Earlier this month, the Telecom Regulatory Authority of India (Trai) floated a consultation paper on issues related to digital radio broadcasting in India, inviting comments from stakeholders that can be submitted by 4 September. Currently, terrestrial radio broadcast is available in the Frequency Modulation (FM) and Amplitude Modulation (AM) mode with All India Radio (AIR) running 420 stations (AM and FM) that cover almost 92% of the country by area and 99.20% of the country by population. Meanwhile, private sector radio broadcasters transmit programmes in FM mode only. Trai, which has suo motu decided to take up the cause of digital radio broadcasting, claims in the consultation paper that analogue terrestrial radio broadcasting, when compared with digital mode, is “inefficient and suffers with operational restrictions”. It adds that transmission in analogue mode is susceptible to radio frequency (RF) interference, resulting in poor reception quality. Besides, analogue allows only one channel per transmitter. It is “spectrally inefficient as frequency reuse is limited and radio channels require more spectrum per channel”, it says, adding that signal quality could suffer in portable environments such as moving vehicles or on hand-held devices. That is not all. Analogue transmission does not offer the flexibility to provide any value-added services.
Forwarded by :- Shri. Alokesh Gupta,firstname.lastname@example.org