afsk topic

Old school Arduino modem, Bell 103 compatible, at 300 baud

cstroie

VP-Digi - a functional, cheap, easy to assemble and configure STM32-based APRS digipeater controller with built-in KISS modem.

sq8vps

My own custom firmware for the HackRF SDR + PortaPack H1 addon - Not for the faint-hearted.

z4ziggy

Custom firmware for the HackRF SDR + PortaPack H1 addon

furrtek

GNU Radio Hierarchial Block(s) to Test and Receive APRS Packet

handiko

Terminal Node Controller (TNC) for ESP32

amedes

AFSK 1200 X.25 APRS Modulator & Demodulator

dkxce

Dorji DRA818V VHF transmitter module shield for Arduino UNO & compatibles

handiko

This project will have the files for a Cube Sat Telemetry system Using Raspberry Pi Transmitter Board

antonjan

A modem/TNC to generate the AFSK audio tones for sending APRS messages using a Raspberry Pi Pico/Pico2

eleccoder