The Orange Pi is a $15 single board PC similar to the Raspberry Pi.
You can get one at aliexpress.com here
This project can be easily built with any Raspberry Pi too
Flightradar24 is a fun app that lets users feed local aircraft data in realtime. You also get access to premium features for feeding data.
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Step 1: Get an SDR Dongle
You can get an SDR dongle with antenna from Ebay, Amazon or aliexpress for $10-$20
Step 2: Get Your Linux
Step 3: Installation
Format a micro SD card to fat and burn the image to the card.
Put the SD card in your Orange Pi and connect an HDMI monitor, the SDR dongle, USB keyboard & mouse, cat5 cable and power it up by plugging in the USB power cord.
You'll be greeted with a login prompt
User is root
Password is orangepi
Once logged in open a terminal and type raspi-config
Make the following changes: boot to command line and enable SSH Server.
Select Finish and reboot.
Find your Orange Pi's IP address on your local network
Login using SSH from another PC
password is orangepi
*I highly advise changing the root password adding a sudo user...
Get the update & install it
sudo apt-get update && sudo apt-get dist-upgrade
*this is a painfully long update...
Next install the Flightradar 24 feeding software
gpg --keyserver pgp.mit.edu --recv-keys 40C430F5
gpg --armor --export 40C430F5 | sudo apt-key add -
sudo nano /etc/apt/sources.list
Add the following to your sources.list
deb <a href="http://repo.feed.flightradar24.com" rel="nofollow"> http://repo.feed.flightradar24.com </a> flightradar24 raspberrypi-stable
Ctrl+x > y and enter to save
sudo apt-get update
sudo apt-get install fr24feed
Run the sign-up wizard
You can use http://mygeoposition.com to find your latitude, longitude and elevation
Once complete run
sudo service fr24feed restart
You should soon be feeding to FR24!
Mount your antenna in the best location you can. Preferably outdoors, or indoors near a window as high as possible.