Posts by John Urban

When Should You Use Shielded vs. Unshielded Ethernet Cable?


The core job of DSP is to process signals. In some cases, it’s adding or subtracting from the amplitude. In other cases, it’s enhancing or suppressing parts of the frequency response, and many DSPs are excellent for reducing and/or eliminating noise from the source signal. Unfortunately, the “Garbage In-Garbage Out” theory applies to AV signals:…


When Do You Need An AVB Switch?


You can connect two Tesira server-class AVB devices (Tesira SERVER, SERVER-IO AVB, TesiraFORTÉ AVB) together without the use of an AVB switch. The devices must be directly connected from AVB port to AVB port. The Control ports on the server-class devices may be directly connected to one another, or connected through an Ethernet switch. If…


Anatomy of a Cable – Optical Fiber


Fiber optic communications traces its roots back to Alexander Graham Bell. In 1880, he created the Photophone, which allowed for the transmission of sound on a beam of light. That same year, Bell conducted the world’s first wireless telephone transmission over a distance of 200 meters. There’s a lot of emphasis in the government sector…


Debunking Some Myths About AVB


Tesira began shipping a year ago on May 14th. In that relatively short period of time, we’ve sold four-figures worth of AVB-enabled products. That’s a lot, considering many companies still have a “wait and see” attitude towards AVB. Check out our ever-growing list of Tesira-centric case studies if you’re still unsure about where AVB is headed.…


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