BALUN DE TENSÃO 1:1 NUCLEO DE AR 1.8 A 30 MHZ

The term "Balun" comes from Balanced to Unbalanced. The voltage model works like a transformer that seeks to maintain the same and opposite voltage on each antenna arm relative to ground. It does not alter the impedance (1:1), serving only to make the correct transition between the coaxial cable (unbalanced) and the antenna (balanced). [Balun PDF below] [Link to Google Drive file: https://drive.google.com/file/d/1aNk6...] ✅ Advantages of Voltage Baluns Voltage Symmetry: Ensures that both antenna arms receive the same voltage amplitude. Noise Reduction: Helps balance the system, which can reduce the pickup of local electrical noise during reception. Simple Construction: Generally easier to assemble (trifilar winding on ferrite or air core) compared to some complex current models. Static Protection: Depending on the design, it can offer a path to ground, helping to drain static electricity from the antenna. ❌ Disadvantages of Voltage Baluns Sensitivity to Imbalance: If one side of the antenna is closer to an obstacle (roof, tree) than the other, the voltage balun may "force" the voltage, but it will not prevent current from flowing through the outside of the coaxial cable. Cycle Current (CMC): It is less efficient than the Current Balun (Guanella) at blocking radio frequency returning through the cable shield. Heating: Under high SWR conditions or severe antenna imbalance, the ferrite core may saturate or heat up more quickly. 📌 Connect with the Titanium RF Channel: Subscribe for more technical tests and RF tips. Leave a like if this video helped you better understand baluns! Questions? Comment below! #AmateurRadio #RF #Balun #Antennas #TitaniumRF #VHF #HF #Electronics