The Ultimate 20m Stealth Antenna: A Window Loop Guide
Living in an HOA or apartment doesn't mean you can't get on the 20-meter band.…
Antenna
Antenna
HF
Compact 80 Meter Short Dipole Antenna for Small Spaces
This shortened 80 meter dipole antenna offers a practical solution for radio amateurs who lack…
Antenna
HF
Compact Open Sleeve Dipole Antenna for 40 and 20 Meters
This compact open sleeve dipole antenna provides efficient operation on both the 40 and 20…
Circuits
QRP
Transmitter
Building a Simple 2N2222 DSB Transmitter for Amateur Radio
This compact crystal-controlled DSB transmitter combines a 2N2222 oscillator, diode balanced modulator, and tuned RF…
News
radio
Reception
SDR
ATS Mini Firmware Now Supports LILYGO T-Embed SI4732
The ATS Mini firmware v2.34 now includes experimental support for the LILYGO T-Embed SI4732 receiver.…
Antenna
VHF/UHF
Build a 3-Element Directional Slim Jim Antenna for 2-Meters
Tired of wasting signal in every direction? This directional Slim Jim antenna design combines the…
Antenna
HF
Shortened EFHW Antenna for 80m to 10m
This shortened EFHW antenna covers 80m through 10m using a 49:1 transformer, 110µH loading coil,…
Antenna
VHF/UHF
Understanding the VHF Slingshot Antenna: A Smart VHF Solution
The VHF slingshot antenna is a compact and efficient design ideal for reliable signal transmission…
Antenna
HF
3-Band HF Antenna: A Simple, High-Performance Design
Discover how to build a reliable 3-band antenna for 40m, 20m, and 10m. This simplified…
Antenna
HF
Multiband City Windom Antenna — A Practical End-Fed HF Antenna for City Operators
The Multiband City Windom is a compact, end-fed wire antenna purpose-built for urban amateur radio…