• July 14, 2019

    K1FM WSPR Transmitter (aka: el cheapo Antenna Testing)

    I recently built a couple of identical WSPR transmitters to be used in direct comparisons between magnetic loops and other antennas, or even between various kinds of magnetic loops. They are now available on Github. The transmitters are based upon the Si5351 clock generator and their RF section was inspired by the excellent Zachtec’s products…. Continue

  • May 14, 2019

    K1FM Pico Balloon – Part One

    The Pico Balloon concept is simple: you build a transmitter small enough to be carried around by one or two common party balloons. As the transmitter floats around the globe it transmits its current position and altitude so you can follow its path in realtime. If you do it right, the balloon will circumnavigate the… Continue

  • February 14, 2017

    HDSDR OSX version 2.76 released

    Once again, with Mario’s permission, I bundled the latest revision of HDSDR to be run on OSX. I also created a new rtl_sdr launcher that should be more stable, easier to use and that incorporates the bleeding edge version of librtlsdr. I tested this on Yosemite, El Capitan and Sierra. My CPU is a quad i7…. Continue

  • January 20, 2016

    HDSDR on OSX the EASY way – SDRplay edition

    Hello, Today I updated my HDSDR OSX bundle to include support for SDRplay. Nothing much has changed… If you want to enjoy SDRplay + HDSDR on OSX, all you need to do is the following: Install the SDRplay drivers (available here) Download my bundle Copy ‘HDSR OSX’ and ‘rtl_tcp SDRplay’ on you hard drive Run the… Continue

  • October 16, 2015

    HDSDR on OSX the EASY way (reloaded!)

    Introduction A while ago I published a bundle that easily allowed anyone to run HDSDR and the RTL2832U on OSX. To my surprise the bundle was quite successful, a demonstration that there weren’t (yet) many available alternatives to use the cheapest (and funniest!) SDR radio in the world on a Mac. After a few years… Continue