By Steve Condra – In 2019 Teleste took the initiative to help operators in their 1.8 GHz considerations and performed measurements in a real network environment [2] to find out what can be expected of 1.8 GHz capable network elements and how operators can obtain the most out of their networks with minimal changes. The study focused on two questions:
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By Erick Davila – VeEX’s RTU-320 operates as both a TCP server and TCP client when testing against field test equipment. The RTU-320 performs bi-directional upstream and downstream tests, IPv6 V-PERF, bi-directional V-PERF that combines client-to-server and server-to-client tests into one. With up to two independent test blades, the RTU-320 enables 4x 10 Gbps test interfaces ensuring reliable and repeatable data.
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By Steve Condra – As the study concluded, even four amplifiers in a cascade can carry the magical 10 Gbps capacity. However, it is clear that to harvest the full potential of HFC networks, 1.8 GHz amplifiers should perform automatic adjustments. Alternatively, cable technicians should define rigorous methods to confirm that amplifier cascades are tuned to perfection even when outdoor conditions, such as temperature, change.
Read MoreBy Bernie Cadieux – As DOCSIS continues to spread its wings, new applications are emerging, too. As previously mentioned in last year’s advertorial, non-intrusive measurements leveraging adaptive equalization coefficients are being introduced more and more as non-intrusive alternatives to more traditional (and sometimes intrusive) methods.
Read MoreBy James Medlock – It seems like every day there is another press release announcing a new or expanded DOCSIS® 3.1 based gigabit service. Many operators have reported heavy interest from their subscriber base, looking for higher speed services to support the increasing number of devices and applications that they rely on each day.
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By Mike Venter – The cable industry’s optical networks are undergoing rapid and radical changes to support new distributed access architectures (DAAs). A DAA basically involves replacing legacy analog infrastructure with new remote PHY devices (RPDs) or remote MAC/PHY devices (RMDs).
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By Greg Calton – In the fast-paced environment of broadband communications, a simple approach to the creation and growth of networks is highly desirable. Strategic suppliers can help broadband service providers by bringing entire solutions to the table from a variety of technical disciplines.
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By Rami Kimari – Energy consumption in broadband networks is significant and so is their environmental impact. According to some studies, the carbon footprint of the Internet already exceeds that of global air travel [1], posing a challenge to the traditionally energy-dependent cable industry.
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By Cyrille Morelle and Winston Chang – When it comes to modern monitoring systems, proactive network maintenance (PNM) and predictive modeling are major parts of the solution to increasing customers’ quality of service and expectations. Advanced cable modems can now provide the information needed for constant monitoring at the customer premises.
Read MoreBy James Medlock – When you ask cable operators who have not deployed a proactive network maintenance (PNM) solution why, the first response is usually something along the lines of, “we have too many problems to fix already, we don’t have time for any more.”
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