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Television

2,387 bytes added, 17:50, 28 April 2016
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USB
== Summary ==
Although most electronics are available with satisfactory performance in DC models, televisions (TV) are a different matter. Miniature TVs are available in DC but larger ones are all AC. There are many different technical specifications between TVs but the goal for you and your guests is simply the experience of picture quality or what is called presence.<ref>http://www.wilcoxlab.yorku.ca/PresencePapers/Lombardetal2000.pdf</ref>
In a small sailboat or cruiser you are likely to prefer a DC model designed for recreational vehicles. In a larger powered boat, with a goal of minimising AC consumption and inverter size, a 50-inch 720-pixel (720p) LED-LCD with a 9-foot (ft) viewing distance is probably optimum. Plasma delivers a better experience but is losing the market because LED-LCD is cheaper to manufacture and can deliver higher resolutions, with less energy consumption.
[http://www.displaymate.com/ Displaymate] has an excellent report discussing [http://www.displaymate.com/Display_Myths_Shattered.pdf how to evaluate TV displays].
== Television Types ==
<pre>LCD with CCF are no longer manufactured and are only available used.</pre>
 
=== Over the Air ===
Over the air (OTA) reception requires an antenna or satellite dish and a tuner in the TV or a separate component. A separate component will give the most flexibility. Historically for analogue broadcasts each country used one of three different broadcast standards: [https://en.wikipedia.org/wiki/NTSC NTSC] in North, Central and Andean South America; [https://en.wikipedia.org/wiki/SECAM SECAM] in France, the former USSR and Central West Africa; and [https://en.wikipedia.org/wiki/PAL PAL] in Europe and most of the rest of the world.
However, the world is adopting Digital television (DTV) and proliferating an even larger number of standards.<ref>https://en.wikipedia.org/wiki/Digital_television</ref> Most DTV OTA direct transmissions are low power and only useful at maximum distances of ~30 miles. The world is moving to streaming video via Internet and less and less by cable. Boats typically use [[MarineSatellite|marine satellite]] to subscribe to cable packages.
 
The DTV OTA standard in North America is [https://en.wikipedia.org/wiki/ATSC_standards ATSC].
== Picture Quality ==
Colour accuracy is an extremely complex subject, and impossible to gauge in a store. Absolute color and gray scale accuracy is necessary to display digital photos on your TV. Colour accuracy is intertwined with many other factors, including brightness and viewing angle. Overall, considering colour accuracy combined with viewing angle, plasma is much better.<ref>http://www.displaymate.com/LCD_Plasma_ShootOut.htm</ref>
 
== Connectors ==
 
TV connectors have evolved many types. For HDTV the main types are HDMI and USB. More is better. Older types that may be found are component video, S-video, RF or coaxial cable, and separate audio connectors.<ref>http://support.hp.com/us-en/document/c00396708</ref>
=== HDMI ===
 
A High-Definition Multimedia Interface (HDMI) connection is the go-to connector on a HDTV for high-definition digital video and audio signals. Maximum cable runs are 16 feet (5 meters).
 
HDMI is compatible with DVI video. You may need an HDMI-to-DVI adapter plug if your source device only has a DVI connector (but you must connect audio separately). HDMI supports High-bandwidth Digital Content Protection (HDCP).
 
=== USB ===
 
A universal serial bus ([https://en.wikipedia.org/wiki/USB USB]) connector standardizes the connection of keyboards, pointing devices, digital cameras, printers, portable media players, disk drives and network adapter) to personal computers and HDTV, both to communicate and to supply electric power.
 
An example use is to display digital photos on the TV, or to provide power to a streaming media device such as an [http://www.apple.com/tv/ Apple TV], [https://www.google.com/intl/en_ca/chromecast/ Google Chromecast] or [https://www.roku.com/ Roku] stick.
== Energy Consumption ==