The Complete Guide to HF SSTV: From History to Your First Transmission
Slow Scan Television is a method of transmitting still images over radio using audio frequency…
Articles
Digital modes
DIY
Guide
HF
Radio Waves Weekly
Radio Waves Weekly — Issue #004
This week brings exciting developments in Reverse Beacon Network technology, groundbreaking antenna innovations, and major…
Articles
CW
Guide
HF
Reverse Beacon Network: The Ultimate Guide for Ham Radio Operators
The Reverse Beacon Network represents one of the most significant technological advances in amateur radio…
audio
Circuits
DIY
HF
Tools
Transmitter
uBITX Microphone Preamplifier
Simple 2N3904 microphone preamplifier for uBITX V3–V6 transceivers that fixes low mic audio and restores…
Antenna
DIY
HF
VHF/UHF
Bi-Square Antenna: A High-Gain design for upper HF and VHF
Build a high gain bi-square antenna for higher HF bands. Get 4dB gain over dipole…
Circuits
CW
DIY
HF
radio
Transmitter
DIY HF Linear Push-Pull Amplifier with IRF510 MOSFETs
Learn how to build a high-performance HF Linear Push-Pull Power Amplifier using affordable IRF510 MOSFETs.…
Articles
Digital modes
Guide
HF
Reception
SDR
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…
Antenna
DIY
HF
QRP
DIY 80m Magnetic Loop Antenna: A Compact Solution for Low Bands
DIY 80 m magnetic loop antenna: 1.5 m copper tubing loop with gamma-style feed and…
HF
QRP
SDR
sBitx v5.301 Update: New Features and Improvements Explained
sBitx v5.301 update refines the v5.3 platform with FT8/FT4 stability fixes, UI polish, improved logging/UDP…
Radio Waves Weekly
Radio Waves Weekly — Issue #003
Sunday, February 08, 2026 Welcome to the third edition of our weekly digest! We are…