Econjack (ham radio call sign W8TEE) and Al Peter (AC8GY) have created the T41-EP Software Defined Transceiver (SDT) based on Frank Dziock (DD4WH)’s Convolution SDR code.

The T41-EP is an HF 7-band Single Sideband (SSB) voice and continuous wave (CW) Morse code transmitter, building on the receiver capabilities of the original project.

Unlike other systems, which require an external PC, the system is entirely powered by a Teensy 4.1. Similar systems also often cost ten times as much. The project is open source, with source code and more information available on the project’s Groups.io site.