Rohde & Schwarz FSIQ3 Vector Signal Analyzer, 20 Hz - 3.5 GHz

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Category: More than 3 GHz, up to 8.5 GHz

Rohde & Schwarz FSIQ3 Vector Signal Analyzer

The Rohde & Schwarz FSIQ3 Vector Signal Analyzer is a cutting-edge instrument designed to meet the rigorous demands of the 3G radio generation. With an impressive frequency range of 20 Hz to 3.5 GHz, this analyzer stands out for its exceptional performance and versatility in a broad spectrum of applications.

Key Features:

RBW Range: 1 Hz to 10 MHz in 1/2/3/5 steps for precise analysis.

High-Selectivity Filters: 5-pole resolution filters that ensure clean signal separation.

Fast Measurement Capabilities: FFT filter with 1 Hz to 1 kHz RBW for rapid measurements.

Exceptional Noise Performance: Displayed average noise floor of -150 dBm typical, in a 10 Hz bandwidth.

Dynamic Range: Ultrawide dynamic range of 75 dB ACPR for WCDMA (4.096 MHz integration BW).

Precision Measurement: True RMS detector delivers high-precision power readings regardless of the waveform.

Fast Spectrum Analysis: 5 ms sweep time across the full span for comprehensive spectrum evaluation.

Time Domain Analysis: 1 µs zero span sweep time for quick and precise time domain assessment.

Integrated Vector Signal Analysis: Covers all major mobile radio standards and modulation modes, offering versatile result displays including I and Q signals, vector and constellation diagrams, and numeric evaluations of modulation errors.

Frequency Domain Capabilities:

The R&S FSIQ3 excels in the frequency domain, providing accurate measurements of intermodulation and harmonics. With a dynamic range exceeding 110 dB and remarkable low phase noise, it is ideally suited for ACPR measurements in mobile radio systems, particularly WCDMA. This analyzer achieves a maximum ACPR of 75 dB at an input level of -12 dBm, ensuring reliability and precision in various applications.

Time Domain Functionality:

Featuring advanced burst analysis capabilities for TDMA systems, the FSIQ3 allows for precise assessments of timing characteristics. Its short sweep time of 1 µs combined with extensive bandwidth options up to 10 MHz minimizes measurement instrument effects, enabling accurate analyses of broadband systems. Users can benefit from customizable gated sweeps and marker functions for a detailed understanding of signals over selectable time periods.

Modulation Domain Features:

The integrated vector signal analyzer of the FSIQ3 provides extensive measurement options for both digital and analog modulated signals. With convenience at its core, it supports 18 mobile radio standards, including GSM, NADC, IS95, and WCDMA, allowing for rapid setup and reliable data acquisition. Result displays are comprehensive, offering predictive metrics like EVM (error vector magnitude), phase, and frequency errors, along with visual representations such as vector diagrams, constellation shapes, and modulation error tables.

The FSIQ3 is also equipped to act as a general-purpose measurement demodulator, accommodating a range of non-standard modulation techniques. With 13 digital demodulators, including BPSK, QPSK, and 16QAM, and a flexible symbol rate up to 6.4 Msymbol/s, it caters to varied measurement needs. Its analog demodulators leverage digital techniques for accurate long-term and temperature-independent measurements, making it ideal for detailed transmitter transient analysis.