2.INTRODUCTION: THE BASICS

Digital Television (DTV)

Television broadcasting is changing. By February of 2009, traditional analog TV transmissions (the standard since TV’s inception) will cease to exist, in compliance with a federal mandate requiring all U.S. television stations to convert from analog to the new digital television (DTV) standards.

In contrast to the magnetic waves used for analog transmission (also known as NTSC, short for National Television Standards Committee), DTV transmits images and sound as data, using ones and zeroes, the same digital code computers use. As a result of this increased efficiency, DTV offers an array of benefits including dramatic improvements to picture and sound quality. In addition, DTV allows the same number of stations to broadcast using fewer channels, freeing parts of the broadcast spectrum for other uses, such as public safety and wireless services

NOTE: DTV should not be confused with digital cable or digital satellite systems. While these systems receive digital signals, the signals are converted to analog for display on channel 3 or 4 of an analog TV.

High Definition Television (HDTV)

The most common DTV formats are Standard Definition Television (SDTV) and High Definition Television (HDTV). Of the two, HDTV delivers digital broadcasting’s highest resolution and picture quality. HDTV also uses a “widescreen format,” which refers to the aspect ratio (screen width vs. height) of the image. To put this in perspective, analog television uses a 4 x 3 aspect ratio; HDTV’s aspect ratio is 16 x 9, creating a more cinematic-like viewing experience. Plus HDTV increases the number of horizontal scan lines on the screen, enabling it to render greater picture detail. And, while HDTV uses approximately the same bandwidth, it transmits approximately six times more information, further enhancing video and audio clarity.

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Westinghouse VK-42F240S manual Introduction the Basics, Digital Television DTV, High Definition Television Hdtv
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VK-42F240S specifications

The Westinghouse VK-42F240S is a versatile and efficient electric water heater, designed to provide reliable hot water while optimizing energy consumption. This model is particularly suitable for residential and commercial applications, combining advanced technology with user-friendly features to meet a variety of hot water needs.

One of the standout characteristics of the VK-42F240S is its 42-gallon tank capacity. This ample storage allows for a steady supply of hot water, making it ideal for households with multiple bathrooms or heavy hot water usage. The unit is designed with durability in mind, featuring high-quality materials that ensure longevity and resistance to corrosion.

The VK-42F240S employs a sophisticated heating technology, utilizing dual heating elements that efficiently heat water. These elements are designed to provide quick recovery rates, meaning that even during peak usage times, users can rely on a consistent supply of hot water. This is particularly beneficial for busy households where demand may fluctuate throughout the day.

Another significant feature of the VK-42F240S is its energy efficiency. This model is equipped with an ENERGY STAR rating, indicating that it meets stringent guidelines for energy consumption. By utilizing advanced insulation technology, such as foam insulation around the tank, the unit minimizes heat loss, thereby reducing energy costs and contributing to a more sustainable environment.

The VK-42F240S also comes with user-friendly controls that allow for easy temperature adjustments. This lets homeowners tailor the water temperature to their preferences, enhancing comfort while ensuring safety. The model includes built-in safety features, such as a temperature and pressure relief valve, which helps prevent overheating and ensures safe operation.

In terms of installation, the VK-42F240S is designed for ease of use. Its compact design allows for flexible placement, whether in a utility room, basement, or garage. The connections for water and electricity are straightforward, making the installation process more accessible for professionals and DIY enthusiasts alike.

Overall, the Westinghouse VK-42F240S electric water heater stands out for its combination of capacity, efficiency, and user-friendly design. Whether for a busy family or a small business, this model offers reliable performance to meet diverse hot water needs.
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