Why Are We Contented With Analog FM Radio Broadcasting Despite Having Digital Broadcasting Technology?
Radio is one of the oldest technologies in the world. It is used in all the regions of the world with insignificant differences in frequency modulation but the core principle of its technology remains the same. FM radio has become a part of mobile sets today which highlights its high use in our daily lives. However, it is unfortunate to mention that despite having consistent changes in technology all around us in every field and every invention, even in those which came after the radio, like broadcasting has moved from analog to digital in television; it has not had any specific worth mentioning technology up-gradation. The question that pops up now is; why has radio not been upgraded to digital technology?
The answer lies in the fact that we use radio spectrum for digital video broadcasting in television. These radio frequency spectra are used to transmit digital multiplex, which is a bundle of various television channels and other services by using 6-8 MHZ of bandwidth. Obviously, in terms of usage, digital broadcasting in television is making more efficient use of radio frequency spectrum as compared to analog broadcasting, which used the same bandwidth to broadcast only one program. This justifies the change in technology. At this important to mention that radio technology can be moved from analog to digital but it will take years to switch and grand scale technological preparations to make it happen.
To make analog FM switch to digital broadcasting, there are various aspects of technology that should be catered to. For instance, the new technology should offer great sound quality, excellent reception and wider capacity to broadcast more radio channels which in turn will make more efficient use of radio spectrum. And there are many good quality sound devices, having good reception sound broadcasting technologies available today for instance, T-DAB, DRM+, DVB-T, DRM and DVB-T2; but none is good enough to replace the analog radio broadcasting and match to its performance.
For FM radio operations, 250 kHz of bandwidth and 100 to 200 kHz of spacing are required. This combination of bandwidth and spacing varies from region to region. It is because of this change, the technology switch from analog to digital, will be difficult to make. Hence, for a couple of years in future too, we will get entertained by analog radio broadcast!
Concluding, it is significant to mention that technological advancements are always welcome by all, anywhere in the world, because, it adds to the comfort in our lives and also becomes a source of pride for the inventing company. However, the hard fact, which cannot be ignored is the high investment made in technological advancements, in the shape of consistent and dedicated efforts, large amount of financial investments and opportunity cost of investing time, which otherwise could have been invested in some other invention. Hence, before setting out to bring about advancements in any existing technology, it is important have a reality check which will enable you to see if the advancements will provide the real desired output. Same is the case in deciding for upgrading radio analog technology to digital. The advancement should make the operations easier and not difficult!
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