pymultimonaprs

RF2APRS-IG Gateway supporting this backends:

Pulseaudio
ALSA
RTL-SDR

Installation

Install multimonNG
Install rtl-sdr (for RTL-SDR backend)
Run python2 setup.py install

Configuration

Edit /etc/pymultimonaprs.json:

Backend

Set the source to rtl, alsa, or pulse to select the backend

Status

Set the status text, or set a status file - the content of this file will be read at runtime and sent as status. This way you can eg. monitor your battery status using APRS-IG. Set both text and file to false to disable status beacon.

Position Ambiguity

To hide your exact position you can set the ambiguity value to a value from 0 to 4.

0 will not hide anything
1 will decrease precision to 1/10 of a min
2 will decrease precision to 1 min
3 will decrease precision to 10 min
4 will decrease precision to 1°

Weather

You can set weather to a json-file. eg: "weather": "/path/to/weather.json",
If you don't want do send weather date, just leave it on false.
This will be read in like the status-file and can look like that:

{
	"timestamp": 1366148418,
	"wind": {
		"speed": 10,
		"direction": 240,
		"gust": 200
	},
	"temperature": 18.5,
	"rain": {
		"rainlast1h": 10,
		"rainlast24h": 20,
		"rainmidnight": 15
	},
	"humidity": 20,
	"pressure": 1013.25
}

Legend

timestamp is seconds since epoch - must be included
wind
- speed is in km/h
- direction is in deg
- gust is in km/h
temperature is in °C
rain
- rainlast1h is in mm
- rainlast24h is in mm
- rainmidnight is in mm
humidity is in %
pressure is in hPa

The timestamp must be included - everything else is optional.

Symbol

The correct symbol is already selected. If you still want to change it, you can find the symbol table here.

IPv4 / IPv6

To select a protocol you can set preferred_protocol to ipv4, ipv6 or any.
You use a raw IPv6 address as a gateway like this: "[2000::1234]:14580".

Running

Run systemctl start pymultimonaprs or just pymultimonaprs -v for testing

pkropf/pymultimonaprs