Simple FM Receiver with Audio Amplifier
This guide walks you through a simple FM receiver circuit built around a BF256 FET…
Circuits
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…
Articles
Guide
radio
Reviews
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…
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
VHF Collinear J-Pole : The DIY Super J-Pole Antenna
Build a VHF Super J-Pole (collinear J-pole) antenna by stacking two half-wave elements with a…
Antenna
DIY
VHF/UHF
5/4 Wave VHF Antenna for 145 MHz Using 450-Ohm Ladder Line
Build a 5/4-wave VHF antenna for 145 MHz using 450 Ω ladder line and a…
radio
Reception
ATS Mini Web Interface: Features, Setup & Browser-Based Radio Control
Explore ATS Mini, the ESP32-based DSP radio, and ats mini web interface . Learn features,…
Articles
HF
News
LARCSet kit – Most Affordable SSB/CW Transceiver Kit Released
LARCSet is a $39 open-source 40 m SSB/CW transceiver kit from HF Signals delivering 5…
Articles
DIY
Guide
radio
Build Your Own High-Res FM Receiver: The DIY CYD 480×320 FM Radio Project
DIY ESP32-S3 CYD 480×320 FM radio with SI4732 DSP and touchscreen tuning. High-resolution Arduino receiver…
Articles
News
Reviews
Turning the NXP TEF6686 Car-Radio Chip into a Versatile Multiband Receiver]]
From Car Dash to SDR Lab: Turning the NXP TEF6686 Car-Radio Chip into a Versatile…