News Delivery in SD & HD

JVC Professional

APRIL 2007

NAB-2007

The ProHD Report

The NTSC Transmitter Chain vs. ATSC:

When we look at the direct over-the-air TV transmission from a TV station, we know that the analog NTSC transmission chain is the major limiting factor in the picture quality delivered to the home, all other quality factors of the (SD) viewing chain being of optimal (SD digital) quality.

	H Resolution	V Resolution

NTSC TX	331 TVL/PH	338 TVL/PH
ATSC TX of up-conv SD	535 TVL/PH	338 TVL/PH
ATSC TX of HD	873 TVL/PH	756 TVL/PH
Source: CBS Technology 1997

It is interesting to note that SD video of highest quality has the opportunity to be presented as a higher resolution image through the ATSC OTA (over-the-air) chain than the same video delivered through the NTSC OTA, whether SD or as up- converted HD ATSC encoded. Also, it is interesting to note that a high quality digital home (SD only) TV set has the opportunity to present the SD video at a higher resolution by using an ATSC set-top tuner box with the SD output than receiving the same SD signal over the NTSC OTA chain. A TV station must convert to a complete HD chain in order to be picture quality competitive in the future.

Home Audience Presentation vs. Audience Share:

The most important potential difference between SD and HD is the large screen viewing experience of the home audience, where the HD image offers up to 6x the resolution of SD, with little or no change in the viewing distance. There can be no doubt that the HDTV household will migrate to watch real HD programming when available, assuming acceptable content and talent. (Many years ago during the color TV transition, some people refused to watch B&W programs on their new color TV, desirable content or not!)

What about the home audience transition to HD? Consumer market research firms estimate that about 90% of the 110+ million TV households in the US will be HDTV households, or about 100 million, by end 2010. By end 2006, there were approx. 30 million HDTV households.

Remember the DTV sets sales statistics? CEA counted DTV sets, which included 480p capable TV sets, instead of just real HD sets. But now, nearly all purchases of DTV sets are real HDTVs, so no need to worry about the breakdown.

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NAB-2007 specifications

The JVC NAB-2007 is a notable entry in the world of professional broadcasting and production equipment, showcased by JVC at the National Association of Broadcasters (NAB) Show in 2007. This camcorder was designed to meet the demanding needs of videographers and broadcasters, emphasizing high-definition video quality and advanced technology.

One of the standout features of the JVC NAB-2007 is its ability to capture high-definition video in various formats. It supports both 720p and 1080i resolutions, allowing users to choose the format that best fits their production needs. This flexibility has made it a popular choice among filmmakers, event videographers, and news organizations looking for quality in their content creation.

The camcorder utilizes JVC’s advanced HD CMOS technology, which enhances image quality by providing better low-light performance and reducing noise. This is coupled with a powerful optical zoom lens that enables users to capture detailed shots from a distance, making it ideal for dynamic shoots where proximity to the subject may be limited.

Another key feature of the JVC NAB-2007 is its ergonomic design, which is crafted for ease of use during extended shooting sessions. The camera is lightweight yet robust, providing operators with comfort and stability. Additionally, the user interface is intuitive, allowing for quick adjustments to settings without disrupting the workflow.

Built-in stabilization features further enhance the usability of the JVC NAB-2007, ensuring that footage remains smooth even during handheld operation. This is particularly advantageous for documentary shoots or on-the-go filming where traditional stabilization rigs may be impractical.

Connectivity options are expansive on the JVC NAB-2007, including HDMI and component outputs, enabling seamless integration with various editing systems and broadcast environments. The camcorder also includes features for live broadcasting, making it versatile for both recorded and real-time production scenarios.

In summary, the JVC NAB-2007 encapsulates a blend of impressive features, cutting-edge technology, and user-centric design, making it a suitable choice for professionals in the broadcasting and film industries seeking reliable and high-quality performance in their equipment.