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JulianOliver, to random
@JulianOliver@mastodon.social avatar

For those of you in Te Whanganui-a-Tara / Wellington, I'm launching a new piece, 'The Closed World', next week at the Dominion Observatory. Commissioned for the ADA Symposium, 2024, it has been a very interesting challenge putting this piece together.

I look forward to sharing a project page for The Closed World soon.

https://ada.net.nz/uncategorized/the-closed-world-julian-oliver/

JulianOliver,
@JulianOliver@mastodon.social avatar

Ought to mention also that on the 25th I'll be opening the symposium with a new lecture, 'Machine Cult'. Hope to see some of you there!

https://ada.net.nz/uncategorized/keynote-one-machine-cult/

JulianOliver,
@JulianOliver@mastodon.social avatar

@theowatson Yay, thanks friend!

evnnbd, to random
@evnnbd@mamot.fr avatar

Hey @JulianOliver
I just want to let you know that the discourse page of criticalengineering.org is down.

JulianOliver,
@JulianOliver@mastodon.social avatar

@evnnbd Thanks, on it!

JulianOliver, to random
@JulianOliver@mastodon.social avatar

For fellow RF geeks out there, an entertaining chart for getting your comms on in the current EM conditions. From https://hamradiofornontechies.com/current-ham-radio-conditions/

JulianOliver,
@JulianOliver@mastodon.social avatar

Caved and set up the Buddipole. Will see if I can catch any solar bursts on 40m and 20m in radio land. Upconverter on battery to RTLSDR. Living dangerously, straight into lappie, gulp.

Nooelec Upconverter and RTL SDR

JulianOliver,
@JulianOliver@mastodon.social avatar
JulianOliver,
@JulianOliver@mastodon.social avatar

Excellent descrip of what I saw last night & into this morning, even during the entry R1 Blackout level. I was surfing the 40/30/20m bands & found an eerie & persistent 'quiet earth' that I had never before seen.

Why? During intense solar storms the lower ionosphere becomes extremely electron-dense, and so radio reliant on ionospheric bounce loses energy - becoming degraded or lost altogether - due to increased collisions in this new high-density environment:

https://www.swpc.noaa.gov/phenomena/solar-flares-radio-blackouts

JulianOliver, to random
@JulianOliver@mastodon.social avatar

Nasa says the solar storms could continue over the weekend. A good time to get the SDR out and look for EM blasts in radio land

https://edition.cnn.com/2024/05/10/business/sunspots-disrupt-phones-gps-scn/index.html

https://spaceweather.app/

JulianOliver,
@JulianOliver@mastodon.social avatar

Must be a bit of excitement in the ISS right now.

JulianOliver,
@JulianOliver@mastodon.social avatar

@alex As I understand it it's both. Will try to confirm.

JulianOliver,
@JulianOliver@mastodon.social avatar

@alex Yes it seems you are right. Editing the post.

JulianOliver,
@JulianOliver@mastodon.social avatar

@alex Thanks, aware of that. My source info was out of context. Fixed!

JulianOliver,
@JulianOliver@mastodon.social avatar

@alex wow! What a 0-30 MHz RF waterfall would have looked like 100+ years ago, just noisier.

JulianOliver,
@JulianOliver@mastodon.social avatar

@alex So eerie.. If the noise is even pattern across spectrum, and in/outside the shack, could be line noise (balun, mode choke?). Sometimes moving the SDR to a new host can help, little embedded boards are quietest IME.

JulianOliver,
@JulianOliver@mastodon.social avatar

RNZ taking it seriously, front page. Good to see.

Backup power sorted at home, in case the space weather gets particularly wild.
https://www.rnz.co.nz/news/national/516558/transpower-disconnects-some-north-island-power-assets-due-to-solar-storm

JulianOliver,
@JulianOliver@mastodon.social avatar

We've hit G4, and entered R1 blackout. Loving this.

JulianOliver,
@JulianOliver@mastodon.social avatar

Spent years studying and making jammers, and yet the true Teacher is a vast churning sphere of electromagnetic fire.

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