Was Kuwait on low-power Thank you very much. Baluns such as ours that provide high levels of feedline isolation are ideal for high efficiency antennas, but should not be used on WARC bands or 15m unless power does not exceed 200-300 watts especially for FT8 and RTTY carriers. Manufacturers that claim all band usage achieve this claim by using a very poor balun that allows the coax feedline to 'load' the antenna which will consequently produce a low SWR although antenna efficiency is in the 15-25% range. It should be noted that OCFD antennas were designed for and intended for use on only even harmonics, i.e. Our beta testing showed the ability to provide excellent performance even in some very difficult and unusual installations. This combination results in a very versatile and rugged 4:1 current balun.īy utilizing a voltage balun in the first stage, the unit is able to handle most compromised installations with the 1:1 current balun providing superior RF choking, feedline isolation and excellent current balance. If you look closely at the image, you can see the coaxial wound 1:1 current balun underneath the voltage balun stacked above it. As the title indicates, this balun is a hybrid combination of a 4:1 voltage balun and a 1:1 current balun. For those who would like the combination of a 4:1 balun capable of tolerating a compromised Off Center Fed Dipole or multiband loop installation and still provide the highest possible level of performance, the model 4116 is the solution.

1 to 1 balun design