Rohde & Schwarz FSH20 Handheld Spectrum Analyzer 9kHz to 20GHz

The Rohde & Schwarz FSH20 is a handheld spectrum analyzer delivering comprehensive RF signal analysis across 9 kHz to 20 GHz. Built for field and laboratory deployment, it integrates spectrum analysis, two-port network analysis, cable and antenna measurement, and interference location in a single rugged platform. The splash-proof design withstands demanding outdoor conditions while the 7-inch antiglare color touchscreen (640 × 480 px) with monochrome mode ensures usability in extreme environments.

Technical Specifications

• Frequency Range: 9 kHz to 20 GHz


• Resolution Bandwidth: 1 Hz to 300 kHz; 100 Hz to 3 MHz (range defined in datasheet)


• Noise Floor (DANL): -163 dBm typical; up to -161 dBm (1 Hz) with preamplifier; -141 dBm (1 Hz) without preamplifier


• Amplitude Accuracy: < 0.5 dB


• Phase Noise: < -127 dB/Hz


• Sensitivity: -161 dBm (1 Hz) with preamplifier; -141 dBm (1 Hz) without preamplifier


• Demodulation Bandwidth: 20 MHz for LTE signal analysis


• Battery Life: Up to 4.5 hours (Li-ion, field-replaceable with external charger)


• Weight: Approximately 3 kg


• Dimensions: 300 mm (H) × 194 mm (W) × 144 mm (D) with handle

Key Features

• Two-port network analyzer with S-parameter measurement


• Integrated cable and antenna analyzer (CAT)


• Interference hunting and localization


• Power meter and channel power measurement (LTE, WCDMA, GSM, TD-SCDMA, cdmaOne, CDMA2000, 1xEV-DO)


• Adjacent channel power measurement (absolute or relative display)


• Spectrum emission mask (SEM) analysis


• N-type female connector

Connectivity & Data Management

• USB host/device and LAN (RJ-45) connectivity


• Remote control and documentation via LAN or USB


• SD card and external USB storage for measurement results

Typical Applications Spectrum monitoring, transmitter verification, interference detection, antenna tuning, network troubleshooting, and cellular signal characterization.