this post was submitted on 19 Sep 2025
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Science Memes

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[–] einfach_orangensaft@sh.itjust.works 38 points 1 day ago (2 children)

this is good for the 11m CB radio people

[–] 667@lemmy.radio 10 points 1 day ago

And 10m Amateur Techs!

[–] pelespirit@sh.itjust.works 10 points 1 day ago (1 children)

Can you tell me why that would be?

[–] cRazi_man@europe.pub 19 points 1 day ago (3 children)

I'm guessing if a solar flare takes out communication infrastructure then CB radios will still work.

[–] frezik@lemmy.blahaj.zone 24 points 1 day ago* (last edited 1 day ago)

Not that. It creates atmospheric conditions where certain bands can bounce off the ionosphere and transmit beyond the horizon. Hams can get pretty damn far around the whole globe.

Edit: I was checking on the details of how far hams can go, and Google's AI slopped this out:

The "longest ham ionosphere bounce" refers to a phenomenon called moonbounce (EME, or Earth-Moon-Earth), which is an amateur radio communication technique that sends signals off the Moon's surface back to Earth, covering a distance of approximately 770,000 kilometers (478,000 miles) round trip...

No, bad LLM! Moonbounce and Ionosphere bounce are distinct things.

[–] Im_old@lemmy.world 9 points 1 day ago (2 children)

Hum, why would CB radios still work? It would fry any kind of equipment with wires. In 19th century when that big flare event happened the telegraph lines caught fire. Anything with a filament inside would fry.

[–] theneverfox@pawb.social 7 points 1 day ago

Not filliments, conductors. Such as the ones running through through your home

You can build a basic radio manually with a little bit of know how. If you have spare capacitors, they're likely to survive and be pretty replaceable. You can rig up an antenna out of any wire, it just needs to be the correct length and it'll work to some degree.

If your entire house goes up in flames at once, well, spare parts are probably not on the table

[–] pennomi@lemmy.world 6 points 1 day ago

Telegraph lines are longer therefore have a larger effect during a solar flare.

But yeah, at a certain level, a solar flare would fry everything.

[–] pelespirit@sh.itjust.works 7 points 1 day ago

That makes sense, I thought it would make the signals clearer or something.