Calibrating the PID controller of a DIY reflow hot plate. Mistakes were made.

The lack of threading here is diabolical.

@ftg @azonenberg @dlharmon I general, I cheat by not trying to use coax above 24 GHz, but I really should give it a go at 47 GHz one day. I'm thinking in terms of using spatial combiners though, all in waveguide, right from the device outputs. The detailed engineering needed to get excellent matches across coax to CPWG or microstrip is Officially Hard.

@g4dbn @DosFox I feel this. If AI & robots can't fix this, then what use are they?

Hi folks, I've just posted an edited version of one of the presentations I gave remotely at Microwave Update 2024 Vancouver. It's about some of the techniques I've been experimenting with for manufacturing antennas and feeds now I have a tame 5000-pound killer robot in my workshop, otherwise known as a SYIL X5 CNC mill.
https://youtu.be/ZDQyhEpxXmA
#radio #cnc #machining #microwave #mmWave

@jmorris definitely 😂 or these from the same facility

📢 Videos from Linux Security Summit Europe 2024 (LSS-EU) are up:

https://www.youtube.com/watch?v=S1r94G8yJMs&list=PLbzoR-pLrL6pXwGwbAmhi3DgsaPKJTLde

@daniel thanks! Wondering if this will also work as a Teams background

I visited ESA’s antenna laboratory so now you get new wallpapers (for free even!)

@NanoRaptor this is what they took from us

PROGRAMMING TIP
avoid repeating the same 4 lines of code twice by writing 270 lines of beautiful, abstract, generic code

@th @exiliaex amusing:

@g4dbn question on surface RMS for reflectors & horns: do you know if EDM could work for this?

At Microwave Update in BC (https://www.microwaveupdate.org), one of the vendors had a 170 GHz spectrum analyzer. How is it possible in a device this size? #hamradio #microwave #amateuradio

Toured the TRIUMF particle accelerator in Vancouver BC, got to stand on top of a cyclotron. The magnetic field was strong enough to prevent paperclips from laying flat. It’s also where they store old focusing magnets (which become radioactive).

OMG I want to tell you about the coolest thing I've learned about in a hot minute! (Maybe everyone already knows about this, but it's new to me & I LIKE LEARNING STUFF LET'S GO ON A JOURNEY OF EXPLOSIVE DISCOVERY TOGETHER)

SO. Under certain precise conditions, natural deposits of uranium can develop spontaneous nuclear fission chain reactions identical to the kind we make on purpose in modern nuclear reactors

*This has already happened at least once.* About 1.7 billion years ago in Oklo, Gabon

🗞️ The September issue of RDE Monthly is out!

The best monthly newsletter about Guix, Guile and RDE ecosystems.

Brought to you by Kirill Yermak and community.

https://lists.sr.ht/~abcdw/rde-monthly/%3C250419570.99760.1727873737363@office.mailbox.org%3E

Events, Releases, Announces, Articles and Videos, everything from the last month collected in one place.

Contribute to the next issue:
https://todo.sr.ht/~abcdw/tickets/66

Stay informed, stay engaged!

At https://www.triumf.ca

Tweety.

Just like I did for 6.10, I wrote up a "what's new with io_uring" but for the 6.11/12 kernels. 6.11 wasn't super exciting in terms of features, so bundled these into a single page.

https://github.com/axboe/liburing/wiki/What's-new-with-io_uring-in-6.11-12