Software Defined Radio
Researching the possibility of setting up an Internet (or HAMNET as known to amateur radio operators) connection over the QO100 amateur radio geostationary satellite.
Using a LimeNET-Micro remote controlled standalone transceiver with GNU Radio, QRadioLink and voice over IP to access amateur radio FM repeaters and more.
Amateur radio FT8 distance contacts on 144 MHz with the PlutoSDR and 20 Watts output power.
A brief description of a slightly unconventional 4FSK decoder with Viterbi soft symbol decoding for convolutional code.
A closer look at the digital voice modes employed by QRadioLink, how they work, when they are best used and some technical characteristics.
Choosing the right RF power amplifier for your SDR device
Support for the most common amateur radio digital modes: DMR, D-Star, Yaesu System Fusion