You raise an important question, one that I don’t have a good answer for, despite having been part of the amateur radio community for 15 years.

Here’s how I’d approach this.

In the case of natural disasters, there’s often frequencies set aside for emergency traffic, which presumably is the way to get messages into a disaster zone.

If you’re describing that, then I suspect that the amateur radio emergency organisation in your country is the place to start, which raises the questions, which one and how?

If you’re describing something less than a natural disaster, talking to your local amateur radio club might be a better way to go, with the same questions.

If I had HF access right now, I’d get on air and make noise for you, but I don’t.

Finally, what message are you trying to get where?

That seems odd to ask on a public forum, but anything we do on HF is going to be public, more so than here on Lemmy.

It means your coffee pod machine just came online and the coffee is currently spewing from the spout … probably.

Always!

Here’s the thing … as crazy as a notebook with passwords sounds, it’s not accessible to someone across the internet.