>with a $10 cable and an Android app, you can transmit digital data using analog radio signals Yeah ok how is this not magic anyway?
>>65151030>Retard unintentionally discovers the core origin theory behind the entirety of modern telecommunications Google what "baud" is lol
>>65151100It's still pretty cool
>>65151030>how is this not magic>>65151100>unintentionally discovers the core origin theory behind the entirety of modem communication Ftfy. Wait until he sees the very first FAX machine. These threads always suck so much. .
>>65151030I love fuckin around with radios but we are in a mesh network era. I honestly think a cheap node device is a better buy than a nondigital uhf/vhf.
You can bang bits through the air in software with the digital I/O ports of some microcontrollers and a few simple components.Hell, I saw one contraption that exfiltrated data from a computer by modulating its electromagnetic interference signature with different CPU usage patterns, or something.It's just not very hard to do things at these frequencies with modern circuits.
>>65152335>I sawCitation required.
>>65152399Probably something like https://arxiv.org/html/2409.02292v1 , though that one used RAM activity.There are many techniques like this, which is why truly secure buildings have TEMPEST shielding.You might be kind of fucked already if an attacker is able to run code on your computer, but there have been attacks that can collect non-zero amounts of information through measuring time in a web page's script and analyzing the jitter (which is why many web browsers refuse to give pages 100% accurate timestamps, though there are other ways to acquire those).And with something like this, it might be possible to transmit it out without the computer seemingly sending anything.
>>65151030Which app are you using?
>>65152335Bro that is the kind of bullshit they tell you when they used a backdoor
monitoring this thread
Anyone running the X6100? How is it?
>>65151030>yeah you know that thing you always have on you which has been proven countless times to record every. Thing.>everything>it takes screenshot and camera snapshots constantly, records audio and transmits it live,>it even saves every piece of text you've copied and web or app form you've filled out>yeah that thing>did you know you can make it listen to radio beep boops and decode it as a text message
>>65153093The xeigu x6100 is a relatively old design by now so unless its discounted i wouldnt waste my money.A pure SDR like it doesn't perform all that well compared to other stuff.
>>65151030I want to take advantage of this thread, and ask what the hell I can do with meshtastic to help my local community? I love hiking and I live near a big ass mountain range. Can I set up little by little, some Heltec nodes at the top of the mountain with enough batteries for them to last years and make it so everyone can use them as repeaters? They are relatively inexpensive, and I want to use them as an excuse to go hiking even more
>>65153532Most people aren't going to be knowledgeable enough or radio smart enough to use that. If you want to do neat shit you can setup a simple mesh intranet and have a file server tied to it you can use to help randos via holy shit a wifi network out here, what's this it redirects to this website with maps, contact info for emergency services and a chat app??
>>65153543Wtf I didn't know you could do that. Sounds neat. So I could theoretically make it, as people can link their phones to my "wifi", even if only to chat with a local park ranger or emergency services?
>>65153551Depends entirely on your setup. Mesh networks can literally be over any communication channel. If you're using radio radio equipment you can't just broadcast wifi, but if your nodes have wifi for local connection and then use the radio for its outer data link you could set the scenario I described
