We have a defense budget. Deploy some troops or hellfire the jamming operator
With each hellfire costing upwards of $150k per shot, it's not cost effective to use them to shoot down jammers
Cheap GPS jammers are filling the world with navigation dead zones
141–150 of 243 posts
Re: Cheap GPS jammers are filling the world with navigation dead zones
#142Re: Cheap GPS jammers are filling the world with navigation dead zones
#143I wish there were cheap Bluetooth jammers to prevent speakers from playing when hiking
Should be easy to purchase a 2.4GHz jammer, about as easy as to get in trouble for using it though.
Re: Cheap GPS jammers are filling the world with navigation dead zones
#144Re: Cheap GPS jammers are filling the world with navigation dead zones
#145I wish there were cheap Bluetooth jammers to prevent speakers from playing when hiking
Heh yeah the 'oh god 2 minutes with my own thoughts !? Must blare music to stop the pain' or 'look at me, the main character' crowd lol
Re: Cheap GPS jammers are filling the world with navigation dead zones
#146What I want is a tiny portable bluetooth jammer for those who insist everyone in public must be listening to their music. Sadly they are too clunky to haul around each day.
This guy has an open schematic: https://github.com/cifertech/RF-Clown You can use their files to make one via a pcb vendor like jlpcb or you can look for someone who has already done that: https://www.tindie.com/products/ryanyu/rf-clown-v20-esp32-wi...
These "solutions" always seem too broad with too much collateral damage. Would this be doable to do with a directional antenna or something instead, so you could aim at the specific speaker (in your own house) you want silenced?
Re: Cheap GPS jammers are filling the world with navigation dead zones
#147I wish there were cheap Bluetooth jammers to prevent speakers from playing when hiking
Check this out: https://github.com/sammwyy/bleeding
BLEeding is a tool that allows you to jam Bluetooth (BR/EDR) and BLE devices. It can be used to spam DeAuth requests or L2CAP ping requests. It supports Linux, macOS, Windows and Raspberry PI.
Re: Cheap GPS jammers are filling the world with navigation dead zones
#148Earlier quoted context omitted.
Antenna tech has moved way beyond what was possible in the days GPS was invented. Planar arrays and MIMO are ubiquitous and cheap. These antennas have a very good idea of where the signal is coming from, due to delay measurements and can detect and filter ambient noise. They are super hard to jam. The reason why drones have become such a PITA is that these inexpensive antennas are very hard to defeat even with milita…
The tech is already there, but the reason those antenna are not widely used is that they used to fall under ITAR, so no US companies want to touch those for civilian uses. Of course Turkey and China is not US so they don't give a damn about ITAR compliance, and so you can buy those anti jam antennas out of alibaba. Brad Parkinson, the father of GPS and PNTAB, they've been trying to lobby the US government to remove I…
There's also a bunch of Western stuff you can buy off the shelves. MIMO tech is standard in every Wifi 5+ router, Cars have pretty sophisticated electronically steered radars nowadays, boats even more so. 5G towers also have phased array antennas. This tech is everywhere in consumer or industrial stuff.
Not sure what makes an antenna/sensor ITAR restricted, I suspect if you try optimizing it to military use-cases, you'll get hit with ITAR, but I suspect Brad Parkinson is right - security through obscurity just doesn't cut it any more.
I remember in the 90s, computer security was either missing or an afterthought (you could bypass the Win98 password prompt by pressing escape in the release version). Thankfully the industry got together and figured it out.
Now everyone else needs to follow suit. We already have a bunch of examples of assuming security does not matter (hackable cars, meters that can be switched with a Flipper zero).
Re: Cheap GPS jammers are filling the world with navigation dead zones
#149Earlier quoted context omitted.
GPS jamming is fairly detectable right? I wonder if we could create some crowd souced map of jammers. I think this kind of already exists as fairly course data but if a bunch of people installed fixed GPS sensors at home and wired them up to note every time their location lock is lost or moves. It could create a hyper detailed map of where the jammers are and track them moving in realtime.
They're easy to find, but not necessarily with stuff from off the shelf. Professionals with the right equipment though have no trouble locating them. The FCC is happy to hand out 5 and 6 digit fines for operating a GPS jammer and has fined retailers tens of millions for selling them.
I know we all like to jack ourselves raw to the big powerful government handing out ruinous fines for things we don't like but realistically none of that is gonna stick to some McDonalds manager who's got a side gig importing Alibaba stuff or some delivery driver who bought it. You can't get blood from a stone. You're just guaranteeing the stone always stays a stone.
Yeah the FCC could probably pull an ATF and shoot a bunch of people over fairly petty crimes but that costs political goodwill that I'm not sure the FCC has to burn.
Re: Cheap GPS jammers are filling the world with navigation dead zones
#150Earlier quoted context omitted.
> sustaining human life Not really. Drone ships are very much a thing these days.
How can a drone ship hold its designated position while it's blocking gps?
By stopping jamming for a few seconds every few hours , and navigating using dead reckoning in between? With just a compass, a log, and a watch I can sail for days and end up within two kilometers of my destination.