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Thursday 25 July 2013

news brain from http://repository.univpancasila.ac.id/index.php?option=com_docman&task=doc_details&gid=885&Itemid=9

Details for SISTEM PENGENDALIAN KUALITAS PENERIMAAN SINYAL TV BERBASIS MICROCONTROLLER AT89C51
PropertyValue
NameSISTEM PENGENDALIAN KUALITAS PENERIMAAN SINYAL TV BERBASIS MICROCONTROLLER AT89C51
Description
SISTEM PENGENDALIAN KUALITAS
PENERIMAAN SINYAL TV
BERBASIS MICROCONTROLLER AT89C51
AGUS PRAWIRO
4601210012
ABSTRACTION
This appliance is made and designed to enchance a system operation of quality acceptance of television signal automatically. At the moment, quality of acceptance of television signal manually very is giving difficulty at cunsumer, this because of existence of definition that happened at the time setting of antenna at plane of television. Situation of direction at television antenna in this time only happened at one way target, this result unfayourablely of acception of signal fequency accepted at our gogle-box.
Principle work at appliance operation of quality acceptance of signal automatically this that is, when we looking for signal frequency at gogle-box hence quality of signal output coming from video line of output will be accepted by Signal Detector where entering at pin 2. At the time of Signal Detector have accepted a composite signal which in from analogous signal, hence the composite signal is beforehand altered to become digital signal in Signal Detector. Output of Signal Detector released at pin 7 or ODD/EVEN. Output even which have in the from of digital signal. After getting digital signal then, this signal continued at Multivibrator which it’s function to arrest digital signal in certain a time gap to be Microcontroller can know obsolance or goodness of signal. If unfavourable or ugly accepted signal hence the Microcontroller will give comand to Motor of Control DC which it’s function to look for thought well of frequency direction and the antenna will turn around by itself to look for frequency direction of signal. The antenna will look for signal as according to got signal of video output of TV.