91Â鶹¹ú²ú¾«Æ·×ÔÅÄ

Presenting a World Radio Day Minute. Proclaimed in 2011 by UNESCO and endorsed by the United Nations General Assembly in 2012 as a UN International Day, February 13 is World Radio Day…

As a consumer electronics appliance, radio has been through many configurations since first appearing on store shelves in the early 20th century. It’s been mostly AM which stands for amplitude modulation and FM which means frequency modulation. But we mustn’t forget that short wave and ham radio have also been important during these hundred-plus years. There was even a time when radio was listened to with headphones on simple non-powered devices called crystal sets. Today AM/FM radios come with a variety of power sources including batteries, solar panels and cranks to generate energy. Now, in the digital era, we have DAB radio, satellite radio, streaming radio and the development of radio-style innovations such as podcasting. Radio continues to evolve! This has been a World Radio Day minute from UNESCO.

on this subject: World Radio Day 2024