The RTL-SDR devices (V3 and V4) have gained popularity among radio amateurs because of their
very low cost and rich features. A basic system may consist of a USB based RTL-SDR device
(dongle) with a suitable antenna a Raspberry Pi 5 computer a USB based external audio
input-output adapter and software installed on the Raspberry Pi 5 computer. With such a modest
setup it is possible to receive signals from around 24 MHz to over 1.7 GHz. This book is
aimed at amateur radio enthusiasts and electronic engineering students as well as at anyone
interested in learning to use the Raspberry Pi 5 to build electronic projects. The book is
suitable for both beginners through experienced readers. Some knowledge of the Python
programming language is required to understand and eventually modify the projects given in the
book. A block diagram a circuit diagram and a complete Python program listing is given for
each project alongside a comprehensive description. The following popular RTL-SDR programs
are discussed in detail aided by step-by-step installation guides for practical use on a
Raspberry Pi 5: SimpleFM GQRX SDR++ CubicSDR RTL-SDR Server
Dump1090 FLDIGI Quick RTL_433 aldo xcwcp GPredict TWCLOCK
CQRLOG klog Morse2Ascii PyQSO Welle.io Ham Clock CHIRP xastir
qsstv flrig XyGrib FreeDV Qtel (EchoLink) XDX (DX-Cluster) WSJT-X
The application of the Python programming language on the latest Raspberry Pi 5 platform
precludes the use of the programs in the book from working on older versions of Raspberry Pi
computers.
