Microphone Preamplifier with Diode Clipper for SSB Transceivers

Microphone Preamplifier with Diode Clipper for SSB Transceivers: Learn how to build high-performance microphone preamplifier featuring a diode clipper. This guide breaks down transistor stage and 1N914 limiting mechanism

Practical guide to receiving HF weather fax WEFAX / Radiofax

Weather Facsimile—commonly known as WEFAX, HF-FAX, or Radiofax—is easily one of the most rewarding niches in the shortwave hobby. There is a certain “magic” in tuning your receiver to a scheduled frequency and watching a high-resolution synoptic chart or satellite image slowly materialize on your screen, line by line, over several minutes.

While it feels like a relic of a pre-internet era, Radiofax remains a vital, free resource for mariners and a fascinating challenge for radio enthusiasts. This guide covers everything you need to get started in 2026, from understanding the signal to troubleshooting your first decode.

Practical guide to receiving HF weather fax WEFAX / Radiofax: 

DIY 80m Magnetic Loop Antenna: A Compact Solution for Low Bands

DIY 80m Magnetic Loop Antenna: A Compact Solution for Low Bands: Learn how to build a compact 80m Magnetic Loop Antenna. Includes dimensions, capacitor specs, and tuning tips for efficient HF operation in small spaces.

sBitx v5.301 Update: New Features and Improvements Explained

sBitx v5.301 Update: New Features and Improvements Explained: Technical overview of sBitx v5.301 software update by the Radio & Electronics Hub Covers remote TX capabilities, web interface overhaul, digital mode support.