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using ultrasound + tone generator to jam an entire citys' wireless signals?
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2020-12-03 at 4:26 AM UTCsaw a defcon about this years ago but can't seem to find it, and apparently only works with gsm, but i still find it interesting.
anyone have a link? -
2020-12-03 at 4:39 AM UTCHow would you create an ultrasound broadcast?
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2020-12-03 at 4:53 AM UTC
Originally posted by Jesus is king How would you create an ultrasound broadcast?
there's a lot of ways, regular speakers can often do this, and piezos
https://hackaday.com/2017/05/04/ultrasonic-tracking-beacons/#more-255529
https://dsp.stackexchange.com/questions/50578/ultrasonic-interference-with-electromagnetic-waves
Originally posted by infinityshock lovingly allowed lard-ass lanny the luxury of lapping the loins-leviathan while the little lad larps as a laotian ladyboy lapdancer---.0101110--1-1-----10.-110.1011-----...-.1.0-1-.1010-10--01-010-----1.-.1--1----.-1----000011---(banned) dont waste your time. its another one of those examples of someone who thinks theyre smarter than everyone else making up stupid shit to fuck with the slow kids who are too stupid, gullible, and shortsighted to realize it.
same as tide pods, ice bucket challenge, and the term 'lol'
i just find it interesting, like i said, it's outdated for most systems it would seem if i recall correctly. i don't think the guy who talked about this in defcon thought he's smarter than everyone, it was just something some of us find interesting.
microphones can also be jammed using ultrasound -
2020-12-17 at 8:12 PM UTCanother thing, this info seems to have been scrubbed from google and any other search engines. if it weren't legit they wouldn't have scrubbed it.
also, figures the resident DoD schill would chime in attempting to discredit the method -
2020-12-17 at 8:29 PM UTCin b4 op gets a harm dropped on him
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2020-12-17 at 8:41 PM UTCI used to kick people off wifi in coffee shops and watch them go up to the counter to ask. Its pretty petty but extremely easy with aircrack and deauth.The following users say it would be alright if the author of this post didn't die in a fire!
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2020-12-17 at 9:29 PM UTC
Originally posted by Nil in b4 op gets a harm dropped on him
Eh?
Originally posted by Sudo I used to kick people off wifi in coffee shops and watch them go up to the counter to ask. Its pretty petty but extremely easy with aircrack and deauth.
being a script kid was fun back in the old days.
i'm almost positive one of you gremlins has info on this method. not so much interested in the method, as that's easy to test, i just want to watch the old defcon about it.I am currently working on ultrasonic frequencies (20 kHz-60 kHz). According to a news snippet I found:
The state government has also tried employing ultrasonic guns that can scare monkeys away and create van vatika or small sanctuaries for different troops. The plan to use ultrasonic guns, which cost Rs 20,000 each, was shelved after municipal officials said the ultrasonic frequencies jammed phone and internet services.
an audio amplifier plus ultrasound tone generator should do the trick. ultrasoound doesn't travel far so you'd have to amplify the fuck out of it -
2020-12-17 at 9:59 PM UTChow the fiuck are sound waves supposed to affect radio sprectrum?
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2020-12-17 at 10:14 PM UTC
