Steve Windle, Trilithic Product Manager, wrote the Open Mic column for the May, 2010 issue of CED. The column, Upstream Spectrum Troubleshooting, is on page 16.
"Always a challenge, the upstream band in HFC networks is getting closer and closer to full utilization. Until now, it’s been a common practice to look at adjacent, unoccupied spectrum to evaluate noise/distortion performance. This technique assumes that what’s happening in adjacent spectrum is also happening in the active channel, and we all know what happens when we ass-u-me."
Thomas Powell, Trilithic Product Manager, and Francis Edgington are quoted in Digital T&M Aims for QoE from the January 20, 2010 issue of Communications Technology.
"You want to test (content) before it is turned back into an ASI stream and sent to the edge QAM," Trilithic Product Manager Thomas Powell said. "You want to verify content before it is sent to customers to know it is good. (An MPEG transport stream) product will help them at least at hubs, to identify whether or not the content is a problem or if it is a true RF issue," Powell said.
Francis Edgington, whom has collaborated with Trilithic on several projects, wrote the article Bullpen: Troubleshoot Video with Standards from the January 1, 2010 issue of Communications Technology.
Tracking down and isolating the root cause of poor subscriber quality of service (QoS) and quality of experience (QoE) in IP Video distribution networks is well served by a well-established specification: European Telecommunications Standards Institute (ETSI) technical report (TR) 101 290...
Steve Windle, Trilithic Product Manager, is quoted in Test & Measurement - A Preponderance of Evidence from the July 1, 2009 issue of CED Magazine.
Getting to both ends to attack the middle is another means of improving testing, monitoring and overall network quality. “It’s a divide and conquer strategy,” said Trilithic product manager Steve Windle. “In plant troubleshooting – say you have ingress. A cool thing we can do is show what’s happening at the hub site and at the remote position simultaneously on the screen.”
DOCSIS 3.0 Testing Now
As cable systems have begun deploying DOCSIS 3.0 (D3), there is an increased level of interest in the types of testing that can be done to verify quality and troubleshoot services. Field analyzers equipped with D3 modems will soon be available, but until that time, many very relevant tests can be performed using a DOCSIS 2.0 (D2) modem equipped analyzer...
Trilithic announced that Gary Eldore accepted hte position of regional sales manager for the western U.S. in the Broadband Instruments Divison. Eldore began his career in cable more than 20 years ago working for TCI. He comes to Trilithic with extensive experience in both field and sales management from his years at Multilink and AM Communications.
Trilithic Boasts New Perspective on Upstream Troubleshooting
Trilithic is offering a new way to troubleshoot upstream ingress and noise problems within active channel bands. The 860 DSPi TC-1 TraffiControl Option is used to see the ingress that is present "underneath" an upstream cable modem channel, or any bursty signal...
FCC Proof of Performance Tests... Made Easy
In addition to routine plant maintenance, which cable operators perform to ensure subscribers receive optimal uninterrupted service; this is also good business through sound engineering practices, cable operators must perform semiannual Proof of Performance Tests as required by the FCC. The FCC requires a cable operator's system to meet minimal performance specifications necessary to provide a sufficient signal throughout their system for their customers...
64 QAM Upstream Implementation Test Considerations
One of the keys to quicker, more trouble-free implementation of 64 QAM upstream is a good consistent preventative maintenance program. This includes a regimen of system sweeping, reverse spectrum monitoring, end-of-line tests and leakage monitoring. Additionally, before turning up the 64 QAM service, some specific tests should be performed to "certify" that each node is ready...
