Why Are We Contented With Analog FM Radio Broadcasting Despite Having Digital Broadcasting Technology?
- May 14th, 2010
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FM radio is one technology which became a part of our lives very long ago. It is used widely in all the regions of the world. It is obvious that each region will have different frequency modulation but the core idea of its operations remains the same everywhere. However, it is unfortunate to highlight that despite various technology sophistications, radio has been neglected. Today we have moved from analog to digital broadcasting in television. So the question arises that why has radio not experienced better 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.
There are many digital sound broadcasting technologies present that can provide good sound output with good reception like T-DAB, DRM+, DVB-T, DRM and DVB-T2; but none of these is satisfactory enough so as to replace the analog radio broadcasting. It is important to thoroughly take into account various technological aspects before switching from one technology to another. Factors like the new technology’s ability to provide good quality sound output, ability to receive signals and most importantly, its capacity to make efficient use of radio spectrum by broadcasting more radio channels.
FM radio employs 250 kHz bandwidth with spacing of 100 and 200 kHz, varying as per the region. It is because of this changed combination of bandwidth and spacing that switching from analog to digital in radio broadcasting would be difficult. Hence, we have to remain contented with the analog radio transmission unless the sophistication of the technology rises!
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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