Evolution of the ATS Mini: A Technical Deep Dive into V1 through V4
The ATS Mini series represents one of the most innovative developments in pocket-sized DSP receivers…
Articles
Guide
radio
Reviews
Circuits
DIY
radio
Reception
Build a High-Sensitivity Regenerative Receiver with 2N7000 MOSFET
The 2N7000 regenerative receiver is a classic single-transistor radio that combines simplicity with surprisingly high…
Antenna
DIY
VHF/UHF
Full Wave Loop Antenna for VHF UHF FM Radio Bands
Learn how to build a high-performance Full-Wave Loop Antenna for VHF and UHF FM radio…
Antenna
DIY
Tools
DIY Moxon Rectangle Beam Antenna for 10m, 15m, and 20m Bands
Master the DIY Moxon Rectangle Beam antenna. Detailed guide on dimensions, design, and calculations for…
Radio Waves Weekly
Radio Waves Weekly Digest — Issue #001
Welcome to the first issue of Radio Waves Weekly! This is a curated digest of…
Circuits
CW
DIY
HF
QRP
Transmitter
Mighty Mite 5W Crystal Controlled QRP CW Transmitter
The Mighty Mite 40 Meter QRP CW Transmitter is a legendary low-power Morse code transmitter…
Articles
Digital modes
Guide
HF
Tools
Getting Started with FreeDV: A Beginner’s Guide to Digital Voice on Amateur Radio
Beginner’s guide to FreeDV digital voice on HF using an SSB transceiver, computer, and sound-card…
Circuits
CW
DIY
HF
Transmitter
Building Sovina 40M Class E CW Transmitter with BS170 MOSFETs
Build the Sovina 40 m Class-E CW transmitter using BS170 MOSFETs and 74HC02 logic for…
Circuits
QRP
Transmitter
VHF/UHF
Build a Powerful FM Radio Bug Transmitter
Three-stage FM bug transmitter using BC547 audio preamp, RF oscillator/modulator, and 2N3563 power amplifier for…