- 60GHz Unlicensed Wireless
- 802.11x – 802.11b – 802.11g – 802.11n
- Applications – Industries
- AV Technology
- Broadcast Engineering
- Content Communications World – CCW NAB
- Conversion and Converters
- Convert 3G HD SDI to HDMI
- Dirac Pro
- Editorial Coverage
- Educational Guides
- Ensemble Designs
- Fiber Optic Medium
- Fiber Optic Transport
- Government and Military
- GSN – GOVERNMENT SECURITY NEWS
- Haute Spot
- Introduction to Fiber Optics
- Jim Jachetta
- Job Listings – Help Wanted
- Leadership – Management
- Market Research
- Military – Government
- MPEG-2 Basic Training
- MPEG-4 H.264
- NAB Show
- NHL – National Hockey League
- Optical Windows and Spectrum
- Partner Profile
- Press Release
- Professional AV – Pro AV
- Routing – Distribution
- Satnews Daily
- Snells Law
- Speaking Event
- Sports Video Group – SVG
- Storage – Archive
- Trade Shows
- TV Technology
- Types of Fiber-optic Material
- Users Guide to Fiber Optic Video Transmission
- Users Guides
- Video Compression
- Video Networking – Enterprise IPTV
- Video over Cellular
- Video Streaming – Webcasting
- Video Streaming – Webcasting
- VidOvation Video Report and Newsletter
- Windows Media
- Wireless Video
Tag Archives: fiber optic
From IPTV to locally using a wired network, the method your business uses to transmit video can have a significant impact on its results. From speed to cost and convenience, each video transmission channel has its own set of distinct advantages and disadvantages.
Your choice of technology is particularly important in a live video environment, where a good broadcast quality can make or break the event for viewers.
In this post, we’ll compare three ways your business can transmit live video and list specific advantages and disadvantages of each option.
If you’re considering different types of video transmitting technology for your business, or just want to gain an understanding of modern digital video, the information below should help you gain a deeper understanding of which video transmission option is right for you.
Video Over IP (IPTV)
In an IPTV broadcast, the video signal is transmitted from the source — most of the time, a video camera — to an IPTV encoder. The encoder converts the video into an encoded format that can be distributed online before transferring the live video feed to a server.
Viewers can tune in using their computer or smart device to watch the broadcast. They can also tune in using an IPTV decoder — known as a “set top box” — to decode the video into a format that’s compatible with their display.
The biggest advantage of IPTV is its scalability. Since the video content is transmitted over the Internet, it’s possible for tens of thousands of people (or hundred of thousands of people, for a major broadcast) to tune in using their own displays and mobile devices.
IPTV is also relatively inexpensive, making it great for small businesses that want to reach large audiences.
However, IPTV also has some downsides. Without a fast connection, latency can have a major effect on the quality of a broadcast for the viewer. It’s also important to have a powerful server if you plan on distributing your content to a large audience.
Wireless video technology let your business to transmit live or pre-recorded video via a wireless network. Instead of using cables to connect a camera to a video source, you can stream video wirelessly from a video camera and transmitter to a receiver.
Although wireless video is becoming popular at home, it’s far more valuable for businesses as a method of transmitting live event video.
During a keynote presentation, for example, your business can use wireless video technology to transmit a camera feed to a receiver, which then broadcasts the content over IPTV to viewers at home or outside the immediate area.
The biggest advantage of wireless video is its value for events. If you need to transmit a video signal to several different displays within the same area, wireless technology is a fantastic way to do it.
However, wireless video does have some limitations. One is range. Because wireless networks have a limited range, many wireless video transmitters can only broadcast to devices in a select area. The maximum range for devices varies from 2,000 feet to up to two miles.
Fiber Optic Video
Fiber optic video transmission involves transmitting video from a source to a receiver using fiber optic cables. A fiber optic video system can either transmit video directly from a camera, or from a separate video source that’s connected to the fiber optic transmitter.
One advantage of fiber optic video is that it prevents quality loss, which is a common problem in live video situations. Because of the capacity and speed of fiber optics, video quality is high and losses are minimal or nonexistent.
Another advantage of fiber optic video technology is the distance it can cover. Since fiber optics are so fast, it’s possible to transmit video over a long length of cable without any latency issues, making fiber optic video ideal for events that take place over large areas.
Learn more about video, audio and data communications systems
We specialize in helping businesses of all sizes use of video, audio and data communications equipment to meet targets and achieve objectives. From high quality equipment to customized solutions, we offer a range of products and services for companies and organizations.
Contact us now to speak to our experienced staff and learn more about the best live video and video transmission options for your business.
VidOvation is a Video Communications Company
Larry Jordan: Jim Jachetta is the Founder and President of VidOvation. For over 20 years, Jim’s been designing, integrating and delivering video, fiber optic and data communications systems and recently they’ve expanded into wireless video with some new technology being used by the NHL. Hello, Jim, welcome.
Jim Jachetta: Hi, thanks for having me. Pleasure to be here.
Larry Jordan: We are delighted to have you with us and let’s start with a really easy question. First, tell us about what VidOvation is.
