Real time spectrum analyzer adds VNA as standard

September 11, 2020 //By Nick Flaherty
Real time spectrum analyzer adds VNA as standard
Rigol's RSA5000N and RSA3000N series add integrated VNA functions from 9 kHz to 1.5 GHz and up to 6.5 GHz. 

Rigol Technologies has added a VNA option (Vector Network Analyzer) to its real-time spectrum analyzers series

The RSA5000N and RSA3000N series now have the integrated VNA function as standard and are available in different bandwidths from 9 kHz to 1.5 GHz and up to 6.5 GHz. 

The VNA module fulfills all standard tasks for network analysis, such as measurement of the vectorial reflection (S11) and transmission factor (S21), as well as the implementation in the time range for distance error measurement [DTF], for example on cables. The dynamic range of the S21 measurement is <80 dB (nom.), while the directional attenuation of the internal coupler is <40 dB (nom.). The measurement bandwidth can be set in 1-3-10 steps between 1 kHz to 10 MHz.

Different windowing can be used for the DTF measurement. For a very precise determination of the distance of reflections, different parameters of the measurement object such as the shortening factor [Velocity Factor], cable attenuation and cable length can be entered. With up to 10,000 data points and up to eight markers, complex measuring tasks can be solved comfortably. RIGOL offers two different calibration kits: the high-precision CK106A and the low-cost calibration kit CK106E.

This function can also be set very easy and convenient. The measurement S11 can be represented as a Smith and polar diagram, phase and group delay, reflection factor and SWR, and much more. With the S21 and the DTF measurement, linear and logarithmic transmission loss, phase and group delay can be represented.

The modular RSA5000N and RSA3000N series also include four function modules for RTSA (real-time spectrum analyzer up to a maximum bandwidth of 40 MHz), GPSA (sweep-based spectrum analyzer with outstanding performance), EMI (pre-compliance tests according to CISPR specifications) and VSA (vector signal analysis for different digital demodulation and bit error measurement, on the RSA5000N).

Real-time spectrum analyzers are used in many test laboratories. The extended basic performance series RSA5000N or RSA3000N is a


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