Category: Electronics

Introduction In the previous post we looked at using the RTL-SDR on Raspberry Pi4 with GNU Radio and Gqrx. We examined three applications: displaying the FM band spectrum, wide-band FM reception and narrow-band Marine weather reception. In this post we look at the RTL-SDR for AM reception on GNU Radio. The latest version of GNU… Continue reading RTL-SDR for AM on GNU Radio

Introduction When I was about eight years old, I received a “Rocket Radio” for Christmas. It was about six inches high, red and looked like a small rocket. It had a sliding rod which acted as a tuning inductor for the crystal receiver inside. I spent hours listening to the various powerful AM stations, with… Continue reading RTL-SDR on Raspberry Pi4

Introduction In the previous three posts we looked at planning for reception of GOES16 weather signals, signal capture and signal decoding. In this post we use a temporary dish support to receive GOES16 over a short time period by keeping the Viterbi error rate as low as possible. Due to the author’s location, a rigid… Continue reading RTL-SDR for Satellite Weather on GOES16 – Image Capture

Introduction In the previous two posts we looked at planning for reception of GOES16 weather signals and we did a signal capture as shown above. Improved performance resulted when the LMR400 coax was inserted between the SAWBIRD Filter/LNA at the back of the antenna and the RTL-SDR . From the first planning post, the average… Continue reading RTL-SDR for Satellite Weather on GOES16 – Signal Decoding