The Rohde & Schwarz FSH313 is a handheld spectrum analyzer operating across 100 kHz to 3 GHz for field-based RF measurements and diagnostics. Built with low weight and rugged design, it delivers signal monitoring, interference hunting, and spectrum analysis in applications ranging from mobile base station installation to cable fault location and general lab use. The instrument combines portable form factor with measurement performance suitable for technicians and field engineers requiring on-site verification and troubleshooting.
Technical Specifications
• Frequency Range: 100 kHz to 3 GHz
• Displayed Average Noise Level (DANL): Typically –114 dBm at 1 kHz RBW; typically –135 dBm at 100 Hz RBW (with tracking generator)
• Level Accuracy: 0.5 dB typical
• Resolution Bandwidth: 1 kHz to 1 MHz in 1 and 3 step increments; 100 Hz to 1 MHz in 1 and 3 step increments
• Detectors: Sample, max/min peak, auto peak, and RMS
• Preamplifier: Internal, 100 kHz to 3 GHz
• Reference Frequency Stability: 1 ppm/year aging; 0 °C to 30 °C temperature drift
• Battery Runtime: 4 hours typical operating time
• Display: Color LCD
• Storage: Up to 256 traces and setups
– Key Features
• Tracking generator option for Distance-to-Fault (DTF) measurements, scalar and vector network analysis, and 1-port cable loss measurements
• TDMA POWER function for time-domain power measurements with predefined GSM and EDGE settings
• Channel-power measurement for definable transmission channel power determination
• DTF capability for cable fault location
• FSHView Software for measurement control and documentation
• PC data transfer interface
– Typical Applications
• Installation and maintenance of mobile radio base stations
• On-site RF cable fault location
• General spectrum measurements and development tasks
• Cable installation and verification
• Lab-based spectrum analysis
– Compatibility & Integration
Meets MIL, ANSI/IEEE, RTCA/DO-160, IEC CISPR, EN, ISO, Boeing, LV, and FCC standards. Operates on battery power for field portability.

















