When I installed the RSP1A and then the RSP1B on a five-year-old laptop with more processing power, the choppiness went away. Worth noting: The RTL-SDR Blog V4 had no choppiness issues. The display of ...

The R820T tuner IC is used in the popular Airspy software defined radio (SDR) as well as many of the inexpensive RTL SDR dongles. [TLeconte] did some experiments on intermediate frequency (IF) conf… ...

The “Spectrum Spy” software and Airspy SDR I used for those measurements can also be used as part of a very portable, simple, inexpensive field measurement setup. This setup is not a replacement for ...

His AirSpy Mini SDR was connected to a home-brew quadrifilar helical (QFH) “eggbeater” antenna on his roof. ... 20$ for an RTL-SDR, 20$ for DIY QFH Antenna or similar and 10$ for cabels etc.