Once you move away from the usual software defined radio (SDR) dongles, you have only a few choices unless you want to drop some serious cash. One common hobby-grade SDR is the KiwiSDR.
MTRI has successfully implemented a three-node software-defined radio (SDR) system that records 25 MHz of bandwidth continuously on each node for up to 120 seconds. The system is capable of ...
like most ham radio operations the advent of software-defined radio (SDR) has helped revolutionize this aspect of the hobby as well. [Aaron] shows us how to make use of SDR for direction finding ...