Coax Wired | JVC NAB-2007 guide

JVC Professional

APRIL 2007

NAB-2007

The ProHD Report

Can you use your existing ENG analog microwave? If your existing ENG Van microwave transmitter is of the analog FM modulated kind, you may be able to use it for HD ENG by adding a digital-to-analog transcoder unit with ASI input and baseband output to existing ENG analog transmitter. Nucomm offers the “Analog Coder System” consisting of a modulator for the ENG Van and a demodulator for the fixed station or studio. The Analog Coder uses 8VSB modulation and is capable of up to 25Mbps in a 12MHz channel, sufficient for the ProHD 20Mbps TS. However, under the BAS Relocation program, the existing ENG analog microwave is replaced with a new digital microwave at no cost to the TV station, except for optional HD capabilities.

The built-in HD Super Encoder performs comparable to a stand-alone broadcast quality HD MPEG-2 encoder costing upwards of $30,000, yet the complete ProHD camcorder (GY-HD250U) carries a US list price of just $9,995 (without lens). This testifies to JVC’s broad experience in video CODEC design. Just look at the 1U rack mountable HD MPEG-2 broadcast quality encoder DM-JV600U – US list $29,999.

How do you get the 20Mbps TS from the ProHD camcorder to the ENG Van?

JVC GY-HD250U

COAX

WIRED

ASI Output

IEEE-1394

(MPEG-2 TS 20Mbps)

1394-to-ASI Bridge

Miranda ASI-Bridge CAM

Microwave TX

& Modulator

ASI Input

Fig. 6. You just saved $30,000 (typical HD encoder cost for the ENG Van) by using the built-in HD Super Encoder in the ProHD camcorder. Your newer digital-ready microwave transmitters in your ENG Vans may already provide the ASI input, and may be capable of relaying 20Mbps real-time back to the TV station master control. Easy microwave!

The 1394-to-ASI Bridge unit mounts on the camcorder and accepts 1394 connectivity from the camcorder, converting the 20Mbps MPEG-2 TS to ASI formatted output, easily transported by coaxial cable for hundreds of feet to the ENG Van, where the ASI signal is supplied to the ASI input of your microwave modulator/transmitter. No need for a separate $30,000 broadcast quality HD encoder.

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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.