Posts
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Following
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Followers
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Linux Kernel security developer, working for Microsoft. Also W7TXT. Views are my own.
Topics: #Linux #kernel #security, #amateurradio, #RF, #hamradio, #electronics, #science, #radioastronomy, #physics, #space, #arduino.

📡 https://w7txt.net/
🐧 https://blog.namei.org/
☠️ https://www.facebook.com/w7txt
jmorris

James Morris

@stgraber nice!

RE: https://hachyderm.io/@stgraber/115645419902489080
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jmorris

James Morris

A couple of shell aliases I use all the time:

alias gg="git grep"
alias gt="glow -t"

The last is for viewing .md files.
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jmorris

James Morris

FYI. This is/was a strong password & supposedly protected.
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jmorris

James Morris

Kind of weird to think that Voyager 1 is 25 billion km away, transmits with about 22 watts of RF power, and we can still hear & decode it here it on Earth.
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jmorris

James Morris

Video of reflow soldering with an MHP50 hotplate. Works pretty well for small boards. I was previously using a hot air gun but it would blow the components around. Can also more accurately follow the manufacturer reflow specs.

https://www.youtube.com/watch?v=rdS6JTRX_HA
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jmorris

James Morris

Reply to @arrjay@tacobelllabs.net
@arrjay no
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jmorris

James Morris

@strangeparts not sure I would enter such a room.

RE: https://mastodon.strangeparts.com/@strangeparts/115515407911086704
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jmorris

James Morris

Reply to @azonenberg@ioc.exchange
@whitequark @azonenberg @niconiconi I have seen something like this in commercial radio gear, which may have great baseline performance and build, but have very mid he support for digital waveform compared to open source software implementations. That said, it is reflected in pricing, e.g: $900 for consumer hw + OSS; $3000 for commercial hw; $30k for military hw.
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jmorris

James Morris

I can highly recommend getting a ferrule crimper for connecting wires to these kinds of terminals.
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jmorris

James Morris

Reply to @va3db@mastodon.radio
@va3db @n8dmt in theory we are empowered (in the US at least) to identify emissions which impact us and work with the offender, but I wonder if that is a productive use of time. We are doing the FCC's job, and they should pay us for that.
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jmorris
repeated
david_chisnall@infosec.exchange

David Chisnall (*Now with 50% more sarcasm!*)

We have released 1.0 of the #CHERIoT specification! The architecture has been unchanged for almost a year and has been implemented in two open-source cores. We (SCI) are getting back our first CHERIoT silicon from the fab soon and will be moving to mass production net year (I can't talk about what other people are doing with CHERIoT).

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jmorris

James Morris

Reply to @va3db@mastodon.radio
@va3db @n8dmt FWIW, I have had good RF experiences with the Samlex units made for radios, and MeanWell modular units for use inside project boxes.
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jmorris

James Morris

Reply to @ftg@mastodon.radio
@ftg No. This will eventually fail and fall off, probably while driving down the highway.
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jmorris

James Morris

@mossmann very cool: measuring < 0.01 Hz changes in an 60 kHz signal from Colorado while flying in a passenger jet is impressive.

RE: https://mastodon.social/@mossmann/115493045854686572
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jmorris

James Morris

AI really is no fun.
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jmorris

James Morris

Reply to @pathunstrom@ngmx.com
@pathunstrom yes.
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jmorris

James Morris

Reply to @MW1CFN@mastodon.radio
@MW1CFN Thanks, some great info there!
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jmorris

James Morris

Reply to @analgesicsleep@mastodon.social
@analgesicsleep Misleading advertising!
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jmorris

James Morris

Reply to @K4NE@mastodon.hams.social
@K4NE It's the Andonstar AD246S-M, which was recommended to me by another microwaver. Has HDMI out, and a smaller installed screen, which is probably right for me.
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jmorris

James Morris

@jbz who needs Black Mirror?

RE: https://indieweb.social/@jbz/115435878385867328
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