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  • GRCon 2023 CTF Challenge (NRSC5)

    GRCon 2023 CTF Challenge (NRSC5)

    This year Clayton “Argilo” Smith offered me an opportunity to provide one of the challenges for the GRCon capture the flag event (CTF). I was quite eager to do this since we had recently finished implementing a multitude of changes to the gr-nrsc5 transmitter and nrsc5 receiver. And by We, I really mean mostly Clayton,…

  • Making an SDR Antenna Sharing Box

    Making an SDR Antenna Sharing Box

    This was my little weekend project to re-design and re-build myself a new box to allow automatic switching and sharing of my antennas between my HAM rigs and my SDRs. There already exist several such boxes that can be readily found from the likes of MFJ, ham stores, or noname sellers on ebay. Unfortunately, none…

  • EME Contest at DSES 4/22/23

    EME Contest at DSES 4/22/23

    There was an earth-moon-earth contest at the Haswell, CO site run by the Deep Space Exploration Society. This was a contest involving bouncing signals off the moon and making contacts with other people doing the same thing. Very cool! First time I got to hear my own echo come back off the moon. They ran…


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