The Rohde & Schwarz FSP7 is a high-performance spectrum analyzer covering 9 kHz to 7 GHz, engineered for RF and microwave characterization across signal monitoring, component testing, and EMC compliance applications. It delivers typical displayed average noise level of –155 dBm at 1 Hz resolution bandwidth and phase noise performance of –145 dBc at 10 MHz offset (500 MHz center frequency). The instrument combines fast sweep capability—minimum 2.5 ms across frequency spans and 1 µs in zero-span mode—with flexible resolution filtering: 1 Hz to 10 MHz bandwidth range, EMI-standard bandwidths (200 Hz, 9 kHz, 120 kHz), and FFT filters from 1 Hz to 30 kHz.
Technical Specifications
Frequency Coverage: 9 kHz to 7 GHz
Noise Performance: Typically –155 dBm DANL (1 Hz RBW); –148 dBm at 1 GHz; –143 dBm at 7 GHz. With optional electronic attenuator (FSP-B25): –152 dBm typical.
Phase Noise: –113 dBc/Hz (10 kHz offset); –145 dBc/Hz (10 MHz offset at 500 MHz CF); –125 dBc/Hz (1 MHz offset).
Resolution Bandwidth: 1 Hz to 10 MHz; digital resolution filters 10 Hz to 100 kHz; EMI bandwidths (200 Hz, 9 kHz, 120 kHz); FFT filters 1 Hz to 30 kHz; channel filters 100 Hz to 5 MHz.
Sweep Performance: 2.5 ms minimum (≥10 Hz span); 1 µs minimum (zero span); maximum 16000 s.
Amplitude Accuracy: 0.5 dB total measurement uncertainty; 0.2 dB linear display (0 dB to –70 dB); <0.2 dB logarithmic deviation.
Dynamic Range & Linearity: 100 dB RMS detector dynamic range; –100 dB intermodulation-free range typical; 1 dB compression point 0 dBm; TOI typically 10 dBm.
– Key Features
• 21 cm TFT color display with split-screen layout and up to 3 traces per view
• ACP/multicarrier ACP, OBW, phase noise, and TOI measurements with automated routines
• Fast ACP mode for time-domain ACPR on high-speed signals
• Gated sweep capability for TDMA signal analysis
• RMS detector for digitally modulated signal power measurement
• List mode for selective, rapid power measurements
• Quasi-peak detector and noise figure measurement
• CCDF and crest-factor statistical functions
• Editable limit lines with PASS/FAIL indication
• Optional electronic attenuator for enhanced dynamic range
– Interfaces & Control
GPIB, RS-232-C, Centronics, USB, and optional LAN connectivity support automated test integration and remote operation at up to 55 measurements/second via GPIB.
– Typical Applications
Broadband RF signal monitoring, component validation across UHF/L/S/C-band, spurious emission detection, adjacent-channel power compliance, phase-noise characterization, and multi-signal intermodulation analysis.
