New blog post: Tianwen-2 low data rate telemetry. This is a short post where I analyze a recording of low rate (4 kbaud) telemetry done on June 8 during Tianwen-2's arrival to asteroid Kamo'oalewa. destevez.net/2026/06/tian...

New blog post: Non-coherent m-FSK BER. Another short post in which I derive the following formula for the symbol error rate of non-coherent m-FSK and validate it using simulations. destevez.net/2025/10/non-...

if i published a game on steam that consisted of a "code editor and HDL toolchain behind it (simply works)" & the objective is "implement logic in a real HDL without handrails but with debugger and tutorials" and there is a progression, leaderboard, and achievements would you play or playtest it?

New blog post: Synthetic aperture radar autofocus and calibration.

Synthetic aperture radar autofocus and calibration

3D trajectory position error estimation autofocus, antenna pattern normalization, and polarimetric calibration for drone mounted SAR radar.

hforsten.com

Have you ever wanted to see a 90 second abridged explanation of how diode lasers work? Here it is. I took some pictures of a laser under my SEM, and it kind of just scope crept into a whole video. Not perfectly accurate, but it's hard to squeeze 100 books of info into 90 seconds.

Knap mistig in Dwingeloo! Foto: Arno Schoenmakers.

💥Greater (partial) success for #amateurradio and #amsat satellite operators in dispute with AST Spacemobile over commercial use of the 430-440 MHz amateur radio band for TT&C! 💥 In its reference Attachment to the recent grant, dated August 29, 2025, the FCC imposes clear limits ⬇️

Ok let me rephrase this. Games (or puzzles) that use (or misuse) pointers (or other things I don't understand ) as a mechanic.

dr lee cyborg@leeborg.bsky.social · 12mo ago

Are there any games about accessing out of bounds memory on microcontrollers ? Like I'm imagining doing some things in C to intentionally access unallocated memory to print some specific result. Am I making sense ?

If you missed it, there's a new Murderbot short story at: reactormag.com/rapport-mart...

Rapport: Friendship, Solidarity, Communion, Empathy - Reactor

Perihelion and its crew embark on a dangerous new mission at a corporate-controlled station in the throes of a hostile takeover… Novelette | 7,540 words They were still three hours out when Perihelion...

reactormag.com

The Australian GNU Radio Days event is running September 23-26 in Adelaide, hosted by Flinders University. Three days of talks and workshops followed by breakouts. Still a little time to submit a talk or booth if you're interested! events.gnuradio.org/event/27/

GNU Radio is looking for a contractor to either port the existing Qt based GNU Radio Companion application to the web (running proof of concept exists), or to develop a new frontend capable of creating flowgraphs, executing the resulting program, and displaying the UI in the web. Could that be you?

We are finally ready to announce that EMF 2026 will happen on July 16-19, 2026, at Eastnor Castle Deer Park, Herefordshire. Expect more updates soon as we start spinning up the organisation again.

@angadh.com I really like the formatting of your blog. The typography, suggested soundtracks, clear links, and organizations work well together. I'm enjoying the variety of topics as well. Thanks for sharing your writing!

Meet HackRF Pro! HackRF Pro is a Software Defined Radio peripheral capable of transmission or reception of radio signals from 100 kHz to 6 GHz. You can read more about HackRF Pro and preorder it now from select resellers here: greatscottgadgets.com/hackrf/pro/

A new image of the International Space Station from another satellite captured by heospace.com 2025-06-14 21:28:56 UTC. The picture has a resolution of 18cm from a distance of 85.77km.

Found motivation to write some SAR processing code. Fast factorized backprojection generates several small polar format images and then interpolates them to one big image. It's faster, but has slightly worse image quality due to all the interpolations.

GRCon25 Call for Participation is open! Please submit your abstracts for presentations, papers, workshops - all the information available at gnuradio.org/grcon25

I added a sideways looking GoPro camera to my radar drone. Just tested it the first time and it looks very nice.

New blog post: BGM-1 Doppler during the lunar landing. Some quick plots of the Doppler of @firefly-aerospace.bsky.social's lander as received by the @amsat-dl.org and @radiotelescoop.bsky.social groundstations.

KiCad Version 9.0.0 Release The KiCad project is proud to announce the latest major version release. See the blog post on the KiCad website for more information about this release. www.kicad.org/blog/2025/02...

Hello Bluesky! Follow for homemade radars, RF electronics, FPGAs, programming, and other electronics related things.

Sylvain Munaut has created a basic software-defined radio the hard way — by combining two open-silicon projects submitted for production on two Tiny Tapeout shuttle runs: an analog-to-digital converter and a radio-frequency mixer.

Sylvain Munaut Combines Two Tiny Tapeout Projects to Create an Open-Silicon Software-Defined Radio

While the resulting SDR won't be winning any awards for performance or features, it's a great example of Tiny Tapeout's flexibility.

hackster.io

The recording for my #FOSDEM talk "Yet another new SDR runtime?" is now up. In this talk I speak about high-performance SDR runtimes in embedded systems, and present an experimental runtime I have been writing in Rust.

I'm headed to #FOSDEM this weekend! @gnuradio.bsky.social has a booth and there's a Radio devroom on Saturday.

Hello Bluesky! 📡 We're Goonhilly and we're a space technology company offering secure and reliable communication solutions from our sites in the UK and USA! We can't wait to keep you updated on our work across our three divisions: - Lunar & Deep Space Comms - Commercial Satcom - Defence & Security

Playing with the idea of "different perspectives on the same story"! QR code that sends you to a different source based on the angle.

New blog post: Decoding IEEE 802.11ah. Here I analyze a recording of a baby monitor camera, which happens to use 2 MHz BW WiFi HaLow at 866 MHz. Similarly to my LTE and 5G posts, I write a Jupyter notebook to decode the signal from scratch, and write the MAC frames to PCAP.

It took me a while but I finally finished to recode the 300 programs of Jean-Paul Delahaye’s book "Nouveaux dessins géométriques et artistiques" with p5js. The book was published in 1985 and features classic generative algorithms. github.com/v3ga/nouveau...

We are thrilled to announce Pace Layers, a new annual journal of long-term thinking. Our first issue is a 282-page compendium of ideas, art, and insights on what we call the pace layers of our planet: fashion, commerce, infrastructure, governance, culture, and nature. longnow.org/ideas/pace-l...

Announcing Pace Layers

The inaugural issue of Long Now’s new annual print journal synthesizes the most important learnings of our first quarter-century.

longnow.org