Broadcasting is the electronic transmission of radio and television signals that are intended for general public reception, as distinguished from private signals that are directed to specific receivers. broadcasting may be described as the systematic dissemination of entertainment, information, educational programming, and other features for simultaneous reception by a scattered audience with appropriate receiving apparatus. Broadcasts may be audible only, as in radio, or visual, or a combination of both, as in television.

1. WARDA MARYAM
WARDA.CHOUDRY@OUTLOOK.COM

2. BROADCASTING
• BROADCASTING IS THE ELECTRONIC TRANSMISSION OF RADIO AND TELEVISION SIGNALS THAT ARE
INTENDED FOR GENERAL PUBLIC RECEPTION, AS DISTINGUISHED FROM PRIVATE SIGNALS THAT ARE
DIRECTED TO SPECIFIC RECEIVERS. BROADCASTING MAY BE DESCRIBED AS THE SYSTEMATIC
DISSEMINATION OF ENTERTAINMENT, INFORMATION, EDUCATIONAL PROGRAMMING, AND OTHER
FEATURES FOR SIMULTANEOUS RECEPTION BY A SCATTERED AUDIENCE WITH APPROPRIATE
RECEIVING APPARATUS. BROADCASTS MAY BE AUDIBLE ONLY, AS IN RADIO, OR VISUAL, OR A
COMBINATION OF BOTH, AS IN TELEVISION.

3. SIGNIFICANCE
• THE PRIMARY PURPOSE OF BROADCASTING MEDIA IS TO BROADCAST AND
COMMUNICATE WITH THE PUBLIC.
• BROADCASTING LETS THE MASSES KNOW ABOUT EVERYTHING THAT HAPPENS
AROUND THE WORLD, AS WELL AS IT IS USED FOR ENTERTAINING PEOPLE. IN
SIMPLE WORDS, IT CAN BE CALLED THE WHOLE PACKAGE OF BROADCASTING
INFORMATION, ENTERTAINMENT, AND NEWS.

4. TYPES OF BROADCASTING
• TELEPHONE BROADCASTING (1881-1932)
• RADIO BROADCASTING (1906-1920)
• TELEVISION BROADCASTING (1925-1930)
• CABLE RADIO AND TELEVISION (1928)
• DIRECT BROADCAST SATELLITE
• WEBCASTING

5. LIVE BROADCASTING
• LIVE TV
• LIVE RADIO
• INTERNET TV
• INTERNET RADIO
• LIVE BLOGGING
• STREAMING MEDIA

6. LIVE TELEVISION
• BROADCASTING IN REAL TIME
• USED FOR ATTRACTING VIEWERS
THROUGH ENTERTAINMENT
1. ENTERTAINMENT
2. NEWS
3. TV EPISODES
4. SPORTS

7. LIVE RADIO
• BROADCAST WITHOUT DELAY
• USED TO LISTEN
1. DRAMAS
2. COMEDIES
3. QUIZ SHOWS
4. CONCERTS

8. INTERNET TV
• ONLINE TELEVISION
• CONNECTED THROUGH INTERNET
• DIGITAL DISTRIBUTION OF TELEVISION
• VIDEO STREAMING TECHNOLOGY

9. INTERNET RADIO
• AUDIO SERVICE THROUGH THE INTERNET
• MUSIC STREAMING ON INTERNET-WEBCASTING
• ACCESSIBLE FROM ANYWHERE

10. LIVE BLOGGING
• COVERAGE OF AN ONGOING EVENT
THROUGH BLOGGING/VLOGGING
• INCREASED IN USAGE BY NEWS
ORGANIZATION
• LIVE TV AND RADIO RELEVANCY

11. MEDIA STREAMING
• DELIVERING MEDIA PROCESS
• RECEIVED BY USER AND
DELIVERED BY PROVIDER
• AUDIO VIDEO STREAMING

12. DIGITAL AUDIO BROADCASTING (DAB)
• ANALOGUE RADIO SYSTEMS STILL
FOLLOW THE BASIC RULES OF
FREQUENCY MODULATION
• QUALITY OF TRANSMISSION VARIES
GREATLY DEPENDING UPON THE
MULTI-PATH EFFECT AND
INTERFERENCES.
• PROVIDES SOUND QUALITY,
RESISTANCE TO INTERFERENCE, AND
MULTI-PATH PROPAGATION EFFECT.

