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MULTIDYNE DEBUTS POWERFUL, HIGH-DENSITY LIGHTCUBE AT NAB 2010

April 6th, 2010

MultiDyne - LiGHTCuBE

New Solution Offers Up to 80 HD Signals and Option for a Signal Generator and HD Monitors

LAS VEGAS, APRIL 6, 2010MultiDyne, a premier provider of fiber optic-based video and audio transport and routing solutions for broadcast and pro A/V applications, will unveil its brand new LiGHTCuBE fiber optic field transport system at this year’s NAB (Booth C7637). In addition, MultiDyne will also introduce the option for an HD or composite signal generator as well as HD monitors on the LiGHTCuBE, giving broadcasters unprecedented ability to test and monitor signals in the field.

Capable of housing any product in the MultiDyne product line, the LiGHTCuBE represents the company’s most customizable, rugged and high-density solution to date. Designed for the fiber optic field transport of composite, HD video, PL, IFB, audio and more, the LiGHTCuBE can be configured for as many as 80 HD-SDI, SDI or composite video paths, with 225 AES or analog audio channels. The LiGHTCuBE is also compatible with DVI, RGB and HDMI and is AC and fully battery powered.

In addition, the new test and monitor features make the LiGHTCuBE especially effective for in-the-field signal monitoring. With an HD monitor and signal generator on either end of the product, users can test the circuit even if the camera has not arrived. Further, the HD test signal generator option also allows users to send the test pattern down the line, or to send the signal from the studio end directly to the LiGHTCuBE. This function allows users to monitor the camera output and the signals arriving at the shoot, and can be added to any solution in MultiDyne’s LiGHTBoX product line.

“With our new LiGHTCuBE, the options for the end-user are virtually limitless,” says Frank Jachetta, senior vice president of sales and operations for MultiDyne. “Not only does the LiGHTCuBE hold more HD, analog video and audio signals than any other solution in our product line, it is also extremely customizable, even by the end-user. Our new test and monitor features provide even more value. Customers who were creating their own makeshift flyaway case to house many video signals will finally have access to a smaller, cost-effective and extremely high-quality solution for all their fiber optic transport needs.”

A major benefit also lies in the LiGHTCuBE’s size. Though this solution is heavy on HD and audio signals, the LiGHTCuBEv is a compact and extremely portable 14-inch cube design, making it small enough for sports and ENG, an announce booth setting, as well as any field application where signal density is a must. Additional carry handles allow users to “grab-and-go” for remote or on-location broadcasts. A weather resistant cover is also available.

The LiGHTCuBE is exceptionally versatile and can be used in a number of different broadcast and pro A/V situations. It is ideal for applications including large-scale outdoor arena sporting events where a user requires a rugged, highly weather-proof solution for handling massive amounts of HD signals. The LiGHTCuBE is also a perfect fit for users transporting high-density audio; for example, in a live symphony or orchestra broadcast setting with over 60 microphones, the LiGHTCuBE can manage audio bottlenecks, transporting signals seamlessly to an OB van or studio.

The LiGHTCuBE can be linked using tactical or conventional fiber to any MultiDyne solution, including the DVM-2500, HD-1500, HD-3000, HDMI-ONE, DVI-6000 as well as many non-MultiDyne products. In addition, the LiGHTCuBE offers users intercom, PL, IFB and belt pack support.  For more information on the LiGHTCuBE and its optional test and monitor features, please visit the MultiDyne website at: http://www.multidyne.com/productdetail.cfm?ProductID=247.

About MultiDyne:

For more than 30 years, MultiDyne has been a leading provider of innovative and outstanding video and fiber optic-based transport and routing systems for the broadcast, cable, satellite, production, digital cinema, pro A/V, corporate, retail, surveillance, teleconferencing, judicial arraignment, transportation, government, military, and healthcare markets. MultiDyne’s fiber optic transport and routing systems for video, SDI, 3G HD, DVB/ASI, VGA, DVI, HDMI, audio, AES, Ethernet, data, CATV, as well as the company’s other broadcast accessories are used worldwide by such industry leaders as ABC, CBS, NBC, CNN, RAI, BBC and the Department of Transportation. MultiDyne provides a seven-year warranty on its core product line. For more information, call MultiDyne at 1-877-MULTIDYNE or 1-516-671-7278, visit the company’s Web site at www.multidyne.com, or send an e-mail to sales@multidyne.com.

