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  • Arctic Code Vault Contributor




Hi, my name is Jason Milldrum and my amateur radio callsign is NT7S. I'm the owner of Etherkit, my business which sells open source electronics and amateur radio products. I open source the hardware, firmware, and software of every product that I develop for sale (and others which I don't sell and only post here for others to use).

If you enjoy my released work, take advantage of it, or just like what I'm doing in general, you can help me by subscribing to my SubscribeStar account. At this point, Etherkit makes enough to keep itself afloat and occasionally funds a new bit of lab gear, but that's about it. Purchasing my products through Etherkit or giving further assistance via SubscribeStar helps me to fund the development of new open source products and software/firmware libraries. I believe in Elmering and giving back to the community when I can, and I definitely plan to do more in this area in the future.

As of September 2020, here's what I'm working on and what is coming soon:

  • I'm completing my Empyrean campaign on Indiegogo and will be moving it to regular production soon.
  • Next up I will be finishing work on my amateur radio MEPT (Manned Experimental Propagation Transmitter) named OpenBeacon 2.
  • Working through the large backlog of issues here on my GitHub repos. I have seen them and I'm not ignoring them, I have had to prioritize other things first.
  • Smaller projects that are mostly completed, such as a Si5351B/Si5351C breakout board, QRP antenna trap board, and some various boards useful for the workbench.
  • I definitely want to get back to the development of a QRP transceiver for amateur radio use, much like I almost did with my CC1 project.
  • I'm also interested in make some easy kits for kids to make, as I have a couple of them in my own home!
  • Would like to put some more work into the Test and Measurement document that I'm collaborating on with LA3PNA.
  • How to help get new folks interested in ham radio homebrewing is something I'm also mulling over.

Popular repositories

  1. Library for the Si5351 clock generator IC in the avr-gcc environment

    C 20 11

  2. Radio Measurements for the Amateur

    TeX 5 3

  3. Forked from la3pna/trackuino-tracker

    The Arduino APRS Tracker

    C++ 3 1

  4. A small Python program to display UTC time and DX cluster spots on a VFD connected to a PC

    Python 2

  5. Hi Juno control program


  6. Automatically exported from


98 contributions in the last year

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Contribution activity

October 2020

NT7S has no activity yet for this period.

September 2020

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