Krati doordarshan ppt

India’s largest public broadcaster.

Launched by Gov. of India on 15sept 1959.

Channels-37+4 Allied channels.

ASPECT RATIO

SCANNING

FLICKER.

INTERLACED SCANNING

RESOLUTION

ACTION AREA:-•STAGE LIGHTENING

•SEVERAL VIDEO MONITORS

•TV CREW

PRODUCTION CONTROL ROOM:-

•VISION MIXER

•DIGITAL VIDEO EFFECTS

•TECHNICAL DIRECTOR’S STATION

CONTROL APPARATUS ROOM:-

OBJECTIVES:-

a) Reverberation time

b) Attenuation of noises

DESIGN CRITERIA

ACOUSTIC TREATMENTS:-

a) Flooring

b) False Ceiling

c) Wall Treatment

GEOSTATIONARY SATELLITES:- Used in communication field.

ARCHITECTURE:- a) BUS b)COMMUNICATION PAYLOAD • Single beam

• Hemisphere beam

• Global beam

RECEIVING SECTION

TRANSMITTING SECTION

AUDIO-VIDEO SWITCHER:- Separates audio video signal

DRIVER UNIT:- Signal power is made compatible to power amplifier

POWER AMPLIFIER UNIT:- Amplifies the signal

PRESENTED BY :- KRATI MITTAL E.C.E(4th YR.)