Fiber Optic Transport Systems for Broadcast Television, Multiple signals, New Products, News, Size, Uncategorized, Weight , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

MULTIDYNE’S FRANK JACHETTA STEPS INTO ROLE OF MANAGING DIRECTOR; COMPANY WELCOMES INDUSTRY VETERAN FRED SCOTT AS VP OF SALES & BUSINESS DEVELOPMENT

April 6th, 2010

LAS VEGAS, APRIL 5, 2010MultiDyne Video & Fiber Optic Systems, a premier provider of fiber optic-based video and audio transport and routing solutions for broadcast and pro A/V applications, today announces that Frank Jachetta will be taking on the role of managing director. In line with the company’s continued growth and industry momentum, MultiDyne has also enhanced its sales force with a new addition and a promotion. Fred Scott, a 20-year industry veteran, will join the company as vice president of sales and business development, while Matt Watkins, inside sales manager, has been promoted to sales and system design manager.

Previously serving as senior vice president of sales and operations, Frank will now oversee all facets of MultiDyne’s business as managing director. With the relocation of Jim Jachetta, the company’s former senior vice president of engineering and product development, to pursue other interests in Orange County, CA, Frank will now step into a larger role managing the company’s day-to-day operations. In his new position, Frank will provide strategic oversight of both the sales and engineering teams, continuing the company’s tradition of innovation and unparalleled customer service for the fiber optics and routing solutions market.

“On behalf of our entire company, we want to thank Jim for all of his contributions during his tenure at MultiDyne,” says Frank Jachetta. “We wish him luck in all of his endeavors. Moving forward, we are excited to welcome Fred Scott to the company. Our number one commitment has always been our customers, and we are thrilled to leverage the strengths both Fred and Matt bring to the table in order to better serve our customer base and augment the tremendous growth we’re experiencing.”

As vice president of sales and business development, Scott will be responsible for driving the expansion of MultiDyne’s business, overseeing and coordinating all of the company’s sales activities worldwide. With previous positions at several of the industry’s biggest fiber companies, including Communications Specialties Inc. and GE Industrial Systems (formerly Fiber Options), Scott brings a deep understanding of the fast-evolving industry to his new position. With a wealth of experience developing OEM agreements, training sales staff and negotiating major sales with national and international brands, Scott will work closely with current and potential customers to find the best solution for their fiber-optic video and audio transport and routing needs.

Previously serving as inside sales manager for MultiDyne, Watkins will further enhance the company’s growing sales team in his new position as sales and system design manager. In this expanded role, Watkins will represent MultiDyne at the company’s tradeshows nationwide, interfacing directly with clients to provide excellent customer service and support.

MultiDyne’s sales team will be serving customers at NAB 2010 – stop by to meet the entire team and preview the company’s innovative new products for 2010 at Booth C7637.

About MultiDyne:

For more than 30 years, MultiDyne has been a leading provider of innovative and outstanding video and fiber optic-based transport and routing systems for the broadcast, cable, satellite, production, digital cinema, pro A/V, corporate, retail, surveillance, teleconferencing, judicial arraignment, transportation, government, military, and healthcare markets. MultiDyne’s fiber optic transport and routing systems for video, SDI, 3G HD, DVB/ASI, VGA, DVI, HDMI, audio, AES, Ethernet, data, CATV, as well as the company’s other broadcast accessories are used worldwide by such industry leaders as ABC, CBS, NBC, CNN, RAI, BBC and the Department of Transportation. MultiDyne provides a seven-year warranty on its core product line. For more information, call MultiDyne at 1-877-MULTIDYNE or 1-516-671-7278, visit the company’s Web site at www.multidyne.com, or send an e-mail to sales@multidyne.com.

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UK’s One Box Television is Right on Target with MultiDyne’s SilverBULLET

December 18th, 2009

multidyne-silverbulletLOCUST VALLEY, NY/LONDON, DECEMBER 18, 2009 – MultiDyne Video & Fiber Optic Systems, a premier provider of fiber optic-based video and audio transport and routing solutions for broadcast and pro A/V applications, is loading up UK’s One Box Television with its  SilverBULLET Mini 3G HD/SDI fiber optic link. One Box Television, an innovative UK multi camera gallery facilities rental company, purchased the extremely lightweight, tiny transmitter and receiver modules through MultiDyne’s exclusive distributor in the UK, Bright Space Technologies.

