@penguin42 kernel programming was no more difficult

@penguin42 actually Xt, not wt.

@penguin42 Yep, that may have been a commercial library for Linux, before an open source equivalent existed. Prior to that I was using Xwt and even raw X. The later releases of various open source GUI libraries and desktops was such an major breakthrough at the time.

From the same era, when writing a GUI app in Linux probably meant buying a shelf full of X programming books. I was really, really, into satellites.

Mockup and progress... 🙈 (using DJGPP + dosbox)

Note, however... this toot is not a commitment to completing anything 😛 I can already tell that I'm going to have trouble with some of the math here (and maybe performance).

Just tripped across this blast from the past: my first published article, in an .au electronics magazine.

Remember paper magazines? No? Ok.



#hamradio #amateurradio #satellite #electronics

@keithp Thanks for writing a man page! Also, Nickle looks very interesting.

Hey #Linux #Kernel people. Last year we had the first #Kernel Devroom at #FOSDEM. And we're running the #Kernel Devroom for #FOSDEM in 2024 as well!

#FOSDEM 2024 is taking place over the weekend of the 3 & 4 February in Brussels, Belgium!

It is a wonderful event that's very close to my and a lot of people's hearts!

Join @rppt, Daniel Borkmann, and @stgraber, and myself and make this another great #FOSDEM!

We're very excited for your submissions!

https://lists.fosdem.org/pipermail/fosdem/2023q4/003536.html

@film_girl I made a day trip (via plane) to Portland many years ago, to see an art thing, and people looked at me like I was insane. This proves I am normal, thanks.

@W6KME @ai6yr and "always check 20m"

@danluu almost unusable in many cases, reminds me of Altavista days.

Amazingly, you can some online courses in math from top tier universities, for free: https://www.edx.org/search?q=linear+algebra&tab=course

📢 The CfP for the 2024 Linux Security Summit North America is open!

https://events.linuxfoundation.org/linux-security-summit-north-america/program/cfp/

Location: Seattle, USA

Dates:
- CfP close: January 21, 2024
- Speaker notifications: February 06, 2024
- Event: April 18-19 2024

@Gina yes, you will get burned in 10-15 mins even through car windows.

Performed some more mm-wave testing at the PNW Microwave build day, looking at the output of the 40-50 GHz quadrupler. Thanks to W7GLF for bringing in his spectrum analyzer & external mixer. Results forthcoming.


#amateurradio #hamradio #microwave #mmwave #electronics

Videos and slides from the 2023 Linux Security summits may be found here:

• Linux Security Summit North America (LSS-NA), May 10-12 2023, Vancouver, Canada.
  • Video playlist
  • Slides & abstracts
• Linux Security Summit Europe (LSS-EU), September 20-21 2023, Bilbao, Spain.
• Video playlist
• Slides & abstracts

This is the good stuff:

→ https://fedoramagazine.org/create-images-directly-from-rhel-and-rhel-ubi-package-using-mkosi/

written by @zbyszek

Getting ready to do a test run of my probing class for my first in person beta audience.

This will be my second test run of the lecture (first was a YT livestream a year or so ago) and the first time doing the labs.

There's still more meat I want to add especially towards the end of the class (e.g. the section on current probing is just a handful of slides, and there's no lab for it yet as i don't have any current probes here) but it'll be good to get feedback from a test audience on pacing and content.

Probably going to do at least one more test round early next year before I start doing it officially. Looking into getting registered with IEEE to provide approved continuing education / professional development hours as well.

@penguin42 also, power factor.

There's internal filtering in the LNB, both at the RF and IF levels, which will be limiting factors in how out of spec this can be operated at. It may be possible to adjust the internal LO upwards, and some of the filtering, but likely at some performance cost.