The Rohde & Schwarz FS300 is a spectrum analyzer engineered for RF signal monitoring, interference analysis, and spectral characterization across applications from mobile communications to EMC testing. Built on modern digital frequency processing, it delivers measurement accuracy, low noise performance, and dynamic range exceeding 137 dB—all within a compact, field-deployable form factor designed for both bench and portable deployment.
Technical Specifications
Frequency Range: 9 kHz to 3 GHz
Resolution Bandwidth: 200 Hz to 1 MHz in 16 selectable steps. Narrow-band filters achieve high frequency resolution and low noise floor; wide-band filters enable rapid sweeps for general-purpose measurements.
Video Bandwidth: 10 Hz to 1 MHz with 1, 2, 3, 5 sequence steps
Noise Performance: Displayed Average Noise Level (DANL) typically -115 dBm, improving to -120 dBm with 300 Hz RBW selection
Dynamic Range: Greater than 137 dB
Maximum Input Level: +33 dBm
Level Uncertainty: 0.7 dB typical; less than 1.5 dB maximum
Intermodulation Performance: Less than -70 dBc at both -36 dBm and -30 dBm input levels
Phase Noise (10 kHz Offset): Less than -90 dBc at 1 Hz bandwidth; typically -110 dBc at 1 MHz carrier offset
RF Input Attenuation: 0 dB to 70 dB in 2 dB electronic steps
Frequency Counter: Integrated high-accuracy counter with 1 Hz resolution
– Key Features
• TFT color display (320 × 240 pixels) with wide viewing angle capability
• Signal tracking, TOI measurement, and marker functionality including delta and noise markers
• TDMA power measurement and signal bandwidth analysis
• Setup and trace memory: 10 stored setups; up to 5 stored traces with 1 active and 1 reference trace
• USB interface with optional FS300-K1 software package for remote control
– Typical Applications
• RF spectrum and radiated interference measurement (EMC)
• Mobile radio and wireless communications testing (GSM, WCDMA, DECT, W-LAN, Bluetooth)
• TDMA power analysis
• Education and research
– Compatibility & Integration
USB connectivity enables integration into automated test systems. Electronic keypad and rotary knob operation support field measurement without external control interfaces.
