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6. Radiosondes
Radiosondes are weather observation balloons used by scientists, weather agencies and military to collect data about wind, temperature, humidity, ozone and so on in the different layers of our atmosphere. If you follow the steps in this chapter of the tutorial you will be able to receive data from Radiosondes and feed it to the big map.
You need to change the id / serial number of the SDR stick you want to use for radiosondes, to distinguish it reliably from the other rtl-sdr sticks. You do not want to mix it up after a reboot, it will result in not working radiosondes.
Plug your SDR stick in a PC with no other RTL-SDR stick connected. This can be your Raspberry Pi or every other Linux computer with the rtl-sdr library installed.
Set the new serial with
sudo rtl_eeprom -s 30000001
For your first stick. If you use more than one stick for Radiosondes increase the serial +1 for each new stick like 30000002, 30000003, ... You need to reconnect your stick or reboot your system sto access your stick with the new serial. Beware that smaller numbers like 2 do not work.
If you didn't already, add our package repository first, as shown in the Install Chapter
sudo apt install radiosondeautorx
Edit /etc/default/radiosondeautorx and change at least the following parameters:
- sdr_quantity
- device_idx
- max_freq
There are lots of other options, please have a look at the official auto_rx wiki
sudo systemctl restart radiosondeautorx
Now you may proceed with installing our feeding package, if you didn't already. Or you may install another service, e.g. ADS-B and/or AIS.