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Triaxial Cable, Belden, & Digital Broadcasters

by Nate Johnson on October 24, 2014

The radio and broadcast industry is going digital. Higher resolutions for HDTV and UHDTV are pushing traditional broadcast studios to embrace this technology, as their more modern counterparts are already doing so for online media. Digital formats have worked their way into recording studios, video postproduction, film production and many associated applications, and the reason is clear — digital provides superior audio and video performance. Bit stream coding is a vast simplification of complex audio and video signals.




Digital audio and video cables need to handle ever-higher digital frequencies. Also because this is audio and video, it must be processed in real-time, in sequence, and live. We only give alphanumeric “data” the luxury of re-transmits, processing delay, and blank screen tolerance. Audio and video signals must remain on-air, without any pause to “compile.” These are the challenges broadcast quality audio and video cables have to meet.


Why Choose Belden's Coaxial Cable?

If you are in the market for a cable that provides more bandwith and rejection of interference than traditional coax, Belden's triaxial cables can do the job. Belden has the most comprehensive offering  ranging from 14 to 22AWG used for flexible or permanent installs (direct burial, riser, plenum). Common applications include analog video cameras in the broadcast and television industry.

While triax cables can still be used in most coax applications, triax offers an additional layer of insulation and a second shield. This outer shield allows for the advantage of multiplexing the signal.Triax cables are not only able to work as a signal conductor, but as a power conductor as well. For this reason, the most common uses are for interconnecting video cameras to respective equipment enabling for the control and signal of the unit all in one cable.


Hand-in-hand with triaxial cable installations for digital broadcast studios, is the need for conduit. Belden has created a very useful conduit capacity calculator, which can be accessed below:




For those who are interested in learning more about how the future of the digital studio is on the verge of changing with the latest technological advances, take a look at the below technical bulletin on digital studio cable:




For more information on Belden's triaxial cable products, digital broadcasting solutions, or for general information for telecommunications products, contact your local Accu-Tech representative today!

Topics: cable copper Belden triaxial

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