Something we missed posting about from last year was this presentation on “RasHAWK”, a direction finding system (pdf) built out of a Raspberry Pi, an RTL-SDR and four antennas on a 4 way switch running software created with REDHAWK. REDHAWK is a visual DSP development platform that can be considered similar to GNU Radio or some parts of MATLAB. The authors write:
The RasHAWK team has used a Raspberry Pi as the basis for a networked RF sensor capable of supporting spectrum monitoring, signal intercept and direction finding (DF) operations.
Several RasHAWK sensors are deployed in a distributed sensor grid, wirelessly tethered to a command and control (C2) laptop. The system has the following key features and capabilities:…READ MORE
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![Expert Linear 1.5-FA Solid State Amplifier [ Hamvention ]](https://qrznow.com/wp-content/uploads/2022/06/spe-190x122.png)
Expert Linear 1.5-FA Solid State Amplifier [ Hamvention ]
Solid State Amplifier Powerful: 1.5 kW typ. (+/- 0.5dB) Very Light: about 10 kgs (about 22 lbs). Very Small: H 12, W 28, D 36 cm. (4.72″ X 11.2... Read more
