The R&S FSMR50 Measuring Receiver is an advanced, all-in-one solution engineered for calibrating RF level and analog modulation parameters in signal generators and attenuation systems. This sophisticated instrument seamlessly integrates the functions of a level calibrator, modulation and audio analyzer, power meter, and spectrum analyzer, making it an indispensable tool for calibration and test measurement labs.
With a superior frequency range extending up to 50 GHz and exceptional linearity, the R&S FSMR50 is optimal for fulfilling challenging measurement tasks. Whether you're working with signal generators or fixed and variable attenuators, this versatile device covers all essential measurements required for precise calibration.
Featuring an impressive linearity value of 0.015 dB + 0.005 dB/10 dB, the R&S FSMR50 meets and exceeds current industry standards. It boasts a wide measurement range from +30 dBm to -130 dBm and offers adjustable measurement bandwidth between 100 Hz and 10 MHz, ensuring minimal impact from frequency offset or residual FM during level measurements.
The R&S FSMR50 provides comprehensive calibration capabilities for all modulation parameters and the device under test's (DUT) modulation generator. It comes with an integrated modulation analyzer and audio analyzer supporting analog modulation modes such as AM, FM, and PM. Additionally, the instrument includes a fully-featured spectrum analyzer and a power meter compatible with R&S NRP family power sensors.
Designed to accommodate the existing equipment investments of military calibration and development departments, mobile radio manufacturers, and metrology labs, the R&S FSMR50 supports power meters from other manufacturers, managed via an IEC/IEEE bus connection.
Operators will appreciate the R&S FSMR50's intuitive front panel, which allows for direct control of all functional components, including the level calibrator, modulation analyzer, audio analyzer, and spectrum analyzer. With GPIB and LAN interfaces, this measuring receiver ensures easy integration and remote control capabilities within measurement systems.
Functions Combined in One Instrument:
- High precision level calibrator
- Modulation Analyzer for AM/FM/PM
- Audio Analyzer with THD and SINAD measurements
- Support for NRP power sensors for absolute power measurements
- High-performance spectrum analyzer
Tailored Functions and Properties for Calibration Labs:
- Very high level stability over time
- User-friendly operation via the front panel
- Traceable calibration with documented procedures
- Specifications surpassing those of HP 8902 (option 050)
Key Specifications of the R&S FSMR50:
- Frequency Range: 20 Hz - 50 GHz
- Level:
- Linearity: 0.015 + 0.005 dB / 10 dB
- Level range: +10 dBm to -130 dBm
- Modulation Measurements:
- Measurement Range:
- Amplitude Modulation: 0 to 100% modulation depth
- Frequency Modulation: Max 500 kHz deviation
- Phase Modulation: Max 10,000 rad phase deviation
- Modulation Frequency:
- Uncertainty:
- Distortion:
- Audio Filters:
- Lowpass filters at 3 kHz, 15 kHz, 23 kHz, 100 kHz
- Highpass filters at 20 Hz, 50 Hz, 300Hz
- Deemphasis options of 25/50/75/750 µs
- Weighting filters CCITT, CCIR unweighted
- Audio Input:
- Input impedance: 50 Ohm or 1 MOhm
- Frequency range: 20 Hz to 1 MHz
- Internal harmonic distortion: 0.1%
- Spectrum Analyzer:
- Spectrum Analyzer R&S FSU50
Noteworthy Features:
- Wide level range: +10 dBm to -130 dBm
- Comprehensive modulation analysis: depth, frequency, and phase deviation
- Automated audio analysis with THD and SINAD
- FFT capabilities on both audio and demodulated signals
- Spectrum and time domain display options
- Low/high pass audio filters and deemphasis functionalities
- Separate audio input designated for calibration purposes
- High-resolution RF counter with 0.1 Hz precision
- Robust spectrum analyzer features comparable to the high-performing R&S FSU
- High resistance to drifting or unstable signals
- Full programmability via GPIB/LAN
Supported Technologies:
- GSM / EGPRS / EDGE Evolution
