Tag: Baofeng

SirenJack: Hackers can hijack emergency alert sirens with a $35 radio and laptop

Thanks to a flaw in popular emergency alert systems, hackers with knowledge of radio frequencies could remotely hijack the system with as little as a laptop and a $35 two-way radio and activate the sirens, trigger false alarms, or even broadcast any audio of their choosing. The vulnerability, dubbed SirenJack, is in emergency alert systems […]

via HACKADAY: Move Over Baofeng, Xiaomi Want To Steal Your Thunder

To a radio amateur who received their licence decades ago there is a slightly surreal nature to today’s handheld radios. A handheld radio should cost a few hundred dollars, or such was the situation until the arrival of very cheap Chinese radios in the last few years. The $20 Baofeng or similar dual-bander has become […]

via HACKADAY: Measuring Spurious Emissions of Cheap Handheld Transceivers

If you buy an amateur transceiver cheap enough to make a reasonable grab bag gift or stocking stuffer, you get what you pay for. And if this extensive analysis of cheap radios is any indication, you get a little more than you pay for in the spurious emissions department. Amateur radio in the United States […]

They’re listening: What cops need to know about criminals on police frequencies

A sharp young officer in my state recently noticed a hand-held radio on the seat of a car he had stopped, and it seemed to be monitoring police radio traffic. The driver claimed it was a “scanner” as he handed it over, but the officer suspected otherwise. Hearing his own channel coming from the speaker, […]

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