With recent rentals to premier broadcast networks including the BBC, West End Productions and large corporations like Sony, One Box Television was looking to upgrade its equipment to further incorporate the most sophisticated HD solutions on the market into its custom-made, “One Box” broadcast rental system. As the system is used for remote productions, One Box Television selected the SilverBULLET 3G fiber optic links for their ability to transport 3G signals over long distances on a single mode of fiber, their ease of portability and their extremely compact size.

“By combining the SilverBULLET modules with our other technology, the on-camera boxes now allow full vision control of HD cameras over 100 metres, as well as feeding time code, talkback and reverse vision,” says Richard Stevenson, founder of One Box Television. “The product revolutionizes the stability of our pictures, and has allowed much longer cable runs than were previously available to us over coax cable.”

Designed for quick and easy installation, the SilverBULLET supports transmission across SMPTE 424M 2.97 Gbps, SMPTE 292M 1.485 Gbps and SMPTE 259M 270 Mbps standards regardless of format. The transmitter modules also include equalization for long lengths of coaxial cable, further easing the installation process as users can incorporate the SilverBULLET at any point in the HD/SDI chain. With error free pathological pattern operation, low system jitter and embedded audio support, the SilverBULLET provides a typical link distance of up to 30 km (18.6 miles).

“The SilverBULLET is an ideal addition to London’s One Box Television’s existing custom rental package,” says Frank Jachetta, senior vice president of sales and operations for MultiDyne. “We’re pleased that companies from around the world look to Bright Space Technologies and MultiDyne to provide state-of-the-art equipment for their system upgrades, and as rental companies look for new ways to stay ahead of their competitors in 2010, they can rely on our full product line to provide the most cost-effective, reliable and long-lasting products on the market.”

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HD World – Route and Send Your Video Farther with Light Solutions from MultiDyne

October 16th, 2009
 

MultiDyne Video & Fiber Systems, a leading provider of video and fiber optic based transport and routing systems, will be introducing a number of groundbreaking new products at this year’s HD World (Booth 942), the fall’s premier conference and exhibition for media and communications technology, held from October 14 – 15 at the Jacob K. Javits Convention Center, NYC.
Now, here’s a preview of what’s new, including: new openGear solutions, new accessories for the SilverBULLET, new features for the DVI-6000 and EOS-4000, HDMI-ONE DVI/HDMI Fiber Link with HDCP, HD-3500 3G Video with Audio and Data, COMMS-2000 two to four Wire Intercom Bridge, and

Route and Send Your Video Farther…
                           …with Light Solutions from MultiDyne
 

 

 
Best Regards,

The MultiDyne Team

Matt Watkins, Inside Sales Manager
mattw@multidyne.com

Frank Jachetta, SVP of Sales
frankj@multidyne.com

Jim Jachetta, SVP of Engineering
jimj@multidyne.com

MultiDyne® Video & Fiber Optic Systems
Toll Free US:   1-888-332-6779
International: +1-516-299-8293

  

 

  

MultiDyne, LiGHTBoX and the MultiDyne logo are registered trademarks of Multidyne Electronics Inc.   

 

 

 

 

Another big announcement: MultiDyne has introduced Significant Pricing Reductions across our entire HD-SDI fiber optic product line specifically the HD-1500 1.5G Multirate HD-SDI Fiber Link; SilverBULLET mini 3G Multirate HD-SDI Fiber Link with Power Supply and Pelican style case and the HD-3100

3G Multirate HD-SDI Fiber Link.  This is the result of negotiating better pricing across the board with all of our vendors and suppliers.
Fiber-Comms Intercom Fiber Link. Please stop by Booth 942 to see the rest. See you at the show!

 


 

DVI-6000 DVI, VGA & Component, Single & Dual Link Transport 

 

NEW Features

With the MultiDyne DVI-6000 fiber optic transport link, easily connect your video walls and control rooms with remote video processing equipment, while maintaining the highest video quality.  The DVI-6000 transports DVI-I, RBG-HV and DVI-D signals up to WQXGA 2560 x 1600 over a single fiber and 3G SMPTE infrastructure.

