The TDR (Time Domain Reflectometer) has been used in cable networks as an effective tool to find faults for decades. So why consider changing anything? If it isn’t broke don’t fix it, right? As TDR instrument development has been neglected, there is now an opportunity for improvements as can be seen in these points: Any […]
Why Signal Leakage, Why Now? Ingress has been the single largest thorn in the side of cable operators since the advent of CATV plants, only to be aggravated by the introduction of two-way services. Despite decades of innovation, the silver bullet solution to fully address this problem remains elusive. Why Ingress Is Such a Challenge: […]
Advancements in LiDAR (Light Detection and Ranging) system technologies are rapidly paving the road for intuitive self-driving systems. The push for automotive innovation does not come without addressing a unique set of challenges with functionality and safety at the forefront. As a leading manufacturer of high-performance optical filter technology for LiDAR systems, VIAVI Solutions has […]
The HFC Evolves Through the years, with the demand for additional speed and bandwidth cable systems have: Migrated from analog channels to 6 MHz SC QAM channels Migrated from modulation schemes from 16 QAM up to 256 QAM channels Migrated to DOCSIS 3.1 OFDM carriers consuming much larger areas of the spectrum Began migrating from […]
The Early Days of CLI Leakage The new regulations required the operator to monitor, measure with a specific technique, and log all system leakage. The operators soon realized that this was a difficult task with their current equipment, as signal level meters had insufficient sensitivity to measure 20 uV/m at even 10ft, much less be […]
Signal Leakage in Cable Networks, a Long and Winding Road Cable is a unique communications medium that has evolved from a rudimentary patchwork of transmission lines and components devised by an industrious group of technology pioneers decades ago into the leading broadband juggernaut that it is today. The remnants of this journey are still evident […]
Cable network maintenance techs and contractors at times need to find and fix cable breaks or faults, which are likely to occur in network locations that impact many subscribers, with a degradation in service or even a complete outage. This means that quick, simple, accurate and high-resolution testing is required. Sometimes the cable is underground, […]
Our team is excited to represent Viavi Solutions during an industy (IT and cloud-focused) event, VMworld, in San Francisco at booth #2235. We’ll be showcasing our latest innovation – the GigaStor Software Edition designed for managing performance in virtual, cloud, and remote environments. Here are some topline thoughts about why this product matters for our […]
With so many KPIs and metrics for tracking security and performance over networks, clouds, clients, and applications, it’s difficult to see how SecOps and NetOps engineers ever rise above the noise. VIAVI Solutions takes a different approach to eliminate the noise and improve engineer effectiveness in solving issues. An example of this in Observer is […]
Optical interconnectivity at 400 Gbps has introduced many new design challenges. These include the step from NRZ to PAM-4 coding with the presence of a background error rate, the new QSFP-DD form factor for transponders with thermal and integration challenges and aggressive cost expectations early in the lifecycle. One of the most difficult challenges is […]
