Posts about GNSS

Multiple-system operators (MSOs) are continuously pushing the limits of their cable infrastructure. Fiber is being extended closer to the end customer in an effort to increase per-user capacity by reducing the number of active nodes in the coaxial network and limiting resource sharing on the coaxial cable ...
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The rapid growth of the internet of things (IoT) makes network timing an urgent issue. As more and more devices come online, synchronization becomes critical and with many emerging applications demanding far more accuracy, it’s important that precise timing can be ensured right across the network ...
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Synchronization is now an enabler for many high-value services. In the case of new mobile technologies, it’s even a prerequisite for service availability. Quite simply – if you don’t have sync you don’t have service! Synchronization enables business and if ever the flow of dollars is stopped someone will pay. With this kind of value attached, it’s no surprise that there’s so much interest both in the provision of synchronization as a service and in monitoring the service quality ...

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The new “enhanced” primary reference time clock (PRTC) recommendation from the International Telecommunication Union (ITU), G.8272.1, looks set to be one of this year’s key innovations in the world of network synchronization. Aimed at producing the levels of accuracy necessary for 5G, enhanced PRTCs (ePRTCs) go far beyond the current technology. While the time output of today’s PRTCs should be accurate to within 100ns of Coordinated Universal Time (UTC), this new generation of clocks promises to deliver time to within just 30ns. ePRTCs also offer a greater level of reliability – unlike current PRTC technology, which has no holdover specifications, the emerging enhanced clocks are able to hold time accurately for 14 days, ensuring time service performance during GNSS outages ...
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