Sunrise Telecom announced a major firmware upgrade for its CM3000 and
CM3800 DOCSIS 3.0 cable-modem network and spectrum analyzers, enabling cable providers to identify and resolve impairments before they affect customer experience. Firmware
version 2.23 allows technicians to analyze and troubleshoot difficult
electrical interference and short-duration impulse noise problems in the
RF and fiber-distribution network.
New features include a fast spectrum display with a 0.3-µs sample rate and 100-ms sweep
rate to capture even the shortest burst of ingress, impulse noise, or
electrical interference in the upstream path. In addition, equalizer
stress, frequency response, and group delay measurements have been added
to the cable modem and digital video analyzer functions.
The firmware upgrade is available for both new and field-deployed CM3000 and CM3800 test instruments.
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.