Radio Communication Technology Blog

Building Your Own Folded Beverage Antenna for HF Bands : Learn how to build a high-power Beverage antenna with a 41m wire. Includes 9:1 UNUN details and instructions for a 100W non-inductive termination load.

How to Receive Stunning Weather Images from Meteor-M2 Satellites : Learn to capture stunning weather images from Meteor-M2 satellites with this step-by-step LRPT setup guide using RTL-SDR and SatDump.

Getting Started with AIS: Track Ships from Your Shack with a RTL-SDR : The Automatic Identification System (AIS) is a VHF radio-based collision-avoidance protocol that virtually every commercial, passenger, and large recreational vessel in the world is required to carry. Since 2004, the International Maritime Organization (IMO) has mandated AIS transponders on all ships of 300 GT or more engaged in international voyages, all cargo ships of 500 GT or more on domestic routes, and all passenger ships regardless of size.

Radio Waves Weekly — Issue #007 : This week: 3Y0K is finally on the air from Bouvet Island — the most remote uninhabited island on Earth — and the pile-ups are epic. The Rebel DX Group is next up with a Kanton Island activation starting March 25. Plus a pocket-sized Indian SDR that does FT8 without a computer, the freshest QRP Labs kit, two wire antennas you can build this weekend, and a handful of contests and events to fill your log before spring.

FT2 Digital Mode: Latest News, Software Updates, and Ham Radio Adoption : FT2 is the fastest FT-family digital mode ever built — completing QSO in seconds. Discover its origins, Decodium vs WSJT-X Improved schism, adoption trends,

Radio Waves Weekly — Issue #006 : Welcome to Issue #006 of Radio Waves Weekly! This week: an Arduino that transmits clean SSB with 8 components, an open-hardware SDR transceiver with PureSignal TX, a garden fence turned into a stealth HF antenna, and a broadband V wire that covers every HF band without a tuner.