Rohde-schwarz- Measuring Receiver (Model:R&S®FSMR)

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Key Facts

  • Frequency range from 20 Hz to 3/26.5/43/50 GHz
  • Highly accurate level calibrator with wide measurement range from +30 dBm to –140 dBm
  • Highly accurate level calibrator
  • Modulation analyzer
  • Audio analyzer with THD and SINAD measurement functionality
  • Power meter for connection of R&S®NRP-Zxx power sensors
  • High-performance spectrum analyzer

Features & Benefits

  • Level calibration – precise, repeatable and easy

    • Excellent linearity and level stability
    • High tolerance with respect to frequency drift and residual FM
    • Easy operation for level calibration over a wide level range

  • Direct connection of power sensors for accurate power measurements

    • Power sensor module with integrated power splitter
    • Control of all functions incl. power meter from front panel or via IEC/IEEE bus or LAN
    • Many supported power meters
    • Automatic VSWR correction

  • Modulation and audio analysis made easy

    • Measurement of modulation depth, frequency deviation and phase deviation with < 1 % measurement uncertainty
    • Audio analysis with automatic measurement of modulation frequency, THD and SINAD
    • Display of audio signals and demodulated signals in frequency and time domain
    • Audio input for calibration of modulation generators

  • Versatile, high-performance spectrum analysis

    • Full-featured spectrum analyzer
    • Full choice of detectors
    • Versatile resolution filter characteristics and large bandwidth
    • Full range of analysis functions

Brief Description

The R&S®FSMR measuring receiver has been specially designed to handle the measurement tasks involved in the calibration of signal generators and fixed or adjustable attenuators.

Specifications

R&S®FSMR3 R&S®FSMR26 R&S®FSMR43 R&S®FSMR50
Frequency range 20 Hz to 3.6 GHz 20 Hz to 26.5 GHz 20 Hz to 43 GHz 20 Hz to 50 GHz
Reference frequency aging: 1 × 10–7/year, optionally 2 × 10 –8/year
Absolute power measurement using R&S®NRP-Zxx power sensor or external power meters
Uncertainty with R&S®NRP-Z27/-Z37: 0.083 dB (up to 4.2 GHz, +15 °C to +35 °C)
Relative level measurement
Measurement range +30 dBm to –140 dBm, depending on frequency
Linearity (+20 dBm to –140 dBm) ±0.01 dB ± 0.005 dB per 10 dB step
AM modulation measurements
Modulation depth 0 % to 100 %
Measurement uncertainty 1 % of reading, 50 Hz to 50 kHz;
0.4 % of reading, 90 Hz to 150 Hz, in range from 5 % to 99 %
Modulation frequency 10 Hz to 100 kHz
Inherent distortion 0.3 %
FM modulation measurements
Frequency deviation max. 500 kHz
Measurement uncertainty 1 % of reading, 50 Hz to 100 kHz
Modulation frequency 10 Hz to 200 kHz
Inherent distortion 0.1 %
φM modulation measurements
Phase deviation max. 10 000 rad
Measurement uncertainty 1 % of reading, 50 Hz to 100 kHz
Modulation frequency 10 Hz to 100 kHz
Inherent distortion 0.1 %
Audio measurements
Frequency range DC, 20 Hz to 1 MHz
Level ranges 0.4 V, 4 V
Measurement uncertainty 1 % of reading, 20 Hz to 100 kHz
Spectrum analyzer
Frequency range 20 Hz to 3.6 GHz 20 Hz to 26.5 GHz 20 Hz to 43 GHz 20 Hz to 50 GHz
Resolution bandwidths 10 Hz to 50 MHz; FFT filters: 1 Hz to 30 kHz; channel filters; EMI bandwidths
Video bandwidths 1 Hz to 10 MHz
Displayed average noise level (RBW 1 Hz)
1 GHz typ. –158 dBm typ. –156 dBm typ. –156 dBm typ. –156 dBm
26 GHz – typ. –151 dBm typ. –151 dBm typ. –151 dBm
43 GHz – – typ. –140 dBm typ. –140 dBm
50 GHz – – – typ. –133 dBm
Trace detectors Max Peak, Min Peak, Auto Peak, Sample, RMS, Average, Quasi Peak
Phase noise typ. –133 dBc (1 Hz) at 10 kHz from carrier, 640 MHz carrier frequency
Sweep time
Span > 10 Hz 2.5 ms to 16 000 s
Span 0 Hz (zero span) 1 μs to 16 000 s
Image frequency rejection
f < 3.6 GHz typ. 110 dB
f > 3.6 GHz – 0 dB
f > 3.6 GHz,
with R&S®FSMR-B2 option		 – typ. 100 dB
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