Experiments with Software Defined Radio!
Awesome new way to listen to the radio.
Hey guys, this summer I will be talking more about my projects here at Medium, cool things are coming soon.
This week I bought a Realtek SDR (R820T2) which is capable of scanning a wide band of radio-frequency (25 MHz-1.7 GHz) and this is awesome! This tiny little USB dongle (blue thing above) have a massive amount of applications which I’ll talk more about here soon.
And more, with four or more dongles at different locations I can track an aircraft even if the transponder isn’t sending the location, which is a common thing here. This process is called Multilateration (MLAT) widely used by online plane trackers such as FlightRadar24.
Once you are listening for ADS-B you can share your collected information with the online airplane trackers (FlightRadar24, FlightAware) and get Premium accounts for free. You can also apply for receiving one SDR for free, but then you can’t use it for other things and have to provide 24/7 power and internet.
In the coming weeks I will make a QFH Antenna (Quadrifilar Helix) to improve my reception of 137 MHz radio-waves coming from fast spinning things, guess what 😜.
I did write how I did it here, so make sure you are following me here and on Twitter.