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Software-Defined Radio for Engineers (2018) [pdf] by Tomte

Software-Defined Radio for Engineers (2018) [pdf] by Tomte

5 Comments

  • Post Author
    Sanzig
    Posted March 10, 2025 at 6:41 pm

    In terms of software-defined radio learning resources, I can wholly recommend PySDR: https://pysdr.org/

    It's written by one of the GNURadio developers, but it uses NumPy and SciPy instead so you really get a feel for the low-level algorithms. Concepts are well explained and build on each other from module to module.

  • Post Author
    jdc0589
    Posted March 10, 2025 at 6:52 pm

    It's really easy to forget how complex SDR is, and how much expertise it really requires to fully understand if you need to write receivers/processors/filters yourself. There's a TON of great stuff out there for hobbyists that just want to get some cool stuff working though. I tried my hand decoding a soil temp/humidity sensor broadcast and was quickly reminded how complicated it can be for an initiate.

    I know almost nothing about actual SDR, but I've got a cheap SDR receiver/antenna inside a glass basement door that receives temp/humidity data from ~10 433Mhz transmitters in various rooms in my house + outbuildings, and a weather station that reports temp/humidity/lignthing strikes/rain amount/wind speed+direction, and lux. All that goes to an influx DB instance, and has a set of graphana dashboards built on top of it. Took me a couple evenings to get set up, and now I've got real time + historical environment data about everything I care about at my house; including high humidity alerts in rooms with dehumidifiers, freeze warnings for a crawl space, and a bunch of other stuff. It has been wildly reliable.

  • Post Author
    NoboruWataya
    Posted March 10, 2025 at 7:57 pm

    Aaaand now I've gone and dropped £35 on an SDR dongle.

  • Post Author
    rylittle
    Posted March 10, 2025 at 8:08 pm

    I inherited a HackRF One from a friend and this thread reminded me about it. Does anyone have any cool projects they recommend doing just to gain some experience in SDR / have fun?

  • Post Author
    ww520
    Posted March 10, 2025 at 8:38 pm

    Has anyone work on decoding over-the-air TV digital signal in software? I remember way back there were some cards that can decode OTA signals to be recorded into DVR.

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