The radio has made a tremendous contribution to the advancement of humanity as a global medium for communication, entertainment, and knowledge. A technological advancement that a lot of us routinely overlook is the FM radio frequency. But it’s also among the most important electromagnetic waves ever discovered by humans. Because FM has a larger bandwidth, noise interference has a smaller impact on it. Tune attention to the amazing concept of frequency modulation.
History of FM radio
In 1928, Edwin H. Armstrong developed FM or frequency modulation. In the 1950s and 1960s, FM radio became more and more popular as the FCC allowed broadcasters to use additional channels and as FM receivers became more affordable and accessible. FM car radios were first offered by automakers in 1963. The FCC mandated that FM stations cease simulcasting and produce original content for FM transmission in 1964.
The impending golden era of radio didn’t start until after the untimely death of Armstrong. Eventually, listeners discovered that FM (frequency modulation) radio offered higher audio quality than AM (amplitude modulation) broadcasts. As FM bands became a standard feature of radios, the FM audience began to outpace the AM audience by the 1970s.
Benefits of FM radio
Phase modulation served as inspiration for FM radio, but it has proven to be more beneficial in part due to how simple it is to generate and decode. Compared to AM, FM radio offered a number of advantages, such as:
- The choice to multiplex signals so that more than one can be sent at once. Tunes for commercial and retail spaces are frequently played in the wider audio band.
- The capacity to replicate practically all of the audible spectrum in humans is made possible by a broader frequency band. High quality is what this is.
- Because the transmissions don’t interfere with one another as they do with AM radio, stations can be placed closer to one another geographically. With FM, you can only hear one channel at a time, not both.
- The benefit of employing a similar power output while covering a larger region than an AM station. Because of how the FM radio frequency operates, it is possible to reach a larger geographic region and the stations are less expensive to run.
The present culture of FM radio
Today, there are still hundreds of thousands of radio shows and radio stations broadcasting all over the world, therefore FM radio’s history is far from ending. FM radio is essential for anything from entertainment to communications in space. Nothing compares to radio’s capacity to deliver timely advertising and up-to-date news from breaking events.
Radio can air an event more quickly than television can, in part because of the shorter production times and less equipment requirements. With today’s technologies for sending high-resolution audio to the radio station over the Internet and other networks, it is considerably simpler to obtain distant coverage on the radio.