Raspberry Pi Pico Makes an MSF-SDR: Decode a Time Signal with a Pi Pico SDR
MSF serves as the UK's counterpart to Germany's DCF77 time signal transmitter. This software-defined radio (SDR) project demonstrates a straightforward and cost-effective approach to building a receiver and decoder for these (and other) time signals. The hardware requirements are minimal: use a Raspberry Pi Pico to receive, decode, and display information from the MSF time signal.
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AVR Software Defined Radio
Want to generate some signals? In the "AVR Software Defined Radio" article series, Elektor presents a variety of practical experiments: sine- and square wave generators, an RMS voltmeter, experiments in FM, AM and PM, FIR and IIR filters, wireless data transmission, reception of the DCF timecode signal, RTTY weather messages, and BBC long-wave radio transmissions. Read on to learn about a signal generator board, a DDS sinewave generator, an FM generator, and more.
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Radio Direction Finding: Tracking Down Lost Wireless Weather Sensors
Want to use radio direction finding (RDF) to locate a lost weather sensor? The process doesn't have to be overly complicated. The device is built as a compact unit, so no inner compartment screening is required and only the overall receiver assembly is enclosed in soldered sheet metal for shielding. Freestanding construction or operation of the module, for example in a weather station, is only possible if the ground connections at the pins are kept short and not too thin, with decoupling capacitors fitted where necessary.
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FM/DAB+ Receiver: The Best of Both Worlds
Building a DIY radio receiver has always been a favorite project of electronics enthusiasts. Today, many makers are still passionate about DIY radio projects, especially digital ones. This article covers the process of creating a digital radio using an ESP32 module and an Arduino shield, which leverages the Si4684 digital receiver chip from Skyworks to achieve this goal.
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