Simple 80 m CW transmitter using a 3.58 MHz ceramic resonator for frequency stability and MOSFET power stage — ideal first HF QRP build for beginners
Author: Prabakaran
Build Your Own 90MHz Crystal Controlled FM Transmitter
A crystal controlled FM transmitter is a radio frequency (RF) circuit that uses a quartz crystal oscillator to generate a stable, precise frequency for FM radio transmission. Unlike simple LC oscillator circuits, crystal-controlled transmitters offer superior frequency stability and accuracy, making them ideal for applications requiring consistent performance.
Build a Simple FM Band Transmitter Circuit
Are you interested in radio electronics? This simple FM band transmitter circuit offers an excellent starting point for beginners and hobbyists. You can build this transmitter using common electronic components and start broadcasting on the FM band.
ATS Mini vs ATS20+ Technical Comparison: Si4732 Limitations Exposed
Explore alternative firmware options for the ATS-Mini DSP radio, including G8PTN, ESP32-SI4732, and Goshante builds. Unlock enhanced usability, advanced DSP features, and customization beyond the stock firmware
Alternative Firmwares for ATS Mini Radio: A Technical Guide
Explore alternative firmware options for the ATS-Mini DSP radio, including G8PTN, ESP32-SI4732, and Goshante builds. Unlock enhanced usability, advanced DSP features, and customization beyond the stock firmware.
Build Your Own Commando AM Transmitter
Build the Commando AM transmitter — a crystal-controlled three-transistor AM circuit with oscillator, buffer, and RF power stages delivering stable modulation for HF experimentation
ATS Mini Radio Wi-Fi Configuration for Automatic EiBi Schedule Updates
Optimise your ATS Mini Radio Wi-Fi, Learn to configure Wi-Fi & download the EiBi shortwave schedule for effortless, updated shortwave listening.
HydraSDR RFOne: A Technical Overview and Comparison with Airspy R2
The Software Defined Radio (SDR) landscape has recently been joined by the HydraSDR RFOne, a new receiver sparking interest among amateur radio and SDR enthusiasts. Developed by Benjamin Vernoux, previously involved with the Airspy R2 project, the HydraSDR shares foundational design elements with the well-known Airspy R2. Its creator highlights “Enhanced PCB layout and RF […]
TL081 Speech Processor for HF Rigs
The main goal of TL081 Speech Processor circuit is to boost, shape and process your voice signal before sending it to the radio transmitter
Build Your Own 80M CW Transmitter from Scratch
Learn to build a simple 80M CW transmitter with crystal oscillator and parallel power amplifier. Complete circuit guide for amateur radio enthusiasts

