Ham Radio and Space: ISS Contacts
Ham radio and space, amateur operators have long dreamed of communicating beyond Earth. With the International Space Station (ISS), that dream became a reality. The ISS hosts an active amateur…
Information
Calling CQ
Amateur radio operators use the phrase “CQ” as an open invitation to communicate. When you call CQ, you are asking for any station listening to respond. Therefore, calling CQ is…
CAT Control and CI-V in Amateur Radio
Modern transceivers often include computer interfaces that allow operators to control and automate many functions. CAT control and CI-V are two of the most common systems used for this purpose.…
DMR Tier 1 & 2: What’s The Difference?
DMR Tier 1 & 2 is an open standard designed for professional, novice, and amateur communication. It operates using TDMA (Time Division Multiple Access), allowing two independent voice or data…
Soil Affects Antenna Performance: Learn The Difference
How soil affects antenna performance, it plays a crucial role in determining its efficiency, particularly for vertical and ground-mounted systems. Soil impacts the ground conductivity and dielectric constant, both of…
Toroid Mix for Baluns and Chokes
Toroid mix plays a critical role in the design and performance of baluns and common-mode chokes, especially in ham radio and RF applications. The key to effective performance lies in…
HF Radio Propagation: How Weather Effects Propagation
HF radio propagation relies on the ionosphere to reflect signals back to Earth. Because of this, environmental and atmospheric conditions can significantly influence signal behavior. While many factors play a…
What Is Cross Band Repeat
Certain dual-band amateur radios feature a powerful function called cross band repeat. Particularly mobile transceivers. It allows the radio to receive on one band (usually UHF or VHF) and automatically…
Single Sideband: Understanding This Mode
Single Sideband, or SSB, is a highly efficient form of amplitude modulation widely used in amateur radio, marine communication, and aviation. While AM transmits a carrier and two identical sidebands,…
The Holy Cluster: Next-Gen Ham Radio DX Spotting Tool
The Holy Cluster is a modern web-based DX cluster for amateur radio operators. It plots live worldwide spots on an interactive map, making DX (long-distance contact) hunting more intuitive than…