The Most Powerful and Wonderful Medium of Communication – Radio

Radio is an extraordinarily powerful medium of communication. The primary purpose of celebrating World Radio Day is to take radio into remote and rural areas and spread knowledge among the people there. When compared with other modern means of communication—such as newspapers, radio, and television—radio remains the simplest and most accessible. Only literate people can read newspapers, but radio has no such limitation. Even those who cannot read or write can understand the information broadcast on radio. Moreover, it is inexpensive.

Television, on the other hand, requires substantial resources to present an event or topic to viewers. Combining visuals with sound demands transmission technology and costly equipment such as cameras and computers. Radio, however, does not need any of this. News can be broadcast instantly. Newspapers require an owner to bear expenses and readers to pay daily. As for television—no explanation is necessary about its costs. In contrast, radio has overcome the barriers of time, distance, and cost, leaving an indelible mark as the most affordable medium.

All India Radio (AIR) has always upheld discipline and meaningful, elegant Telugu in its news bulletins, talks, and cultural programs. Interestingly, though radio existed for decades, World Radio Day was not celebrated until after the rise of television and FM radio. The celebration of World Radio Day began in 2012.

On February 13, 1946, the United Nations established its own radio service. It was later decided at the 36th session of UNESCO’s General Assembly in 2011 to commemorate that date—February 13—as World Radio Day.

Radio is the simplest, quickest, and most inexpensive means of spreading information. Even in today’s modern age, radio remains a vital source of knowledge. Although its popularity has slightly declined, until a decade ago, over 95% of the world’s population regularly listened to the radio. In developing countries, over 75% of housewives still rely on it for information on various subjects.

Radio – A Rare Friend of Entertainment and Knowledge

Despite the existence of thousands of TV channels and hundreds of newspapers, radio remains the most reliable medium during natural disasters such as cyclones, floods, lightning strikes, earthquakes, and tsunamis. It helps convey weather conditions to affected people and updates governments about their situations, thereby preventing further loss of life and property.

For example, during cyclones like Hudhud, Titli, and Phethai, when power, transport, and communication systems completely collapsed in parts of Andhra Pradesh, people in Visakhapatnam and Srikakulam praised radio for keeping them informed about weather conditions. When cable networks failed and newspapers couldn’t be delivered, radio was their only lifeline.

Even soldiers at war or guarding borders depend solely on radio for communication. Radio has withstood the test of time and competition, establishing itself as a stable and enduring medium. No matter how advanced modern technologies become, radio will never lose its relevance.

The Uniqueness of Radio Programs

Radio uniquely blends education, entertainment, and information. Its wide range of programs—news bulletins, dramas, classical and folk music, agriculture and student programs, rural women and children’s shows, sports coverage, and interactive segments like Manoranjani and Janavani—cannot be found in any other medium.

All India Radio news delivers concise and comprehensive world updates within minutes, unlike the hour-long bulletins of TV channels. Students preparing for competitive exams also benefit from the clear and direct information broadcast on radio.

Radio touches the heart and awakens the mind—it is a medium of awareness and enlightenment. That’s why it continues to enjoy immense popularity. With minimal effort, it provides maximum joy and information.

Radio in India – A Historical Overview

The first radio broadcasts in India began in June 1923, conducted by the Radio Club of Bombay. Later, the Broadcasting Company of India was established. Experimental broadcasts started in July 1927 from Calcutta and Bombay. These broadcasts were carried out under the supervision of the Indian government.

In 1936, All India Radio (AIR) became a government organization. At the time of India’s independence, there were only six AIR stations—Calcutta, Delhi, Bombay, Madras, Lucknow, and Tiruchirappalli.

Today, AIR operates 215 centers and 337 transmitters (144 MW, 54 SW, and 139 FM stations), covering over 99.13% of India’s population with information, education, and entertainment.

The first Telugu broadcast began in 1938 at the Madras station. The first female announcer to speak in melodious Telugu was Mrs. Punnavajjula Bhanumathi, also known as Radio Bhanumathi. Her daughter Jyotsna later became a radio announcer as well.

The first Telugu radio play, Anarkali, was broadcast in June 1938 from the Madras station, featuring renowned artists like Viswanatha Satyanarayana, Vinjamoory Narasimharao, and Muddu Krishna.

Many great personalities—including Kongara Jaggayya, Ushasri, and Prayaga Ramakrishna—worked with All India Radio.

Today, AIR stations are located in Hyderabad, Adilabad, Warangal, Nizamabad, Kadapa, Vijayawada, Visakhapatnam, Anantapur, Kurnool, Kothagudem, and Tirupati.

Growing Popularity in Modern Times

In recent years, radio has regained popularity. With the rise of All India Radio and numerous private FM channels, listeners now compete to tune into their favorite broadcasts. The arrival of TV did not diminish radio’s charm. While television requires sitting in one place, radio can travel anywhere.

Programs like phone-in shows, live broadcasts, sponsored segments, and film music attract massive audiences. People, especially workers and employees, listen to radio while continuing their daily tasks.

Today, radios are built into pens, mobile phones, cars, and other vehicles, becoming a convenient source of both entertainment and knowledge.

Many legendary voices that graced AIR, such as Ushasri’s Ramayana commentary, brought fame to both the medium and the epic itself. Radio gave voice to film personalities, writers, dramatists, and freedom fighters alike.

How Does Radio Work?

Radio communication involves transmitting sound signals through electromagnetic waves at the speed of light, using modulation. The device that receives these signals is called a radio receiver.

In the early days, radios were built using vacuum tubes, which consumed high electricity and were bulky—similar to early televisions. By the 1960s, transistors were introduced, making radios portable and battery-operated.

With continuous technological development, radios became smaller and more efficient. Today, every mobile phone includes a built-in radio application.

Types of Radio Waves

Radio broadcasts use three main frequency ranges:

Medium Wave (MW)
Short Wave (SW)
Frequency Modulation (FM)

Medium Wave: Used for regional broadcasts, typically covering 200–300 km. Stations like Hyderabad and Vijayawada AIR use this range.
Short Wave: Used for long-distance transmission up to 3,500 km. However, the sound quality is lower. International broadcasters like BBC and VOA (Voice of America) have used this method for decades.
FM (Frequency Modulation): Used for short-range broadcasts with high sound quality. Most radio stations worldwide now use this technology. In India, private channels like Radio Mirchi (98.3 FM) and Red FM (93.5 FM) follow this system.

FM waves are blocked by tall buildings or mountains, but wherever they reach, the sound is crystal clear. Some places also have satellite radio and internet radio services.

To compete with new FM stations, All India Radio launched its own FM service “Rainbow”, promoting it through various campaigns.

All India Radio (AIR)

All India Radio (AIR) is the official public service broadcaster of the Government of India, operating under Prasar Bharati, an autonomous body that also oversees Doordarshan television. AIR is one of the largest radio networks in the world.

Its headquarters, Akashvani Bhavan, is located next to the Indian Parliament on Parliament Street, New Delhi. The building houses the Drama Division, FM Service, and National and External Services Divisions, which broadcast 24 hours a day.

Conclusion

Despite competition from advanced communication technologies, radio continues to evolve and reach people with new innovations. It remains a lifeline for listeners, a symbol of resilience, and a living legacy.

Radio lives on—vibrant, timeless, and indispensable.