BALUNS - Technical Presentation by VE2AZX

This resource is a technical presentation by Jacques Audet, VE2AZX, from a Radio Talk in September 2013. It covers the reasons for using baluns, different types of baluns, and methods for checking baluns with an SWR analyzer. The presentation details 1:1 voltage baluns and 4:1 voltage baluns, including their winding configurations and typical impedance ratios. It provides examples of SWR measurements for W2AU 1:1 baluns and Unadilla 4:1 baluns with 50-ohm and 200-ohm loads. The document also touches on measuring the impedance of ferrites and their use on feeders and house conductors. The target audience is amateur radio operators interested in the practical application and testing of baluns to improve antenna system performance and reduce feeder radiation. Key topics include balanced to unbalanced transformation, feeder independence, and current reduction.