Introduction to Block Diagram of a TV Receiver Antenna
Yagi antenna is employed for receiving television signals. It receives all the signals involving noise, and feed to TV receivers.
RF TUNERS
Rf tuners contains RF amplifiers, high pass filter, mixer local oscillator, and trap circuits. It picks the wanted channel (VHF or UHF) and converts it into constant I.F. IF Signal consists video IF. 3 signals (38.9MHz) land sound IF signal (33.4MHz).
COMMON IF AMPLIFIER
Common IF amplifier stage filters noise and amplifiers the two IF signa
VIDEO DETECTOR
Video detector filters the carrier signal and divides the composite video signal. Video amplifier it consist a device amplifier and an o/p amplifier. Video detector amplifies the composite video signal to a great extent to fed 80V (p-p) level to the cathode of the picture tube.
PICTURE TUBE
In picture tube, video signal is converted into electron beam first and after that line by line pictures using deflection stage.
AUTOMATIC GAIN CONTROL (AGC)
Automatic gain control (AGC) controls gain of RF and IF stages to deliver approximately constant signal gain to receiver, in spite of changes in the signal gain from TV station.
SYNCHRONIZING PULSE SEPARATOR
Synchronizing pulse separator divides the synchronizing pulses from the composite video signal
DIFFERENTIATOR
Differentiator divides horizontal synchronizing pulses from the synchronize pulses. Differentiator is a high pass filter circuit.
AUTOMATIC FREQUENCY CONTROL (AFC)
From LOT the Fly back pulses and horizontal synchronizing pulses are compared here to deliver the variation of the above as dc control voltage to horizontal oscillator. Therefore horizontal synchronize loss because of noise is eliminated.
HORIZONTAL OSCILLATOR
The aim of using this stage is to generate 15,265Hz horizontal frequency to allow horizontal scanning.
HORIZONTAL DRIVER AND OUTPUT AMPLIFIER
Horizontal frequency is amplified through these two amplifiers to a large extent and feed to horizontal deflection coils. These coils achieve electromagnetic and from the picture tube deflect the electrons beam into scanning lines. Pictures are regenerated through the scanning lines.
HORIZONTAL O/P TRANSFORMER
Additional High Tension voltage 18000 Volts AC is generated hers and is converted into de and then delivered to the final anode of the picture tube.
INTEGRATOR
Vertical type pulses are removed from Synchronizing pulses. For this it is planned as a low pass filters. These pulses are delivered to vertical oscillator to prevent vertical Synchronize lose.
VERTICAL OSCILLATOR
The aim of using this stage is to generate 50Hz vertical frequency to allow vertical scanning
VERTICAL DRIVES AND OUTPUT AMPLIFIERS
Vertical frequency is amplified and delivered to the vertical deflection coils. These coils achieve electromagnet and generate frames.
Latest technology based Electrical Engineering Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Block Diagram of a TV Receiver Antenna homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Block Diagram of a TV Receiver Antenna, project ideas and tutorials. We provide email based Block Diagram of a TV Receiver Antenna homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Block Diagram of a TV Receiver Antenna. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Electrical Engineering homework help and assignment help services. They use their experience, as they have solved thousands of the Electrical Engineering assignments, which may help you to solve your complex issues of Block Diagram of a TV Receiver Antenna. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
Struggle with Model Theory assignments? Best Model Theory Assignment Help tutors are here to provide A++ papers at feasible prices.
tutorsglobe.com characteristics of free energy assignment help-homework help by online gibbs free energy tutors
tutorsglobe.com super conductors assignment help-homework help by online solid state chemistry tutors
tutorsglobe.com leaf assignment help-homework help by online root-stem and leaf tutors
Structural organization and function of protozoans tutorial all along with the key concepts of Nutrition in Protozoan Animals, Locomotion in protozoa, Osmoregulation and Excretion, Mechanisms for Response, Reproduction and life cycles and Encystment
www.tutorsglobe.com offers Non Procedural Languages homework help, assignment help, case study, writing homework help, online tutoring assistance by computer science tutors.
www.tutorsglobe.com offers General Principles of Process Costing homework help, assignment help, case study, writing homework help, online tutoring assistance by accounting tutors.
Expansion of Gases tutorial all along with the key concepts of Kinetic Molecular Theory of Gas, Boyle's Law, Charles' Law, Cubic Expansivity of a Gas, Gay - Lussac's Law, Gas Law or Equation, Ideal Gas Equation, Intermolecular Energy and Forces
Avail top-rated Botany Assignment Help to get top-notch quality papers from PhD experts to secure A++ at affordable price range.
tutorsglobe.com binding energy of nucleus assignment help-homework help by online nuclear reaction tutors
www.tutorsglobe.com offers answering questions in elasticity of demand, assignment help, homework help and solutions of problem in elasticity of demand.
Biological Clocks tutorial all along with the key concepts of Types of Biological Clocks, Circadian Clocks, Overview of the Circadian Timing System, Criteria for Circadian Timing System, Circadian Rhythm Sleep Disorders, Kinds of Circadian Rhythm Sleep Disorders
in drawing this type of winding, the slots that are numbered from 1 to 12 and the long and short sides are alternatively drawn.
want top-rated criminology assignment help from bets experts to attain maximum grades? hire us right away!
Acquire Environmental Conservation and Restoration Assignment Help by top professionals at pocket friendly prices with 24/7 support
1959442
Questions Asked
3689
Tutors
1469574
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!