4:1 800 W Balun Kit

Kit includes 140-43 core, #18 Teflon/PTFE Wire and Tie Wraps required to make a broad band, 160-6M, 4:1 (200 ohm to 50 ohm) Balun rated at 800 Watts.   OCF Masters have spent years designing, building and writing about Off-Center-Fed Dipole Antennas.  Through that time, we have used many different commercial and home-brewed baluns for our antennas.  We learned a great deal about the idiosyncrasies of OCFs and the Baluns needed to make them work properly.  To start, OCF antennas are by their nature unbalanced making them particularly prone to common mode current, which causes feedline radiation. In fact, the Carolina Windom uses the feedline as part of the antenna providing some vertical radiation.  This feedline radiation is then stopped from causing chaos in the shack by placing a 1:1 Current Balun 25 feet down the coax leaving a 25-foot vertical element as part of the antenna.  But, OCF antennas are tuned for proper resonances with no feedline radiation.  For proper operation, the