What is Din, 1 DIN, 2 DIN, and half DIN?What is LCD?What is PAL, NTSC and SECAM?

What is Din, 1 DIN, 2 DIN, and half DIN?

Din is the regular size of a aftermarket radio. Most kits are designed for DIN radio’s. Almost all radio’s made are DIN size. 1 DIN is the standard DIN specification. 2 DIN (or double DIN) refers to units that are twice as high as the standard DIN; half DIN is half high as 1 DIN.
DIN is a standard size for car audio head units,defined by the International standard ISO 7736 .It (or Deutsche Industrial Normale) is a series of uniformity standards developed in Germany, which apply to commonly manufactured item. It was adopted as an international standard in 1984, and commonly referred to as the „DIN car radio size“..
Head units generally come in either single DIN (1 DIN), which is 50 mm high; or double DIN (2 DIN), which is 100 mm high. When you are planning to buy a car DVD player,please check the player position height of your car carefully.  If 50mm, please choose 1 Din Car DVD Player / Monitor, and if 100mm, please choose 2 Din series.

What is LCD?

LCD stands for Liquid Crystal Display.

LCD technology has been around for a long time but it is now becoming very popular for flat-screen computer monitors and televisions. It can provide a much better, brighter image than the old CRT (Cathode Ray Tube) monitors and TVs.

Here is a very basic summary of how LCD works. (Maybe someone can expand on this.)

There is a set of two transparent panels with a liquid crystal solution between them. Light is shined from behind the panels. Each crystal either allows light to pass through or blocks the light. The configuration of the crystals forms the image.

What is PAL, NTSC and SECAM? How do I know which broadcasting/video format is workable in my country?

There are 3 main standards broadcasting/video format in use around the world: PAL, NTSC and SECAM. Each one is incompatible with the other. For example, a recording made in the France could not be played on an American VCR or DVD player.

If you or your clients view video tapes or DVD’s that are from outside of the United States, or send videos abroad, you must first convertthe tape or disc to or from the foreign television standard.

For more details, please find in here.

National Television System Committee Lines/Field
525/60 Horizontal Frequency
15.734 kHz Vertical Frequency
60 Hz Color Subcarrier Frequency
3.579545 MHz Video Bandwidth
4.2 MHz Sound Carrier
4.5 MHz P A L
Phase Alternating Line SYSTEM
PAL M Line/Field
525/60 Horizontal Freq.
15.625 kHz
15.625 kHz
15.750 kHz Vertical Freq.
50 Hz
50 Hz
60 Hz Color Sub Carrier
4.433618 MHz
3.582056 MHz
3.575611 MHz Video Bandwidth
5.0 MHz
4.2 MHz
4.2 MHz Sound Carrier
5.5 MHz
4.5 MHz
Sequential Couleur Avec Memoire
or Sequential Color with Memory SYSTEM
SECAM D,K,K1,L Line/Field
625/50 Horizontal Frequency
15.625 kHz
15.625 kHz Vertical Frequency
50 Hz
50 Hz Video Bandwidth
5.0 MHz
6.0 MHz Sound Carrier
5.5 MHz
6.5 MHz

Immobilienmakler Heidelberg

Makler Heidelberg

Source by joyceli

Grundig Music 60, empfangsstarkes Radio im modernen Design, white/silver

Grundig Music 60, empfangsstarkes Radio im modernen Design, white/silver

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Radiotyp: Persönlich, Tunertyp: Analog, Unterstützte Bänder: AM, FM. Treibereinheit: 9 cm. Kopfhörer-Konnektivität: 3.5 mm. Breite: 25 cm, Tiefe: 7 cm, Höhe: 14 cm. Kompatible Batteriegrößen: C, Batteriespannung: 1,5V

Tunertyp : Analog
Unterstützte Bänder : AM, FM
Radiotyp : Persönlich

Anzahl der eingebauten Lautsprecher : 1
Treibereinheit : 9 cm
Eingebaute Lautsprecher : Ja

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Durch die einfache Bedienung und ausgezeichnete Empfangsqualität ideal für zuhaus oder als Reisepocket zu verwenden
2 Wellenbereiche ermöglichen die Auswahl unzähliger Sender
Exzellenter Sound durch den eingebauten Qualitäts-Lautsprecher

Immobilienmakler Heidelberg

Makler Heidelberg

Broadcasting- History and Evolution

Technical definition of broadcasting would be the proper channeling and distribution of audio and video signals. These signals help in the transmission of various programs to different audience. Usually, these audiences is scattered into wide array of sets. They could be huge crowd in a public place or they could be certain sub-section of people in groups.

Broadcasting could find its roots attached to the radio transmissions and wireless telegraphy because even those were transmission of signals in different formats though. From the secret usage of radio and radio signals in the world wars to the present day podcasting, broadcasting has traveled a long way out. It started with Charles Herrold trying different varieties of call signals to regulate radio and then graduated towards the stage of U.S. government recognizing the need for the radio signal transmission and the operators required for the purpose.

From radio the transition took over to the television media sector. The source of revenue started inclining towards television. This change occurred in 1950’s in various parts of the world. Even though the radio programs were being broadcasted after the invention of television but by 1960s many of the radio networks stopped producing programs. Even in the television broadcasting, there was transition from the monotonous black and white to the coloured stages.

Talking about history, the noticeable one is of television. There were baseball games being aired on the television, which was in the 1930’s. During those days it was only radio broadcasting that was more widespread but with the advent of television, many of the radio broadcasting companies had to sell off. It started off with the regular programs, progressed towards the broadcasting of various games and more. Proper commercial broadcasting did not begin until late 1940’s in United States. Even the colour broadcasting was approved in early 1950’s. Colour broadcasting was originally German patent in 1904. It was not until 1954, the colour broadcasts were approved.

From the conventional radio programs and channels there was an evolution from the AM radio to the FM radio stations. They changed entire outlook of the radio broadcasting. With the advent of the FM radio, there started the decline of the AM radio because of the reasons like poor signal coverage in the AM radio, lower cost of FM receivers and very narrow AM radio bandwidth. These changes took place during 1970-90.

A new millennium arrives and with it comes the digital radio phenomenon and direct broadcasting by the satellites in USA. From digital radio comes the digital broadcasting across the world. Even the television these days is the broadcasted directly by the satellites.

Broadcasting has evolved from the government funded stage to the public and that is called public service broadcasting. Public service broadcasting is the most prevalent in the broadcasting industry. The television, radio and several such media outlets which receive funding from the public come under the public service broadcasting sector. Public service broadcasting has changed the complete outlook of broadcasting.

Changes in the broadcasting equipment and technology take place very rapidly and the growth has always been on a progressive curve. A lot has happened to the date and even lot is still to come in the broadcasting technology.

Immobilienmakler Heidelberg

Makler Heidelberg

Source by rajan mr

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