MFJ-926 has a very fast-tuning: initial tuning is less than 2 seconds and less than. 2 seconds tuning from memory. It has 200 Memory channels. Tunes 6 to 30 MHz with wire greater than 8 feet and tunes 1.6-30 MHz with wire greater than 27 feet. For 50 Ohm transceivers. Requires 13.8 VDC at 1.5 Amps. Sleek,sexy and compact -- measures just 91/4Wx141/4Hx3D inches. Weighs just 4 pounds. This tuner is built-to-last the elements! It is weather-sealed for outdoor or marineuse. All connections are double protected with rubber sealing, entire cabinet is specially weather sealed with internal rubber lip. Includes mounting holes with metal strap on each end for easy securing.