Jim Jachetta: VidOvation is a video communications company. We manufacture solutions for wireless, solutions for fiber optic transmission, for webcasting, we make encoders to stream video over your corporate network or through the internet, but in a nutshell we help our clients move video from Point A to Point B and our tagline is ‘Moving video forward’, so we’re staying up to date with the latest technologies such as what we did for the National Hockey League, using 60 gigahertz transmission for uncompressed wireless video.
Larry Jordan: Let’s just take a second. We understand that you guys are in the business of moving video, but you’re one of the founders of the company. Why did you decide to start the company? What made that so intriguing to you?
Jim Jachetta: Well, I guess I have my dad to blame for that. My dad had an entrepreneurial spirit. My dad was an engineer at ABC, CBS and his longest and final stint was at NBC, so he worked at 30 Rock for about 12 years before starting a company called MultiDyne and, as kids, my brother and I, we always worked for our dad so junior high we helped stuff circuit boards and build a lot of his audio visual equipment, so it’s in our DNA and my dad was a great problem solver and my brother and I have inherited that work ethic of doing the never been done before and solving our clients’ problems or helping with their business workflow.
One of my favorite subjects is the transmission of video over fiber optic cable. I have had the pleasure of working on fiber optic implementations with Broadcasters to cover Presidential Elections and with Integrators on projects like the Las Vegas City Center.
Because of this passion, I am starting a multi-part series on the subject of Fiber Optic Video Transmission. My goal in writing this is to speak from my experience to make a topic that is scary to many, easy to understand and accessible so you can implement your own systems. I hope to do it in a humorous way relating my successes and challenges implementing many of these systems.
Anyone who knows me has also seen my passion for problem solving and doing the “impossible” and “never been done before”. I enjoy troubleshooting multi-million dollar fiber optic systems to discover a bad $20 patch cord or dirty fiber optic connector. The good news is that once a fiber optic system is up and running I know you will get many years of reliable operation.
In this series I will start with the basics and work my way up to the bleeding edge with 4K video fiber optic transmission. The series is perfect for the beginner and a good review for the expert. Clink these links to go to my first posts:
I’ve had a great time putting this series on Fiber Optic Video Transmission together for you and I hope you get great insight and some practical tips for your particular situation. From time to time I may also show you some interesting fiber optic products you can take a look at like these two below. If you have any questions about any of the content you can reply to this email or contact me at 949-777-5435 x 1001.
|FVT/FVR-5400-3G, VidOptic Series, 4 Channel 3G HDSDI Fiber Optic Transport Card with 4×4 Matrix for openGear||SilverBack 4K & HD SDI Fiber Optic Camera Back Camera Mount System|
Watch for my next installment in about 4 weeks. Please click to download additional white papers and presentations on wireless, webcasting, streaming and fiber optics. Thank you.
All the best,
President and CEO
Optical Windows and Spectrum
Wavelength remains a significant factor in fiber-optic developments. Figure 3 illustrates the wavelength “windows.” Table 1 shows the wavelength of each optical window and the typical application for multimode (MM) or single-mode (SM) operation.
The earliest fiber-optic systems were developed at an operating wavelength of about 850 nm. This wavelength corresponded to the so called “first window” in a silica-based optical fiber, as shown in Figure 3. This window refers to the wavelength region that will offer a low optical loss that sits between several large absorption peaks. The absorption peaks are caused primarily by moisture in the fiber and Rayleigh scat- tering, which is the scattering of light due to random variations in the index of refraction caused by irregu- larities in the structure of the glass.
The attraction to the 850 nm region came from its ability to use low-cost infrared LEDs and low-cost sili- con detectors. As technology progressed, the first win- dow lost its appeal due to its relatively high 3 dB/km losses. Most companies began to exploit the “second window” at 1310 nm with a lower attenuation of about 0.5 dB/km. In late 1977, Nippon Telegraph and Telephone developed the “third window” at 1550 nm. The third window offers an optical loss of about 0.2 dB/km.
The three optical windows—850 nm, 1310 nm, and 1550 nm—are used in many fiber-optic installations today. The visible wavelength near 660 nm is used in low-end, short-distance systems. Each wavelength has its advantages. Longer wavelengths offer higher performance, but always come with higher cost.
Table 2 provides the typical optic attenuation for each of the common wavelengths versus the fiber- optic cable diameter. A narrower core fiber has less optical attenuation.
The International Telecommunication Union (ITU), an international organization that promotes world- wide telecommunications standards, has specified six transmission bands for fiber-optic transmission. The first is the O band (“original band”), which is from 1260–1310 nm. The second band is the E band (“extended band”), which is 1360–1460 nm. The third band is the S band (“short band”), which is 1460–1530nm. The fourth band in the spectrum is the C band (“conventional band”), which is 1530–1565 nm. The fifth band is the L band (“longer band”), which is 1560–1625 nm. The sixth band is the U band (“ultra band”), which is 1625–1675 nm. There is a seventh band that has not been defined by the ITU that is in the 850 nm region. It is mostly used in private networks. The seventh band is widely used in high-speed computer networking, video distribution, and corporate applications.
Researchers have attempted to develop new fiber optics that could reduce costs or improve performance. Some alternative fiber materials have found specialized usage. Plastic fiber is ideal for short transmission distances that are ideal for home theater installations. Lower cost glass fiber reduces the need to develop longer distance plastic fiber and the higher cost of copper wire has expanded glass fiber-optic cable applications.