Reverse Beacon Network: The Ultimate Guide for Ham Radio Operators

Reverse Beacon Network: The Ultimate Guide for Ham Radio Operators: Discover how the Reverse Beacon Network revolutionizes amateur radio by providing real-time signal reports. Learn how RBN works, its benefits, and how to use it

uBITX Microphone Preamplifier

uBITX Microphone Preamplifier: If you own a uBITX transceiver—whether it’s the V3, V4, or V6—you’ve likely experienced the infamous low microphone audio issue. This isn’t a defect in your particular radio; it’s a well-known characteristic across all uBITX versions. The microphone input stage simply doesn’t provide enough gain for electret microphone elements, forcing operators to speak unnaturally loud or practically yell to achieve full power output.

Bi-Square Antenna: A High-Gain design for upper HF and VHF

Bi-Square Antenna: A High-Gain design for upper HF and VHF: Build a high gain bi-square antenna for higher HF bands. Get 4dB gain over dipole on 10 meters with detailed calculations, matching solutions, operation tips.

Building HF Linear Push-Pull Amplifier with IRF510 MOSFETs

Building HF Linear Push-Pull Amplifier with IRF510 MOSFETs: Build a powerful HF Linear amplifier using IRF510 MOSFETs in push-pull configuration, covers complete circuit design, component selection, and practical tips