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Following
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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/
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jmorris

James Morris

Reply to
@Wester_Hare @coolandnormal this is canon.
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jmorris

James Morris

@coolandnormal relatable!

RE: https://aus.social/users/coolandnormal/statuses/110995200171355092
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jmorris

James Morris

Reply to
@mw1cgg thanks, it seems popular!
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jmorris

James Morris

Reply to
@adamjsy Actually that seems like a reasonable price. I'm seeing $140-$400 for name brands.
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jmorris

James Morris

Troubleshooting a Tek spectrum analyzer PSU. Gonna need a bigger boat. I mean, an ESR meter.
Any recommendations on a budget ESR meter? 🤔
#electronics #hamradio #amateurradio
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jmorris
repeated
LinuxSecSummit

Linux Security Summit 🐧

Edited 1 year ago
A new batch of Linux Security Summit stickers has arrived! These will be distributed at upcoming conferences, starting with LSS-EU in a few weeks. There's also now a "Europe" 🇪🇺 version of the sticker.

https://events.linuxfoundation.org/linux-security-summit-europe/

#linux #security #lss #linuxsecuritysummit #lf #linuxfoundation #infosec
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jmorris

James Morris

Reply to @jmorris
I read this while flying across the Pacific Ocean and can highly recommend. Mersini-Houghton has established, with a testable theory, how our universe arose from an energy landscape as one of many different universes, overturning millennia of entrenched thinking that our world is special.

There's a good video on this here but I definitely needed the book to understand the finer details.

https://www.youtube.com/watch?v=GYVg50_w1UA

It's interesting that the observed evidence for her theory is stronger than she indicates in the video -- she is incredibly humble!
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jmorris

James Morris

Reply to
@vathpela not that I know of. I think this can be run on a real quantum computer if I can figure out the right cloud magic.
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jmorris

James Morris

Edited 1 year ago
Best meteor scatter rx so far: 1127 km. With just a dipole & preamp on 6m.

#hamradio #amateurradio #msk144 #meteorscatter #meteors #meteor #space #physics #rf #radio
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jmorris

James Morris

Definitely living in the future here -- using AI to write code for a quantum computer.
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jmorris

James Morris

The local electronics store (Vetco) is an Aladdin's cave of test equipment at the moment.
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jmorris

James Morris

Reply to @jmorris
It could be interpreted as "to avoid starting a new interaction, do not reply", so if you did not want a new interaction, you would in fact need to reply.
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jmorris

James Morris

Reply to
@appfrosch @searls It is confusing English, and can be interpreted as the opposite of what they are trying to say.
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jmorris

James Morris

Edited 1 year ago
Overnight meteor scatter rx haul on 6m, longest distance so far.

#hamradio #vhf #msk144 #6m #meteorscatter #perseid #meteors #space #amateurradio #wsjt-x
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jmorris

James Morris

Reply to
@vathpela @Lyude I stopped watching all ST a couple of episodes into Disco. They wrecked it.
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jmorris

James Morris

Reply to
@kellylepo it's so hard to wrap my head around the reality of objects of this scale and energy. Just the idea of an 'ordinary' elliptical galaxy for a start...
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jmorris

James Morris

Reply to
@VE2UWY @va3db @zazzoo I haven’t listened to a repeater like that but now I will try it. I’m no expert in meteor scatter but AFAIK the Doppler shift is within the pass band overall - there is spread, possibly similar to aurora. Btw I don’t know if people realize there is measurable Doppler on HF skip, especially during solar events, when the ionospheric layers change in height.
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jmorris

James Morris

Reply to @jmorris
@va3db @zazzoo and btw, this was with no pre-amp, and a dipole for a different band.
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jmorris

James Morris

Reply to
@va3db @zazzoo setting this up is easy if you can do FT8 or WSPR already, and have something as simple as a dipole for 6m. Run wsjt-x in msk144 mode overnight during this weekend and see if you catch anything. I just set this up last night and it worked. Note that signals closer than 500km are probably not MS.
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jmorris

James Morris

Reply to
@va3db @VE2UWY @zazzoo The ionized trail itself is not moving especially fast, which is what is used for communication.
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