Television is an electronic device used to receive moving images and sound over long distances using visuals or viewing. This tool is a media development from radio which can only hear the sound or the source of the sound.
This tool can describe the state of a place in accordance with the image, shape, color and sound. For LCD televisions, there are special LCD TV antennas for perfect reception.
History of Television Invention Television
is a device that uses electromagnetic waves with the discovery that light affects the electrical resistance of selenium. After that he realized that light can be changed into electric current by using a selenium photocell (selenium photocell).
After it was known about the conversion of light to produce an electric current, the discovery of a student named Paul Nipkow came from Berlin. He is the inventor of television which began with the invention of a small rotating metal disk with holes in it.
The discovery of the disc was then developed by John Logie Baird and Charles Francis Jenkins by creating a system of image capture, transmission and reception. However, in 1923 Vladimir Kozma Zworykin had become the inventor of the world's first tube television.
The tube television was then added with a tube camera, after criticism from the public. The price of this mechanical television is very cheap and durable, that's why many people don't want to move or buy an electronic television.
For this reason, Vladimir Kosmo Zworykin and Philo T. Farnsworth made electronic television at an affordable price. However, in 1935 television was able to broadcast using an electronic system. Even though it uses an electronic system, the format still uses black and white.
Television in the Past
At that time television was the most expensive and luxurious item in areas such as Indonesia. Television for Indonesian citizens has become a very luxurious item, because out of a hundred families, only one person owns it.
They watch television together in the place of the person who owns the television on certain days. Because if they watch television every day they feel ashamed of the owner.
At that time electricity was one of the most awaited tools and a luxury item. Not all houses have electricity, but they use cempluk which are placed on the table. The light source at night only uses a cempluk made from an oil stove wick and an old glass bottle.
Each house only has two cempluk, in the living room for study and bedroom. If they want to leave the house, they only use torches made of young bamboo with cloth and kerosene.
Although electricity and electronic television are still not widely owned. They remain happy and enjoy the entertainment broadcast on television and are waiting for the next story. The stories made by the director still show Indonesian culture and do not violate the principles and norms.
In addition to stories that can entertain the audience, broadcasts about the news are also eagerly awaited. Because they can see the conditions or circumstances at the scene by listening to the delivery of news.
Even though the radio already exists, it has become a common item owned by people in the village. Radio appeared before the invention of television, therefore radio became a common item after the invention of television.
In the past, radio still often broadcast wayang stories with several plays and ludruk from Java. The two games between wayang and ludruk are the most awaited events or entertainment. The audience is willing to travel far from home by bringing their family to watch together.
In the past, electronic television was only sold in England, the United States and Russia in 1928 – 1934. And electronic television has produced about 19,000 units. With distribution in several countries such as Germany which sold about 1,600 units, and in America it sold 8,000 units.
However, the board stopped production in 1942 due to World War 2. However, after World War 2 in 1945, the number of television owners in the United States and Britain increased every year. The increase in the number of television owners was triggered by the existence of permits to produce televisions.
Television Antenna
The antenna used in ancient television is still attached to the television. The antenna must be held or supported by an object, but if it is supported it will quickly lose its signal. The television, which still uses an antenna attached to it, does not yet have a remote control like it does today.
If they want to change the channel or adjust the sound they must use the dials on the right and left. The loop functions to change the broadcast channel or channel, adjust lighting, sound and contrast. There is no way to set the color because there are no other colors besides black and white.
Television using an LCD screen was first introduced by George Heilmeier through an institution called RCA. This is where television antennas for LCD televisions began to be known and have various types of television, namely:
1. Analog television is a type of television that encodes image information by varying the voltage or frequency of the signal. And the entire system before digital television can be incorporated into analog television.
2. Digital television is a type of television that uses digital modulation and compression systems that function as the distribution of video, audio and data signals for television sets.
3. Satellite television is television that transmits in a manner similar to satellite communication, and can be likened to cable television and local television. Cable television is television that uses a television broadcasting system via radio frequency with optical fiber and not through the air as when using an antenna, but can use a cable plane.
In this era that has developed the field of electronic technology, many objects are created for means of information, communication and much more. And these tools can quickly captivate the hearts of those who see them. Television, for example, everyone must have seen television programs except for people who live in areas that have not been reached by electronic technology.
Anyone who has seen television shows or uses electronic devices will forget what to do. That is one of the negative impacts caused by the development of television. And others also exist, which can damage the morals of the nation's children and eliminate the nation's culture.
Because today's television shows are much different from the past, nowadays they are more inclined to western culture. Despite globalization, we must maintain the culture of this nation.
Thus the article about the intricacies of antennas for LCD TVs, may be useful.