So… I found out a way to send encrypted messages using amateur radio.
There is an app called Rattlegram that lets you convert a string of text into soundwaves that plays though your phone’s speaker. If I just use an app like Secure Space Encryptor (SSE) to encrypt a text, then copy-paste it to the Rattlegram app, then transmit that over radio, then using the same app to record the sound and reverse the process on the other end. Voila! Encrypted long(ish) range communications without a centralized server!
But I looked it up and apparantly its illegal to encrypt communications over the amateur radio bands. What are the odds of actually getting in trouble? 🤔
(To the FCC agents reading this: this is just a hypothetical, a thought experiment, I’m totally not gonna do this 😉)
It’s fine, but you need to have an error correction layer.
Digital-over-analog methods like QR codes or modems are some examples.
I mean, it’s certainly possible. But given that you’re trying to keep the audio as legible speech, the bandwidth would probably be horrendous.
Yeah for sure! I’d be happy to encode a single word in a minute of audio.