I have recently become a huge fan of SDR, taking a 12$ USB dongle which is intended to receive FM and TV channels into a whole new world of listening to open frequencies , un-encrypted wireless handsets or ATC.
After getting into SDR in my learning phase i managed to listen to different frequencies and perfecting them making customized antennas using things i find at home.
I was able to get my hands on RTL-SDR through AliExpress , took almost 35 days to reach, the package include the USB dongle and a small antenna, The RTL2832U is a high-performance DVB-T COFDM demodulator that supports a USB 2.0 interface.
Snapshot of my DVB-T+DAB+FM
After doing a little googling i found out the frequency i was interested in which was 124.8, this frequency is used by ATC . The antenna below was made from cloths hanger , using the online RF wavelength for best quality .
Listening to local frequency 124.8