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INTRODUCTION AUX RADIOCOMMUNICATIONS

When was radio communication invented?
The first practical radio communications systems, developed by Guglielmo Marconi in 1894–1895, transmitted telegraph signals by radio waves, so radio communication was first called "wireless telegraphy".
What is a radio communication link?
RADIO COMMUNICATION LINK Different radio communication links (land, land-to-air, air-to-air) covering different atmospheric and ionospheric conditions, include several components having a plethora of physical principles and processes, with their own independent or correlated working characteristics and operating elements.
What was radio used for in the first two decades?
During radio's first two decades, called the radiotelegraphy era, the primitive damped wave radio transmitters could only transmit pulses of radio waves, not the continuous waves which were needed for audio modulation, so radio was used for person-to-person commercial, diplomatic and military text messaging.
What can we learn from radio?
In this first chapter, we explore those principles and the different ways in which people communicate. We also look at radio waves and learn how radio technology is able to make your voice heard many miles away.

When was radio communication invented?