Download the MFJ-1740 Manual You get an improved 300 Watt 1/4 wave ground plane for 2 Meters that'll bring up repeaters as well or better than any 1/4 wave ground plane -- even if they cost twice as much. The improved MFJ 1/4 wave ground plane minimizes feedline radiation for more useful radiated power, reduced TVI and noise pickup by the coax shield. MFJ's FastTuneRadiator makes tuning to your favorite part of the band a snap. MFJ's low loss ceramic antenna insulator gives the maximum radiated power. Get years of dependable QSOs because the strong lightweight aluminum parts are protected from corrosion by MFJ's Permanent Molecular Bonding Technology. Mounts to any 1 to 1 1/2 inch mast with included U-bolt. MFJ-1740 is the most inexpensive way to get out a potent FM signal on 2 Meters. Mast not included.