symmetrical power lines that offers an excellent balance current. Tuning range 12 to 2000 Ω, frequency range from 1.8 to 54MHz of course incl. all the WARC bands. Max power 300W PEP SSB, 150W CW. Harmony is easy with three elements selectable, tunable, "Q" circuit for tuning efficient at high bandwidths or extreme loads. Includes large, backlit cross-needle tool (selectable 30/300W) which facilitates tuning, see SWR, power and output power back. Dimensions 19 x 15 x 20 cm.