Click here for more information on the DVI-6000

 

 


 

HD-4400 4 Ch. 3G HD-SDI Fiber Optic Transport with 4×4 Matrix for openGear
Plus Other Surprise Additions to the openGear Family

This high density, multirate, 3G HD–SDI SMPTE fiber optic transport system with a 4×4 matrix on both the transmitter and receiver is one of the first products MultiDyne has designed as part of our participation in the openGear terminal equipment platform group.  We also have several exciting announcements to share!  Stop by Booth 942 for the latest details.

Click here for more information on openGear

 

 


 
Electro-Optical Matrix Routing Switcher for Transparent, Point to Multi-point Switching NEW Features

The EOS-4000 Electro-Optical Matrix Routing Switcher is a versatile, multi-purpose, non-blocking, transparent solution that provides high-speed routing of any format of digital fiber optic signals. The EOS-4000 series is capable of switching digital signals up to 10 Gbps. Matrix sizes are scalable starting at 16 x 16 up to 288 x 288.  Now available with 3G SMPTE Reclocking IO Blades.
 

 

Click here for more info on Fiber Optic Routing Switchers


 

HD-3500 HD-SDI, Audio and Data Fiber Link
NEW Features

The HD-3500 fiber optic transceiver supports a multirate 3.0 Gbps HD-SDI video signal with capability for four analog audio or two AES audio channels.  The system also supports bidirectional stereo audio for intercom with bidirectional RS-232 and RS-422 data capability. 

Click here for more information on the HD-3500 Series

 

 


 

 

Fiber-Comms Intercom Fiber Optic Link
The MultiDyne Fiber-Comms is a fiber optic extender for four-wire intercom. When used in conjunction with a two-wire to four-wire converter, such as the ST Model 45, two-wire intercom can be extended. The Fiber-Comms can transport from one to eight intercom or IFBs. The Fiber-Comms includes an XLR cable can be ordered to mate with Studio Technologies®, RTS or ClearCom® systems. The Fiber–Comms will transport control data as well.

Click here for more information on the Fiber-Comms

 

 

 
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Hot Products 

 

 

 

 

 

 

 

 

 
  
Trade Shows & Events 

 

 

 

12th Annual GV Tech Expo 2009
Conference: December 1 – 3, 2009
Exhibits: December 2 – 3, 2009
Booth # 615
Walter E. Washington Convention Ctr
Washington, DC.

 

 

MultiDyne Newsletter Archive, New Products, News , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

MultiDyne Short-Form Product Catalog

June 8th, 2009

Please click below for the MultiDyne Short-Form Product Catalog on the entire video and fiber optic transport systems product.

MultiDyne Short-Form Product Catalog on the entire video and fiber optic transport systems product.

For more than 30 years, MultiDyne has been a leading provider of innovative and outstanding video and fiber-optic-based transport systems for the broadcast, cable, satellite, production, digital cinema, pro A/V, corporate, retail, surveillance, teleconferencing, judicial arraignment, transportation, government, military, and healthcare markets. MultiDyne’s fiber optic transport systems for video, SDI, 3G HD, DVB/ASI, VGA, DVI, HDMI, audio, AES, Ethernet, data, CATV, as well as the company’s other broadcast accessories are used worldwide by such industry leaders as ABC, CBS, NBC, CNN, RAI, BBC and the Department of Transportation. MultiDyne provides a seven-year warranty on its core product line. For more information, call MultiDyne at 1-877-MULTIDYNE or 1-516-671-7278, visit the company’s Web site at www.multidyne.com, or send an e-mail to sales@multidyne.com.

Applications, New Products , , , , , , , , , , , , , , , , , ,

MultiDyne Seeking to Employ a Sales Manager or V. P. of Sales for Recent Position Opening

May 5th, 2009

MultiDyne Video & Fiber Optic Systems, a fast growing leader in Broadcast and Professional AV industries, is seeking an experienced sales manager or vice president of sales for video and fiber optic equipment sales. An immediate opening for a technically-oriented senior sales executive with 10+ years experience is available. A Bachelor of Science degree in Electrical Engineering is a plus.

 

 

The candidate will be expected to interface with customers, independent sales representatives, resellers and systems integrators. The position requires the ability to listen to the client’s requirements and developing a solution.

