Radio Communication Technology Blog

Baofeng UV-5R Mini: Compact Dual-Band Powerhouse : A technical review of the Baofeng UV-5R Mini. 5W output, Bluetooth programming, and "FT2" digital mode experiment. Is it the new speed king of ultra-portables?

Join the 8-Meter Experiment: Monitor FT8 on 40.680 MHz with WQ2XDM : 8-Meter Experiment Monitor WQ2XDM's FT8 on 40.680 MHz for 8-meter propagation research. Decode signals, submit reports, and help prove Sporadic-E paths.

FT2 Digital Mode: Speed King With Serious Growing Pains : FT2 is the fastest HF digital mode, but hams report sensitivity, timing, software, and trust issues. Detailed real‑world feedback from operators worldwide

Radio Waves Weekly — Issue #004 : This Radio Waves Weekly brings exciting developments in Reverse Beacon Network technology, antenna innovations, and major updates from the world of SDR

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

Practical guide to receiving HF weather fax WEFAX / Radiofax : Learn how to receive HF Weather Fax (WEFAX) images using SDR or shortwave radios. Step-by-step guide for radio amateurs with frequencies, software tools,

Radio Waves Weekly — Issue #003 : Sunday, February 08, 2026 Welcome to the third edition of our weekly digest! We are tracking the peak of Solar Cycle 25 and highlighting some incredible local and global engineering projects. 🔝 Top Links of the Week 1. ARRL Becomes Supporting Partner for America250 The ARRL has officially joined "America250" to celebrate the 250th anniversary

Mini Radio Pocket SI4735 Dual Core – Latest Firmware Update Brings EiBi Extensions & Power Saving Mode : New Pocket SI4735 firmware adds EiBi transmitter details, distance calculation, manual time entry and eco mode that significantly extends ESP32-S3 battery life.

sBitx v5.3: A Detailed Look at the New Software Release : A breakdown of the sBitx v5.3 release, focusing on the new touch-friendly UI, xOTA logging features, and hardware protection. The  sBitx  platform has recently received a significant software update with the release of  version 5.3 . This version represents several months of development aimed at refining the user interface, expanding digital mode capabilities, and enhancing overall system stability for the open-source transceiver.