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With the advent of 400G Ethernet, it has become critically important to fully understand and validate Forward Error Correction (FEC) logic and the related software and firmware. 400G Ethernet uses PAM-4 signalling optically and electrically. Because of the susceptibility to the impact of noise, distortion, and other disturbances, most links will run with a raw error […]

In 2020, experts estimate that there are at least 31 billion IoT-connected devices worldwide. These devices rely on 5G connection to function properly and thus, perhaps now more than ever, there is a huge demand for 5G-ready telecom engineers and fiber contractors. In fact, research conducted by IHS Markit has predicted that by the year […]

Every day, professionals across a range of industries rely on radio communications using Land Mobile Radio (LMR) technologies, including Project 25 (P25) radio systems. Whether a routine communication or a mission-critical emergency call, each transmission requires reliable and resilient technology. Radio test solutions play a critical role in ensuring that reliability and performance. Today, VIAVI […]

With the emergence of 400G Ethernet we have seen the wide deployment of higher order modulation in client interfaces.  We have moved from the mature NRZ of 100G and below to PAM-4 modulation both optically and electrically. This has allowed 400G links to be deployed for reaches of 10km. But what about applications like data […]

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