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Wideband Testing

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The evolution of digital subscriber line (DSL) technologies and the increase of the bandwidth used present new testing challenges to service providers who deliver enhanced broadband services. In order to ensure quality of service (QoS) when delivering broadband services, wideband testing becomes essential. A wideband test is essentially any test method that involves measurement of parameters that depend on bandwidths up to 30 MHz, such as single-end frequency response measurement, PSD noise measurement, swept longitudinal balance test, etc.
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