Automatic Packet Reporting System (APRS)

This device broadcasts GPS coordinates to a ground based repeater.
It will also log GPS readings, and measure and record the altitude
to an onboard data logger. The APRS unit can be used on the ground
and in high altitude (near space) balloons. Movement is displayed
in real time on a digital map. Each mobile APRS station requires a
Global Positioning System receiver and an encoder. The encoder translates
the position data from the GPS receiver to audio tones for transmission
by a 2 meter FM transceiver.
The most common APRS frequency is 144.39 MHz.
(Ford, ARRL, September 2013, page 48)

This project was constructed, programmed and tested by Cameron Tully (2013).

1. Project Photographs

APRS GPS Tracker APRS GPS Tracker
Photographs, Cameron Tully, 2013

2. APRS Map!lat=49.10000&lng=-122.65000

3. Global Positioning System (GPS)

4. Automatic Packet Reporting System (APRS)

Wikipedia APRS entry

5. Amateur Radio Repeater

6. Connecting Board – Cameron Tully (April 2013)

Click the image to view the .pdf or the caption for the Proteus Ares layout.

APRS GPS Tracker Ares

7. Ultimate GPS Breakout – 66 channel with 10 Hz updates, Version 3

8. TinyTrak3Plus – an APRS GPS position encoder

9. APRS Radio Shield For Arduino

10. Trackuino – An Arduino APRS tracker