ALL INDIA RADIO,RAIPUR

BASIC SETUP OF ALL INDIA RADIO,RAIPUR

INTRODUCTIONMinistry of Information & Broadcasting

PRASAR BHARTI

DOORDARSHAN (VISUAL BROADCASTING)

ALL INDIA RADIO (AUDIO BROADCASTING)

A.I.R., RAIPUR

STUDIO AT GASS MEMORIAL HALL

MW TRANSMITTER AT BHANPURI

FM TRANSMITTER AT GASS MEMORIAL

HALL

ALL INDIA RADIO, RAIPUR

Frequency of station◦ Medium Wave – 981 KHz◦ FM Station – 101.6 MHzTransmitter Power

10 KW for Medium Wave1 KW for FM

Coverage RangeMW – 100kmsFM – 60kms

Technical specification

STUDIO

RECEIVING CENTRE

EQUIPMENTS

ANNOUNCER CONSOLE

STAGES OF A RADIO STATION

Block Diagram of Radio Station

STUDIO CENTRE

The Studio Centre comprises of one or more studios, recording and dubbing room, a control room and other ancilliary rooms like battery room, a.c. rooms, switch gear room, DG room, R/C room, service room, waiting room, tape library.

The studio centres in AIR are categorised as Type I, II, & III.

Type I & II studio has a transmission studio, music studio with announcer booth, a talks studio with announcer booth, one recording/dubbing room and a Read Over Room.

Type III has one additional drama studio. The other types have more studios progressively.

STUDIO CENTRE

MICROPHONE

TURNTABLE & Magnetic Tape Readers

CD\DVD PLAYERS

PERSONAL COMPUTER

ANNOUNCER CONSOLE

EQUIPMENT IN STUDIO

EQUIPMENTS OF STUDIOSPC

Turntable

Microphone

Announcer Console

PROGRAM AMPLIFIER

TO CONTROL ROOM

CONTROL ROOM

Mixing and Switching

FROM AIR DELHI

RNT Receiving Centre

Studio

SWITCHER

ProgramAmplifier

MIXER

For two or more studios set up, there would be a provision for further mixing which is provided by a control console manned by engineers. Such control console is known as switching console. Broad functions of switching console in control room are as follows:

Switching of different sources for transmission like News, O.Bs. other satellite based relays, live broadcast from recording studio.

Level equalisation and level control. Quality monitoring. Signalling to the source location. Communication link between control room and different

studios.

 FACILITIES IN CONTROL ROOM

TRANSMITTER

TRANSMITTER SECTION

AMPLIFIERS MODULATORS ANTENNA

TRANSMITTER

AUDIO AMPLIFIER

POWER AMPLIFIER

PEAK CLIPPER

AMPLIFIERS

VALVE TYPE

SOLID STATE TYPE

MODULATORS

ANTENNA

MW ANTENNA

PHYSICAL REQUIREMENTS OF STUDIOS

WALLS

The walls of any recording as well as the control room is covered with the sound absorbing material wich may be of cleotex or perforated absorber.

The echos are produced when the sound is reflected back from any surface,but in case of absorber the sound is not reflected and hence the echos are cancelled.

AIRCONDITIONING

OBSERVATION WINDOW

WARNING LAMP

AUTOCLOSING DOOR

Other requirements

THANK YOU & HAVE A GOOD DAY

Navneet Dewangan Revendra Dewangan Sanchit Sharma Ravindra Singh Yadav Sumit Pradhan Brijesh Singh Thakur

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