APRS is a packet radio system used in Amateur radio that can be used to broadcast position, weather and small text messages.
Frequencies
| Frequency | Region |
|---|---|
| 144.39 MHz | North America |
| 144.575 MHz | New Zealand |
| 144.64 MHz | Taiwan, China |
| 144.66 MHz | Japan |
| 144.80 MHz | Europe |
APRS-IS
APRS-IS is the APRS Internet System. It is a system that relays APRS messages over the internet.
Reading the firehose
Connect to the APRS-IS server, send user 0 pass -1\n to authenticate as a guest. And then data will start flooding, read line by line.
You will want to occasionally send ping\n to keep the connection open.
Useful links
- http://www.aprs.org/
- https://en.wikipedia.org/wiki/Automatic_Packet_Reporting_System
- https://aprs.fi/
- https://www.febo.com/packet/layer-one/transmit.html