 

Responsibilities also include the management of the sales process from identifying the customer’s needs to closing with a purchase order. Once a project is sold, follow-up technical support may be required. Management of our Sales Channels from our Independent Sales Reps to our Value-Added Resellers is required. Basic computer skills are required. Experience with Outlook, Word, Excel and ACT is a plus. Marketing experience is a plus.

 

MultiDyne’s client base includes broadcast and cable television, sports, production, pro-AV, corporate, security, government and teleconferencing. We are a fast growing company with expanding markets world wide. There is plenty of room for growth and career advancement within MultiDyne. The position offers competitive salary, commission & benefits. Please send a resume and salary history to FAX 516-671-3362 or E-mail: jimj@multidyne.com. No Phone calls please. Please visit our web site at http://www.multidyne.com/corporate.cfm#employment for more company details.

 

 

MultiDyne is an equal opportunity employer. Thank you.

 

 

Sincerely,

 

 

 

 

Jim Jachetta

Sr. Vice President

Job Openings - Employment , , , , , , , , , , ,

2009 NAB New Products from MultiDyne

April 9th, 2009

Come see the many new products from MultiDyne Video and Fiber Systems at NAB 2009. Come see the latest innovations in the LiGHTBoX series of field portable fiber optic transport systems. Also come see the new HD-3500 HD SDI, audio and bidirectional data fiber optic transport system over one fiber. The innovative DVI-6000 DVI/RGB fiber optic transport system supports high-resolution graphics and video over a single fiber. The Fiber-Comm series extends 4 wire intercom over a single fiber.

Download the full Power Point Presentation below:

2009 NAB New Products from MultiDyne

Download the full PDF version of the presentation below:

http://www.multidyne.com/LiteratureList.cfm?CategoryID=1

Video of the MultiDyne Booth at NAB 2009:

MultiDyne NAB 2009 Booth: DVI, RGB. VGA Fiber Optic Link; LiGHTBoX HD-SDI Fiber Link

MultiDyne NAB 2009 Booth: DVI, RGB. VGA Fiber Optic Link; LiGHTBoX HD-SDI Fiber Link

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Optical Losses

April 1st, 2009

Optical Losses

Optical loss or attenuation can vary from 300 to 0.2 dBm/km for plastic or single-mode fibers, respectively. Optical fiber has different loss characteristics at different wavelengths. The optical windows, as mentioned earlier, are regions within the optical fiber spectrum with low loss.

The earliest fiber-optic systems operated in the first optical window in the 850 nm range. The second window is the 1310 nm range, which has zero dispersion. The third window is the 1550 nm window. A multimode fiber has an attenuation of about 4 dB/km at 850nm and about 2.5 dB/km at 1310 nm. The multimode fiber spectrum attenuation curve is shown in Figure 6.10-3. Note the high loss regions at 700, 1250, and 1380 nm. The single-mode fiber attenuation curve is shown in Figure 6.10-11. There are high-loss regions at 800, 1100, and 1490 nm regions. The high-loss region at about 1100 nm is called the mode transition region. This is where the fiber changes from multimode to singlemode characteristics.

In order to make use of the low-loss properties of a given region in the fiber, the optic light source must generate light at that wavelength. For multimode fiber, light sources are used in the 850 and 1310 nm wavelengths. In single-mode fiber, light sources are typically at 1310 and 1550 nm. CWDM lasers are in the 1470–1610 nm range. The curve in Figure 6.10-11 shows that the fiber has low loss and a flat spectrum at these wavelengths. Corning introduced a CWDM metro fiber that eliminated the high water peak or the high-loss region centered at about 1380 nm. Most single-mode fibers, on new installation, use this flatspectrum fiber with a usable spectrum from about 1270–1610 nm. The new fiber gives the ability to have up to 18 CWDM wavelengths on one single-mode fiber.

Most video fiber-optic systems take advantage of the 18 usable wavelengths. CWDM is far less expensive than its 42 wavelength counterpart, DWDM. With the fiber-optic systems available with up to 8 channels of video per wavelength, when combined with the capabilities of CWDM optical multiplexing, more than 144 channels of video can be transported over one fiber.

