ARSI Field Day and Winter Field Day are due in another 10 days. Choosing the best antenna for Field Day depends on whether you value multiband convenience (Fan
Moving beyond the basics of Software Defined Radio (SDR)—where we transition from “radio as a hardware box” to “radio as an app”—requires looking at the architectural bottlenecks and
Instead of two RF1000 toroids in the VU2EVQ linear amplifier design, I am using a single BN43-7051, which is a binocular toroid bought from VU2PTI as RF1000 was
I have nearly this situation for my 80m inverted V dipole because of mounting constraints. Height of antenna feed point is about 5.5 m from ground. Ends are
While the physics of antenna resonance can be visualized like a tuning fork, the underlying “engine” of radio theory is Complex Algebra. But you don’t need to be
The Smith Chart is the ultimate visual bridge between resonance and impedance matching. It allows you to see exactly where your antenna is “electrically” and how to move
Many radio operators use the terms Resonance and Impedance Matching interchangeably, but they describe two different electrical conditions. Confusing them can lead to misleading SWR readings, inefficient power
HDMI cables are being used widely for connecting television and computer monitors. Most televisions have several HDMI ports these days. HDMI stands for High-Definition Multimedia Interface. It is
Getting a clean signal in the modern world is a challenge. With “RF smog” from LED lights, solar inverters, and switching power supplies, the noise floor for many
