Weather-sealed for outdoor or marine use, MFJ 926B HF automatic remote antenna tuners directly tune random-length wire or aluminum tubing antennas! MFJ 926B tuners cover the entire HF band, 1.6-30 MHz. They tune 6 to 30 MHz with wire greater than 8 ft. and tune 1.6-30 MHz with wire greater than 27 ft. The MFJ 926B tuners handle 200 watts PEP maximum with a minimum 10 watts of input power. These tuners work great at the base of your ham station antenna, due to their durable hard plastic cover and chassis with an inner rubber lip seal, which keeps the interior electronics cool and dry for many years of dependable use. Like speed? These tuners are fast, with initial tuning at less than 2 seconds and less than .2 seconds tuning from memory. The features don't stop there, with 200 memory channels and weighing in at just 4 lbs. The MFJ 926B remote automatic tuners require 13.8 Vdc at 1.5 amps and measure a sleek and compact 9 1/4 in. wide x 14 1/4 in. high x 3 in. deep. If you're in the market for durable remote tuners that will stand up to the elements, choose MFJ's 926B!