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This is a packet radio software developed for amateur radio operators to provide IP communications. You can chat, send/receive e-mail, surf the web and so on via radio depending on your bandwidth. You don't need a TNC. You might have all of TNC features via SoundCard using SoundModem.

The BayCom-Mailbox is an amateur radio/citizen band AX.25 Bulletin Board System with AX.25 store and forward capabilities. The software is available for Linux, DOS and Win-NT. OpenBCM is opensource and freeware.

A user group established by John Wiseman G8BPQ/GM8BPQ and Ron Stordahl AE5E (ex N5IN) for BPQ32 - AX.25 NET/ROM compatible node software for Windows.

Yet Another APRS Client, is a free Java application written by Andrew Pavlin, KA2DDO, for monitoring and contributing to the APRS network. YAAC can be used as a stand-alone APRS client, an APRS RF-Internet gateway (I-Gate), or as a AX.25 digipeater.

Soundmodem is a free software defined dual-port Packet-Radio TNC that implement a soundcard as a modem and supports AX.25 protocol. Soundmodem has been tested on Windows XP, Vista, 7, 8, 10 and has proved stable in operation. The Soundmodem may be used to build EMCOMM, APRS, BBS, Node station, for satellites

This page describes how to set up RaspBerry Pi Linux system with already configured AX.25 softwares on SD or micro SD cards

Q15X25 is a packet modem with a KISS/AX.25 interface designed for HF transmission of AX.25 packets and TCP/IP using Automatic Repeat reQuest (ARQ) and forward error correction (FEC).

AX.25 Packet Modem homebrew project on Arduino

Remotely-Operated 1200 Baud AX.25 Narrowband Packet Radio and APRS on a Baofeng UV-5RA and Raspberry Pi 2

The Linux operating system is perhaps the only operating system in the world that can boast native and standard support for the AX.25 packet radio protocol utilized by Amateur Radio operators worldwide. This document describes how to install and configure this support.

The WhereAVR is a small, lightweight, low-power, and low-cost APRS tracker with a full compliment of analog and digital I/O, as well as the ability to decode ax.25 packets. This allows for the reception of remote commands without the need for a real TNC.

Facilitate seamless communication in the world of packet radio with PoPT, a versatile terminal program designed for AX.25 protocol enthusiasts. Operating across multiple platforms, including Windows, Linux, macOS, and Raspberry Pi, it caters to a wide range of users. The program supports various connection methods such as KISS over TCP/Serial and AXIP over UDP, ensuring compatibility with Linux AX.25 devices. This flexibility allows operators to maintain robust connections in diverse environments. Developed with Python 3.11, PoPT is currently under active development, reflecting a commitment to staying at the forefront of technological advancements. Its multi-platform nature ensures that operators can leverage their existing hardware setups without the need for additional investments. The program's ability to handle different connection types makes it a valuable tool for those engaged in packet radio operations, whether for personal experimentation or more structured communication networks. PoPT's ongoing development promises future enhancements and features, making it a dynamic choice for operators looking to explore the capabilities of AX.25 packet radio. Its adaptability and support for modern systems position it as a practical solution for contemporary amateur radio enthusiasts.

The resource details the use of LoRa for AX.25 packet radio and APRS, focusing on practical implementation. It specifies UK LoRa APRS frequency and modulation settings: **439.9125 MHz**, 125kHz bandwidth, SF12, and CR 4/5. The content provides a mini how-to for setting up an iGate using VS Code and _Platformio IDE_, with specific instructions for a Lilygo LoRa32 V2.1_1.6 board, including configuration for Wi-Fi, beaconing, and APRS-IS passcode. It also covers tracker setup using a Lilygo T-Beam Supreme, detailing firmware flashing and configuration for mobile operation. The guide differentiates LoRa APRS from traditional connected-mode packet radio, explaining why common LoRa APRS firmware is unsuitable for full AX.25 packet due to its TNC2-style payload structure. It explores alternative solutions for true LoRa packet radio, such as using an _RNode_ TNC or Raspberry Pi LoRa TNCs, and provides commands for RNode firmware installation and configuration for serial KISS operation. The resource also touches upon licensing requirements for unattended Digipeaters in the UK, noting the need for ETCC coordination and MB7Uxx callsigns.