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 […]
It’s New Year’s Eve, the clock strikes midnight. You try making a VoLTE call to your friend to wish them well, but the call fails. WhatsApp is down, and your message doesn’t go through. At the very least networks should be able to handle 4G demands; the alternative is having to handle subscriber complaints and […]
The recent Capital One Cyber Incident provides us with yet another reminder of the dangers of becoming “cloud blind” as applications and data move to the cloud. Much has been written about the potential impact and cost of this cyberattack, but rather than focus on impact, let’s look at what readily available resources you have […]
In June of 2019, the NASA Office of Inspector General released a report revealing that in April of 2018, a cyberattack occurred that resulted in the compromise of data related to Mars missions. A hacker accessed the Jet Propulsion Laboratory (JPL) network in Pasadena, CA by targeting a Raspberry Pi device that was not authorized […]
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, […]
We’re only halfway through 2019, and it’s already shaping up to be a promising year for 5G. Verizon, AT&T and Sprint have launched 5G networks in select areas in the US; Swisscom is offering commercial 5G services in major towns and cities in Switzerland; EE switched on 5G in a number of city districts last […]
We are excited to announce that CRN®, a brand of The Channel Company, has named Carol Ann McKeown and Maribel Ortiz to its prestigious 2019 Women of the Channel list. The leaders on this annual list are from all areas of the IT channel ecosystem; representing technology suppliers, distributors, solution providers, and other IT organizations. […]
The UK government has recently permitted the use of Huawei technology in the nation’s mobile networks (albeit, the radio access network or “non-core”). Without getting caught up in a debate about security, we should focus on what this signifies to the industry; that the UK is serious about 5G, and does not want to limit […]
