The Difference between EDTV and HDTV
Confused by EDTV vs HDTV? We don't blame you. The number of acronyms floating about with regard to digital TV is frightening. What's even more worrying is that very often they are used by people who have little or no knowledge about what they mean. If the person selling you doesn't know the difference between EDTV vs HDTV, how are customers supposed to decide which TV or projector to go for?In our guide below, we've tried to distill the technical info into as few words as possible and make it as straightforward to understand as we can.To properly explain EDTV vs HDTV, we need to step back a bit. Traditional TV has 525 lines of video which are interlaced.
Interlacing just means that every frame of video is split into two fields and each field is shown alternately. Although there are 525 lines in the signal, only 480 lines contain video, so it is sometimes referred to as 480i (480 lines interlaced). This is known as Standard Definition TV, or SDTV. While this has worked well enough for fifty years, as TV sets have got bigger and projectors more popular, the quality deficiencies have become increasingly apparent.The ultimate answer to improving the quality of the image displayed on your TV is HDTV, however, as a step on the road to HDTV, the industry came up with Enhanced Definition TV, or EDTV. This system contains the same 480 lines as SDTV, but they are progressive scan.
Hence EDTV is also known as 480p. Progressive scanning just means that instead of splitting the signal into two fields and showing half the lines at a time, all 480 lines of video are shown at once. This results in a noticeable improvement in the quality of video.The bad news in relation to EDTV vs HDTV is that you need a completely new TV or projector to display both EDTV and HDTV. Most DVD players on the market today are progressive scan, meaning they output EDTV signals, however, in order to view the progressive scan picture in all its glory, you need a TV or projector capable of displaying it and that, unfortunately, means getting a new TV.In terms of content, there is very limited TV content available in HDTV format, and there is still wrangling about the standard for HD DVDs. However, every DVD disc on the market can be displayed in EDTV right now.Bottom line? Pretty much every HDTV projector or TV on the market today will display EDTV as well.
So while there may not seem like a great deal of point in getting a new display for the limited HDTV content that is available today, it is worth it to watch your DVD collection in EDTV, the difference between SDTV and EDTV really is that big..
Kenny Hemphill is the editor and publisher of The HDTV TunerHDTV Antennas
HDTV televisions need special antennas to be able to catch the frequency. These televisions cannot receive the transmission from normal antennas used by any other brand of color television. Selecting the right HDTV antenna system is critical, and one should make use of a highly directional antenna designed for "Fringe Area" reception.? One objective that should be kept in mind while installing the antenna is that it should accept signals directly from the transmitting tower.
Some of the other considerations that one should keep in mind before buying the antenna is that one should check with the local homeowner's association, seeking permission to put up an antenna on the roof or any other exterior location.
One would also need to determine whether local channels are VHF, UHF, or both.
This would determine the type of antenna to buy.
The owner would also need to determine whether there is a clear line of sight to the station antenna.
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The Difference between EDTV and HDTV
Confused by EDTV vs HDTV? We don't blame you. The number of acronyms floating about with regard to digital TV is frightening. What's even more worrying is that very often they are used by people who have little or no knowledge about what they mean. If the person selling you doesn't know the difference between EDTV vs HDTV, how are customers supposed to decide which TV or projector to go for?In our guide below, we've tried to distill the technical info into as few words as possible and make it as straightforward to understand as we can.To properly explain EDTV vs HDTV, we need to step back a bit. Traditional TV has 525 lines of video which are interlaced.
Interlacing just means that every frame of video is split into two fields and each field is shown alternately. Although there are 525 lines in the signal, only 480 lines contain video, so it is sometimes referred to as 480i (480 lines interlaced). This is known as Standard...
The Difference between EDTV and HDTV
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Factual Employment Screening ? Part One
We have all heard in recent years that the need for a substantive policy of conducting pre-and post-employment background checks exists in more than just defense contractor and fiduciary-based enterprises. Today, with the overwhelming preponderance of employer liability litigation, and with negligent hiring being the focal point of round-table discussions of some of the plaintiff's firms, the need for thorough background checks has been substantiated. This is a common sense perspective, not only...
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The Skinny on RFID
RFID is the abbreviation for Radio Frequency Identification. RFID is a method used to store and retrieve data using RFID transponders or tags. RFID tags have antennas that allow them to accept and respond to queries from the RFID transceiver. There are passive and active RFID tags. The difference between the two is that passive tags do not need an internal power source, but active tags do.
RFID technology is already used in many technologies today. The future of RFID technology seems limitless...
The Skinny on RFID
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Breast Feeding ABC's
There is more information available on breast feeding than ever before with plenty of breast feeding clothes to choose from, breast feeding problem that occur, benefit breast feeding, breast feeding in public and nursing bras it can for new nursing mothers be a bit overwhelming. Of course to start nursing mothers will want to have a few pieces of breast feeding clothes and than in time she can add to her collection dependent on both her needs and lifestyle.
Breast Feeding Problems
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