Recently, as the number of protests calling for the impeachment of the president has gathered in Yeouido and Gwanghwamun areas in Seoul, there have been a series of cases where mobile phones do not explode, and old smartphones equipped with the "terrestrial DMB" function are attracting attention.
According to the industry, witnesses say they were able to see the progress of the impeachment vote in real time thanks to a mobile phone operated by the terrestrial DMB at the protest site.
Unlike mobile communication networks, terrestrial DMB receives radio waves through antennas and watches broadcasts, allowing people to watch broadcasts without communication problems even when crowds gather.
However, the terrestrial DMB feature is not on the latest smartphones and is mainly installed on Android smartphones released before 2020.
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