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.
Antigen tutorial all along with the key concepts of Origin of Antigens, Exogenous antigens, Endogenous antigens, Autoantigens, Tumour antigens, Affinity and Avidity, Specificity and Cross Reactivity, Factors affecting antigen-antibody
Introduction to Lower Plants tutorial all along with the key concepts of Introduction to Bryophytes, Pterifophytes, Pteropyta, Features of ferns and Life cycle of fern
Hire the best tutors of Britain 1688 revolution Assignment Help service and get assured top-notch grades at reasonable rates.
Would like to be a topper? Get top-class Financial Accounting Assignment Help service from qualified experts and score top grades.
tutorsglobe.com digestion of nucleic acids assignment help-homework help by online digestion tutors
tutorsglobe.com monohybrid cross assignment help-homework help by online crossing techniques tutors
Electro-Magnetic Methods tutorial all along with the key concepts of Two-coil CW Systems, Slingram, Response functions, Slingram practicalities, Effects of coil separation, Surveys on slopes, Applying corrections, Ground conductivity measurement, Fixed-source methods
Empirical Formula of an Oxide tutorial all along with the key concepts of theory of chemical formula, Determination of the empirical formula, Concept of the experiment-empirical formula, Procedure-empirical formula of an oxide
tutorsglobe.com inborn errors of metabolism assignment help-homework help by online biochemistry tutors
Inadequacies of Classical Mechanics tutorial all along with the key concepts of Blackbody radiation, Photoelectric effect, Compton Effect, Bohr's Theory of Hydrogen Atom, Wave-particle duality, Heisenberg's Uncertainty Principle
Pharmaceuticals tutorial all along with the key concepts of Antibiotics, Production of Penicillin, Production of Acetylsalicylic acid or aspirin and Production of Tetracycline
We offer the most sought-after Topology Assignment Help at most apt prices with 24x7 support of PhD experts to secure A++.
Mass Analyzers used in Mass Spectrometry tutorial all along with the key concepts of Sample Introduction, Methods of Sample Ionization, Electron Impact Ionization, Chemical Ionization, Fast Atom Bombardment, Electrospray Ionization, Desorption Techniques, Detection-Recording of Sample Ions
www.tutorsglobe.com offers Overhead Variances homework help, assignment help, case study, writing homework help, online tutoring assistance by accounting tutors.
introduction to physical chemistry tutorial all along with the key concepts of where is physical chemistry used, industries where physical chemistry is used, what is the importance of chemistry in everyday life
1952078
Questions Asked
3689
Tutors
1473006
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!