The open source fox transmitter.

FT8 library

Docker base SDK for Raspberry Pi Pico

A script that acts like a Fortran compiler that uses Flang to build sources for iOS arm64.

uSDR implementation based on a RP2040 Pi Pico

A simple direct conversion receiver using the phasing method of image rejection. This is an evolution of the uDCR and the uDCR2 receivers.

Pseudo Fractional PLL for RP2040

Generic command line non-JVM Apache Kafka producer and consumer

WSPR beacon for Raspberry Pi Pico, based on pico-hf-oscillator library. It doesn't require any hardware - Pico board itself only.

Digital controlled radio frequency oscillator based on Raspberry Pi Pico (1 Hz to ~32.333 MHz band). RTTY, MFSK, freq sweep examples are included.

Python AX.25 Module

TinyVM is a small, fast, lightweight virtual machine written in pure ANSI C.

An ALSA sound driver collecting sound samples for F5OEO's rpitx.