I am looking for technical solutions to establish resilient, long-term communication channels that can bypass such shutdowns. What are the most viable options for peer-to-peer messaging, mesh networks, or satellite-based solutions that don't rely on local ISP infrastructure?
If you have a phone or cellular dongle with a serial interface you might be able to initiate a “data” call which gives you a modem-like link at speeds much higher than running an actual modem on the audio path. Note that this kind of non-standard usage will stand out like a sore thumb so might not be advisable.
And you know, I'm fairly sure being able to talk to the outside world makes it so that you can at least get information out to others.
Pray tell, what methods do YOU have to bypass a shutdown with privacy and no reliance on ISP and resistant to jamming?
Amateur radio transmissions are public, unencrypted, and attributable. Callsigns are required, modes and frequencies are well known, and transmissions are trivially direction-findable. In a country like Iran, where RF spectrum is actively monitored and unauthorized communications are treated as a security issue, transmitting on amateur bands is effectively broadcasting your location and intent. Direction finding is routine, fast, and does not require exotic equipment. One transmission can be enough.
In the US and most other countries, amateur radio is tightly regulated. Encryption to obscure content is explicitly prohibited. Ignoring this can result in fines, seizure of equipment, and loss of license. Foreign operators encouraging or participating in such use are not insulated from consequences simply because the target country is authoritarian.
I did not claim to have a better solution. That's the point. When the threat model includes surveillance, attribution, and enforcement, there may be no safe civilian workaround. Suggesting amateur radio in this context is not “imperfect but helpful”, it reflects a fundamental misunderstanding of what amateur radio actually is and how it is regulated.
Amateur radio can't provide privacy, safety, or reliable information flow under an active crackdown. Pretending otherwise is irresponsible.
So they can do what with it? The people who can action it already have intensive satellite imagery of the area and domestic intelligence assets. The level of risk to reward for a citizen to do this is fairly low.
https://hackaday.com/2016/03/08/how-low-can-you-go-the-world...
also
https://en.wikipedia.org/wiki/WSPR_(amateur_radio_software) https://wsjt.sourceforge.io/wsjtx.html
plus the super simple "Fireball QRP transmitter"
https://www.worldradiohistory.com/Archive-DX/73-magazine/73-...
I'd be more worried about them being able to triangulate the radio signals though. If they can jam GPS, surely they can detect a 100W signal around 14MHz.
That way, we might end up with enough nodes such that mesh networking comes within reach.
You can combine the phone tree with literal runners -- so basically, someone takes their burner and calls suburbs A,B,C and D and then the runners go out and pass the word about the protest or action.
For OP's situation I think runners and a store and forward system like Scuttlebutt/Briar/etc might work better. But I'd love to see a couple of thorough case studies on that kind of system, they've been around for many years targeting related scenarios.
I think the issue is more that getting a message many kilometres out using a couple of nodes sitting in non prime locations is just unreliable. The noise is too high. There’s also a limit on how many messages can be sent while using flood routing.
I don't think it's the noise that's too high, my original understanding of the meshtastic 2.0 protocol (from this video: https://www.youtube.com/watch?v=7v6UbC5blJU) was that an edge device would receive priority. So the message might go the wrong direction, say. Or, worse, a meshtastic radio in a basement might get priority.
Because they didn't understand (or care about) network topologies from the start and reliable message transmission, not to mention the versions of devices that are still on their network, I'm guessing it's gonna be a couple more years before they finally get their act together.
Ideally cjdns or similar can be used inside the country to create an alternative encrypted mesh network inside the borders, with some "exit nodes" out.
Be aware though that transmitting on any radio is like turning on a giant, extremely bright light bulb directly above your antenna. Anyone with basic radio know-how will be able to hear you and locate you.
Contents can be re-shared locally over ad-hoc or mesh WiFi networks even without Internet access.
Encryption and steganography can obscure the contents of drives from casual inspection. You can stuff a lot of extraneous data in Office XML documents that are just zip files and look innocuous when opened.
1. For current events content add descriptions, locations, and timestamps to everything. The recipients need that context.
2. Even unencrypted files can be verified with cryptographic signatures. These can be distributed on separate channels including Bluetooth file transfers.
3. Include offline installers for browsers like Dillo or Firefox. Favor plain text formats where possible. FAT32 has the broadest support in terms of file system for the flash drives. Batch, PowerShell, and bash scripts can also be effective in doing more complex things while not needing local installation or invasive installations on people's computers.
I suppose this isn't complete without mentioning RFC 1149 (IP Datagrams on Avian Carriers).
If you're going the radio route these come to mind:
Meshtastic: 1W, one band, local. Useful if Iran doesn't know about it. But easy to jam and probably triangulate.
Wifi Halow: 1W, can possibly hop between bands, but probably also really easy to jam and triangulate.
WSPR: Possibly good, transmitters can hide in the noise floor, and can go long distances with 100mW of power, but slow. Probably triangulable, very easy to jam once located in the spectrum. Data can be transmitted and received with off the shelf components.
Military Radios: Very good. Transmitters can frequency hop, making triangulation and jamming difficult. Also encryption. You can easily transmit in the same frequency space that Iran would be using to avoid jamming. But also, mostly unobtanium. I have heard stories about US military radios showing up at Ham Fests.
You'd have to have a huge network spanning the entire country to get a message out however
toomuchtodo•5h ago
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