[aprssig] Raspberry PI

[John Langner WB2OSZ]

Raspberry Pi Packet TNC, APRS Digipeater, IGate

In the early days of Amateur Packet Radio, it was necessary to use a "Terminal Node Controller" (TNC) with specialized hardware. Those days are gone. You can now get better results at lower cost by connecting your radio to the "soundcard" interface of a computer and running free software.

The Raspberry Pi (RPi) is a good platform for running a software TNC, APRS digipeater, and IGate. Why use a larger computer and waste hundreds of watts of power? All you need to add is a USB Audio Adapter ($8 or less) and a simple PTT circuit to activate the transmitter.

Continued...

https://github.com/wb2osz/direwolf/raw/master/doc/Raspberry-Pi-APRS.pdf