Intellitron AA-4901 49:1 Balun, 300W PEP

Upgrade your HF antenna setup with the Intellitron AA-4901 49:1 Balun. Designed specifically for End-Fed Half-Wave (EFHW) configurations, this high-efficiency impedance transformer seamlessly matches your 50-ohm coaxial feedline to the high-impedance entry point of a half-wave radiator. Whether you are building a permanent backyard base station or packing a portable QRP rig for a weekend activation, the AA-4901 ensures a low-loss transition so more of your signal gets out.

Engineered for the active ham operator, this rugged balun serves as the heart of a high-performance multi-band EFHW antenna system. Unlike traditional, bulky dipoles, a wire fed at the end presents a very high impedance that requires precision matching. The AA-4901 delivers exactly that by utilizing a dual-core toroidal transformation to safely step down high impedance to the 50-ohm requirement your transceiver expects. It is housed in a UV-stabilized, gasket-sealed enclosure that stands up to harsh weather while integrating intelligent rear heat vents and bottom drain ports to prevent moisture buildup and core saturation. With optimized coverage across the amateur bands and a layout that includes built-in eye-bolt strain reliefs and dual ceramic capacitors, this unit offers maximum capacitive balance and reliable, multi-band performance.

UPC Code: 810106912424