a concise ppt on radio

1. Prepared by:
SWAFIN SHAD
FATHIMA DIYA

2.  FM broadcasting is a method of radio broadcasting using
frequency modulation (FM). Invented in 1933 by American
engineer Edwin Armstrong, its a sound communication by
radio waves, usually through the transmission of music,
news, and other types of programs from single broadcast
stations to multitudes of individual listeners equipped with
radio receivers.

3.  FM broadcasting began on 23 July 1977 in Chennai, then Madras,
and was expanded during the 1990s, nearly 50 years after it
mushroomed in the US. The country first experimented with private
FM broadcasts in the small tourist destination of Goa and the large
metropolitan areas of Delhi, Kolkata, Mumbai and Chennai. The fm
broadcasting in india began in 1977, but boomed after 2001 when
the privatisation of FM broadcasting began.

4.  A radio broadcasting system can only work with the necessary radio
equipment (the transmitter and receiver, with both having an antenna
and necessary essentials like a microphone or loudspeaker).

6.  In FM broadcasting, the frequency of the carrier wave is modulated
to encode the sound. A radio receiver extracts the original program
sound from the modulated radio signal and reproduces the sound in
a loudspeaker.

7. Functions Dysfunctions
• Portable
• Cheaper
• Does not affect eyesight
• Less distracting
• Increases imaginative power
• Only an audio medium
• Affected by weather
• Coverage issues
• Frequency adjustment
• Less and limited variety of
channels to select

8. 1. Times of India
2. BBC
3. Radio mango
4. Club FM
5. Hindustan times
6. Mid day
7. IIT Kanpur radio

9.  Radio is a revolutionary discovery in the humankind’s history
and it continues to be the part of humanity to a very large
extent.
 As it is only an audio medium, it caters the needs of illiterate
people too, which is why radio gained popularity in our
country.
 Radio lost its popularity in the last years but it is in the path
of resurrection as new gen journalists are very keen to use
the wide possibilities of the medium.