The Viavi 1G DSP SWEEP w/TDR Trilithic Series Maintenance Meter conveniently combines CATV, DOCSIS 3.1 Cable Modem, and cable TDR testing in one rugged, hand-held instrument. The meter allows users to maintain the health of a plant with one instrument, providing everything needed for system-wide testing.

Designed to meet maintenance technician challenges, the 1G DSP meter has powerful troubleshooting tools for experienced techs, yet simplifies decision making and streamlines standard processes and procedures for the more novice tech. This results in more efficient technicians, greater overall system health, and allows techs to continue using the same meter as they become more experienced.

The 1G DSP can achieve throughput testing speeds of up to a gigabit/sec using a dedicated Ethernet test port or the internal cable modem.

The 1G DSP can perform either roundtrip or one-way Key Parameter Index (KPI) measurements for full Ethernet service testing. With constant payload testing for Layer 2 through Layer 4, the 1G DSP is built for verification of both Ethernet Service Level Agreement (SLA) and Quality of Service (QoS) metrics.

The 1G DSP features a large, high resolution, ultra-bright, color touchscreen interface, simple pass/fail indicators, and powerful autotest apps to streamline troubleshooting and make the technician's job easier. Everything about this next-gen meter was built with the technician in mind-from remote control of the meter via a web browser, to the long battery life, quick charge time, and glow in the dark keypad for those dark, cramped spaces.

The included Forward Active Sweep feature uses carriers injected into non-active channel spaces by the 8300B FST Forward SpeedSweep Transmitter in the headend to test and set the tilt and gain of distribution amplifiers over frequency bands where there aren't any active carriers.

The instrument compensates for differences in the amplitudes of the carriers by comparing two sweeps, a reference scan saved to the 1G DSP (typically at the node or first active component of the network) and a test point in the field.

Time Domain Reflectometer (TDR) Testing

Maintenance techs often run into a variety of issues that may require "shooting" the cable with a TDR. In many cases this means they need to bring a separate instrument along for the test. This can be costly, as another instrument is involved, and the troubleshooting process is lengthened as the tech must return to the vehicle (at least) to get the application specific instrument for the test.

A high quality, accurate, precise TDR can be included with the tech's work horse meter, the 1G DSP. When a TDR test is needed, the tech can switch to an alternate test mode on the meter instead of going back to the truck (or office) to get an application specific instrument (TDR).

The step-type TDR has a measurement range of over 4000 meters with a zero dead zone and an accuracy of less than one foot for cables at any length. This meter is ideal for technicians who need to identify and locate impairments in coaxial cable, such as poor splices, water intrusion, pinched coax, poor quality cables, impedance mismatches, and bridged taps, or to determine how much cable is left on a reel.