Wednesday, 7 January 2026

Simple Speech Processor for Homebrew SSB Transceivers

Simple Speech Processor for Homebrew SSB Transceivers: A simple speech processor circuit for homebrew and QRP SSB transceivers, improving average talk power while maintaining clear and natural audio quality.

Good speech processing can make a dramatic difference to how a low-power SSB signal sounds on air. In homebrew and QRP SSB transceivers, transmitter audio is often clean but lacks average power, making signals sound weak during normal conversation. The compact Simple Speech Processor circuit shown here addresses that exact problem by increasing average talk power while preserving intelligibility and keeping distortion under control.

Microphone Preamplifier with Diode Clipper for SSB Transceivers

Microphone Preamplifier with Diode Clipper for SSB Transceivers: Learn how to build high-performance microphone preamplifier featuring a diode clipper. This guide breaks down transistor stage and 1N914 limiting mechanism

Tuesday, 6 January 2026

Build Your Own 80M CW Transmitter from Scratch

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

Monday, 5 January 2026

Housing the LARCSet: A Community-Designed 3D-Printed Enclosure

Housing the LARCSet: A Community-Designed 3D-Printed Enclosure: A detailed look at a 3D-printed enclosure for the LARCSet transceiver, featuring Peter Marks’ open-source design and real-world build photos by Michael VE3WMB.