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Network, spectrum analyser features compact design

Posted: 28 Jan 2009     Print Version  Bookmark and Share

Keywords:spectrum analyser  test systems  power measurement  network analyser 

Rohde & Schwarz has announced the R&S ZVL3 75 network and spectrum analyser that features a wide range of functions, compact design, low weight (7kg) and optional battery-powered operation.

The combination of features is cost-effective for traditional applications and enables many new ones. The instrument's 75Ω connectors make the R&S ZVL3 75 suitable for development and production applications for TV, CATV or sat TV components and systems. Measurement tasks during installation and maintenance are also easily addressed by the R&S ZVL3 75, which features a frequency range from 9kHz to 3GHz.

As an all-purpose instrument for development, production and installation, the R&S ZVL3 75 is designed for passive component measurements including determining the impedance of filters and cables. Other prime applications include standard amplifier and antenna matching measurements during system installations.

The two-port bidirectional network analyser enables complete system error correction. Consequently, the R&S ZVL3 75 can perform high-precision S-parameter measurements on 75Ω device-under-tests (DUTs).

While most 50Ω instruments require matching pads, this is not necessary with the R&S ZVL3 75. The 75Ω test ports simplify handling while increasing stability, output level and dynamic range.

Because 75- and 50Ω test systems use similar connectors, a 75Ω socket may mistakenly be connected to a 50Ω plug and damaged. To prevent this, colour coding differentiates the 75Ω test ports from the 50Ω test ports. If the test port is ever damaged, the defective inner conductor can be replaced on site, eliminating cost-intensive repair and recalibration.

The power measurement option turns the R&S ZVL3 75 into a three-in-one instrument. As a network analyser, for example, it provides the S-parameters of a DUT. Using its spectrum analysis function, the R&S ZVL3 75 can measure the spectral components of an amplifier as well as adjacent channel power ratio or third-order intermodulation. When used with an external power sensor from Rohde & Schwarz, the R&S ZVL3 75 can also measure absolute power. Measurements in the time domain (TDR, distance-to-fault) help users locate cable faults during installation work.

The R&S ZVL3 75 can be operated with either front-panel keys or with a mouse and keyboard. It has a port for connecting an external monitor. To allow users to evaluate a large number of test parameters in parallel, the R&S ZVL3 75 can display up to 100 traces and diagrams simultaneously. The R&S ZVL3 75 also lets users switch quickly between preloaded setups.

The R&S ZVL3 75 is now available from Rohde & Schwarz.

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