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A comment on Hong Kong protestors using Bridgefy's Bluetooth-based mesh network messaging app. Parent comment

Re:Hong Kong protestors using Bridgefy's Bluetooth-based mes... by Answerawake on Monday September 02, 2019 @10:15PM (#20863213)
Hi Jorge,

Pardon my ignorance but lets say that someone runs a typical cell phone jammer in the area, would that block the Bluetooth signal from working or are RF wavelengths not able to be jammed?

[ Parent | on HN ]
Re:Hong Kong protestors using Bridgefy's Bluetooth-based mes... by petre on Monday September 02, 2019 @10:53PM (#20863381)
They'd have to specifically jam BT or all the public 2.4 Ghz band which includes WiFi and other protocols. Given that a BT jammer can be bought online for less than 100$, it's trivial to block this app over several tens of meters.
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Re:Hong Kong protestors using Bridgefy's Bluetooth-based mes... by jorgeribs on Tuesday September 03, 2019 @10:40AM (#20866902)
Well said petre, that's the perfect answer.
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