13. ADVANTAGES OF DAB
➨IT OFFERS HIGH-QUALITYAUDIO SERVICES LIKE CD QUALITY.
➨IT OFFERS MULTIMEDIAAND DATA SERVICES USING THE SAME RECEIVER WHICH INCLUDE TEXTS,
GRAPHICS, NEWS, ETC.
➨IT SUPPORTS A WIDE RANGE OF EQUIPMENT SUCH AS FIXED, PORTABLE, AND MOBILE RECEIVERS.
➨IT USES THE FREQUENCY SPECTRUM MORE EFFICIENTLY.
➨IT SUPPORTS FLEXIBLE BIT RATES RANGING BETWEEN 8 TO 384 KBPS.
➨IT USES LOW TRANSMISSION POWER.
➨IT OFFERS HIGHER ROBUSTNESS AGAINST MULTIPATH INTERFERENCE.
➨IT SUPPORTS LARGER COVERAGE COMPARED TO AM/FM SYSTEMS.
➨DAB SERVICES CAN BE TRANSMITTED IN FLEXIBLE MULTIPLEX CONFIGURATION.
➨ERROR CORRECTION MODULE IS PART OF THIS DIGITAL BROADCASTING SYSTEM.
➨DAB SUPPORTS MORE STATIONS COMPARED TO AM/FM.
➨DAB RADIO RECEIVERS TUNE THEMSELVES AUTOMATICALLY.

14. TRANSPORT MECHANISM
• MAIN SERVICE CHANNEL MSC
• CARRIES ALL USER DATA, I.E. AUDIO, MULTIMEDIA
• CONSIST OF COMMON INTERLEAVED FRAMES
• FAST INFORMATION CHANNEL
• CONTAINS FAST INFORMATION BLOCKS
• CONTROLS ALL THE INFORMATION REQUIRED FOR INTERPRETING THE
CONFIGURATION AND CONTENT OF MSC

15. HOW DAB WORKS?

16. DIGITAL VIDEO BROADCASTING
• DIGITAL VIDEO BROADCASTING (DVB) IS
A SET OF STANDARDS THAT DEFINE
DIGITAL BROADCASTING USING DVB
SATELLITE, CABLE AND TERRESTRIAL
BROADCASTING INFRASTRUCTURES.
• IN THE EARLY 1990S, EUROPEAN
BROADCASTERS, CONSUMER EQUIPMENT
MANUFACTURERS AND REGULATORY
BODIES FORMED THE EUROPEAN
LAUNCHING GROUP (ELG) TO DISCUSS
INTRODUCING DIGITAL TELEVISION
(DTV) THROUGHOUT EUROPE.

17. ADVANTAGES OF DVB
• AN INCREASE IN THE CAPACITY OF BROADCAST TRANSMISSION NETWORKS BY IMPROVING SPECTRUM EFFICIENCY
(I.E. MORE DATA CAN BE TRANSMITTED PER UNIT BANDWIDTH)
• PROVISION OF BETTER SIGNAL QUALITY WHICH INCREASES ROBUSTNESS TO INTERFERENCE AND PICTURE
DEGRADATION
• THE SUPPORT OF HD SERVICES AND INTERACTIVITY
• A POTENTIAL REDUCTION IN TRANSMISSION NETWORK ENERGY USAGE
• THE IMPLEMENTATION OF SINGLE FREQUENCY NETWORKS (SFNS) INSTEAD OF THE INDEPENDENT PARALLEL
NETWORKS WHICH ARE COMMON IN ANALOG BROADCASTING.
• THE TAKE-UP OF DIGITAL TV IS LIKELY TO BOOST SALES OF TV SETS AND DIGITAL VIDEO RECORDERS
• DIGITAL TV COULD LEAD TO POSITIVE UPSTREAM BENEFITS IN TERMS OF INCREASED TIME SPENT WATCHING TV
AND GREATER DEMAND FOR DIGITAL CONTENT
• IN A COMPETITIVE MULTI-CHANNEL, MULTI-PLATFORM ENVIRONMENT, DTT PROVIDES OPPORTUNITIES FOR
TERRESTRIAL BROADCASTERS TO ADDRESS THE CHALLENGES POSED BY PAYTV OPERATORS AND THE INTERNET.

18. HOW DVB WORKS?