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R&S®VISA is a standardized software library that allows fast communications over diverse interfaces with a wide variety of T&M instruments that are detected on the network from PC applications. R&S®VISA also includes a trace tool that simultaneously monitors communications between multiple applications and T&M instruments, and permits targeted analysis with the aid of efficient filters.
The R&S®TSStream multi-TS streaming software streams a number of MPEG transport stream files simultaneously over a single IP interface. The individual transport streams result in a high overall bit rate. To make the streams available on a standard PC, the R&S®TSStream software does not play the transport stream files directly from the hard disk but first loads them into the RAM. The maximum number and length of the transport streams depends solely on the PC's available RAM.
The need for higher data rates and flexibility for IP and Cable TV (CATV) has led to the introduction of DOCSIS®3.1. With channel bandwidths up to 192 MHz and 96 MHz on the downstream and upstream respectively as well as the cable network frequency extension up to 1.2 GHz (1.8 GHz as a future extension) the technical requirements of cable components have increased significantly. This application note describes a test scenario tor testing cable components with an R&S®CLGD Cable Load Generator for DOCSIS 3.1 or R&S®SFD DOCSIS 3.1 Generator and an R&S®FSW Signal & Spectrum Analyzer.
CLGD, FSW, Applicataion Card, CATV, DOCSIS 3.1 DOCSIS 3.1 BER testing on CATV amplifiers with R&S ® CLGD and R&S ® FSW DOCSIS 3.1 BER testing on CATV amplifiers with R&S®CLGD and R&S®FSW CLGD, FSW, Applicataion Card, CATV, DOCSIS 3.1 DOCSIS 3.1 BER testing on CATV amplifiers with R&S ® CLGD and R&S ® FSW DOCSIS 3.1 BER testing on CATV amplifiers with R&S®CLGD and R&S®FSW CLGD, FSW, Applicataion Card
For cable TV, the "last mile" to the connection at the home is the bottleneck that prevents higher data rates. The last mile is made up of optical fiber and coaxial cables, amplifiers and electrical/optical converters. This mix of optical fiber and coaxial cables is known as a hybrid fiber coax (HFC) network. One option for cable network providers to maximize both the downstream (DS) and upstream (US) data throughput using the existing cable TV network, but without making expensive changes to the HFC network infrastructure, is to employ the data over cable service interface specification (DOCSIS) 3.1.This Application Note discusses the fundamental technological advances of DOCSIS 3.1 and presents measurement solutions from Rohde & Schwarz.