3 ms·

I could have used one of these last night on the douchebros in the yard behind our house.

WarOnPrivacy 5y ago
You must live in my neighborhood; they live across the street from me. Sadly, the device looks like an infrared TV-B-Gone. Prob won't work for us.
MrBuddyCasino 5y ago
I doubt they are really selling a BT jammer, as A2DP is really hard to jam due to the frequency hopping. But I would love to buy one for sure!
- vel0city 5y ago
  While its hard to target the particular device, jamming all Bluetooth isn't too hard. My old microwave was pretty effective at jamming darn near everything around 2.4GHz when operating.
  - MrBuddyCasino 5y ago
    > jamming all Bluetooth isn't too hard I've researched, and even with several ESP32s its impossible. There are 79 frequency bands, and one would have to jam most of them. Talking about battery-operated device here, not a 1000W microwave.
    - vel0city 5y ago
      You're approaching a topic of doing something against the rules with hardware that's certified to try and follow the rules as much as possible. If you're going to try and break the rules, its going to be easier to go about breaking it with hardware designed to break the rules, or at least without those rules in mind. There's 80MHz of bandwidth to try and raise the noise floor high enough that normal devices can't communicate. Using Bluetooth chipsets aren't a great idea as they're optimized to think of it as 79 independent channels of which you need to select one. And on that, then try and send something of the standards and all the limitations involved in a normal device. Luckily, 2.4GHz WiFi runs on the exact same frequencies, its pretty easy to get your hands on 40MHz wide channel chips, and they don't have any real considerations as to the protocols and limitations of Bluetooth. Two hackable WiFi chipsets might be able to get you closer to abusing Bluetooth, you'll just want to set it to the wider 40MHz channels on each, ensure you set it to the Japanese frequencies or you'll miss the upper end of the Bluetooth bands, and then start sending out tons of junk at a higher than allowed power level. If you can somehow find something that lets you transmit on 80MHz wide 2.4GHz channels then you'd only need a single chipset to do it, but I'd imagine those would be exceptionally rare. Note: as an amateur radio operator, RF enthusiast, and a fellow human being who likes his devices working, please don't break the rules.
pier25 5y ago
Same. I'd love to buy this device.

You must live in my neighborhood; they live across the street from me. Sadly, the device looks like an infrared TV-B-Gone. Prob won't work for us.

MrBuddyCasino 5y ago

I doubt they are really selling a BT jammer, as A2DP is really hard to jam due to the frequency hopping. But I would love to buy one for sure!

vel0city 5y ago
While its hard to target the particular device, jamming all Bluetooth isn't too hard. My old microwave was pretty effective at jamming darn near everything around 2.4GHz when operating.
- MrBuddyCasino 5y ago
  > jamming all Bluetooth isn't too hard I've researched, and even with several ESP32s its impossible. There are 79 frequency bands, and one would have to jam most of them. Talking about battery-operated device here, not a 1000W microwave.
  - vel0city 5y ago
    You're approaching a topic of doing something against the rules with hardware that's certified to try and follow the rules as much as possible. If you're going to try and break the rules, its going to be easier to go about breaking it with hardware designed to break the rules, or at least without those rules in mind. There's 80MHz of bandwidth to try and raise the noise floor high enough that normal devices can't communicate. Using Bluetooth chipsets aren't a great idea as they're optimized to think of it as 79 independent channels of which you need to select one. And on that, then try and send something of the standards and all the limitations involved in a normal device. Luckily, 2.4GHz WiFi runs on the exact same frequencies, its pretty easy to get your hands on 40MHz wide channel chips, and they don't have any real considerations as to the protocols and limitations of Bluetooth. Two hackable WiFi chipsets might be able to get you closer to abusing Bluetooth, you'll just want to set it to the wider 40MHz channels on each, ensure you set it to the Japanese frequencies or you'll miss the upper end of the Bluetooth bands, and then start sending out tons of junk at a higher than allowed power level. If you can somehow find something that lets you transmit on 80MHz wide 2.4GHz channels then you'd only need a single chipset to do it, but I'd imagine those would be exceptionally rare. Note: as an amateur radio operator, RF enthusiast, and a fellow human being who likes his devices working, please don't break the rules.

pier25 5y ago

Same. I'd love to buy this device.