Plastic fiber is used over short distances due to high attenuation. The visible light region at around 650 nm is used over plastic fiber. Optical attenuation is constant at all bit rates and modulation frequencies. The attenuation in copper cable increases at higher bit rates and modulation frequencies. In a copper cable, a 100 MHz signal will be attenuated more per foot than a 50 MHz signal. This results in distances and bandwidth limitation. In a fiber cable, the 100 Mhz and 50 MHz signals are attenuated the same.

Figure 6-10-11 Singlemode Fiber Attenuation Curve

Figure 6-10-11 Singlemode Fiber Attenuation Curve

Applications, End-To-End System Design, NAB Engineering Handbook, Optical Loss , , , , , , ,

The Future of Video Fiber Optic Transport

April 1st, 2009

The Future of Video Fiber Optic Transport

Systems are currently in development for the transport of high resolution video at bit rates exceeding 10 Gbps.  Digital cinema and the proliferation of high definition television will demand fiber optic transport systems with high bandwidth capabilities.  Fiber transport to the home of video, telephone and internet traffic is slowly becoming a reality in many North American communities.  This will fuel the demand for high speed content delivery and distribution throughout the globe.

Fiber Optic Transport Systems for Broadcast Television, The Future of Video Fiber Optic Transport , , , , ,

Bandwidth of the Fiber Optic Medium

April 1st, 2009

Bandwidth

The optical losses and usable bandwidth of a fiberoptic system have to be taken into account. As mentioned
previously, multimode fibers have greater losses and less bandwidth compared to single mode.
Single mode has lower losses and very high bandwidth than does multimode.

Most manufacturers of multimode fiber-optic cable do not specify dispersion. They will provide a figure
of merit known as the bandwidth-length product or just bandwidth with units of MHz-kilometer. For
example, 500 MHz-km translates to a 500 MHz signal that can be transported 1 km. The product of the
required bandwidth and transmission distance cannot exceed 500:

BW × L ≤ 500

A lower bandwidth signal can be sent a longer distance.
A 100 MHz signal can be sent

L = BW – product/BW
= 500 MHz-km/100 MHz
= 5 km

Single-mode fiber typically has a dispersion specification provided by the manufacturer. The dispersion
is specified in picoseconds per kilometer per nanometer of light source spectral width or ps/km/nm. This
loosely translates to the wider the spectral bandwidth of the laser light source, the more dispersion. The analysis of dispersion of a single-mode fiber is very complex. An approximate calculation can be made with
the following formula:

BW = 0.187/(disp × SW × L),

where:

disp is the dispersion of the fiber at the operating wavelength with units seconds per nanometer per
kilometer.

SW is the spectral width (rms) of the light source in
nanometers.

L is the length of fiber cable in kilometers.

For example, with a dispersion equal to 4 ps/nm/km, spectral width of 3 nm, and a transmission length
of 20 km, then:

BW = 0.187/(4 × 10–12 s/nm/km) × (3 nm) × (20 km)
BW = 779,166,667 Hz or about 800 MHz.

If the spectral width of the laser light source is doubled to 6 nm the bandwidth will drop to about 390
MHz. This shows how significant the spectral width of the laser source is on the usable bandwidth of a fiber.
If a laser light source with a narrow optical spectral width is used, or a fiber with a lower dispersion figure,
the bandwidth and transmission distance will increase.

In single-mode fiber communications, there are two basic types of laser light sources. The first type is the
less expensive laser that uses Fabre-Perot laser diode (FP-LD) technology. The FP-LD is an inexpensive
choice for digital fiber-optic communication. With a spectral width of typically 4 nm or more, it is primarily
used for lower bandwidth or short-distance applications. The second is the distributed feedback
laser diode (DFB-LD) technology. These light sources are more expensive and are widely used for longdistance fiber-optic communications. The typical spectral width for a DFB laser is about 1 nm. When a DBF laser is used in combination with a low dispersion fiber, the transmission bandwidth and distance can be significantly higher.

Table 6-10-2 Typical Optical Fiber Loss

Table 6-10-2 Typical Optical Fiber Loss

Table 6-10-4 Typical Fiber Optic Bandwidth

Table 6-10-4 Typical Fiber Optic Bandwidth

See Table 6.10-2, which shows the typical fiber-optic cable losses, and Table 6.10-4, which shows the bandwidth for different types of fiber cable.

Applications, Bandwidth of the Fiber Optic Medium, NAB Engineering Handbook, Tech Talk with Jim Jachetta , , , , ,