Radio wave propagation on Earth is influenced not only by terrestrial conditions, but also by the Sun — our closest star. Solar radiation and solar activity can dramatically change how different frequency bands behave, impacting amateur radio, aviation and maritime communications, navigation systems, and disaster communications. In this article, we explore how solar activity (sunspots,…

Working in hazardous environments comes with unique challenges. A single spark, a minor electrical fault, or an overheated component can lead to catastrophic consequences. That’s why in oil refineries, chemical plants, mines, and other explosive atmospheres, every piece of equipment — including communication devices — must be engineered for maximum safety. Enter the explosion-proof two-way…