R&S FSH4/FSH8/FSH13/FSH20 are classic all-in-one handheld RF comprehensive testers from Rohde & Schwarz, integrating five core functions: spectrum analyzer, cable & antenna analyzer, two-port vector network analyzer, power meter and interference hunter. Optimized for base station maintenance, on-site RF troubleshooting, EMI pre-compliance, vehicle RF and quick lab testing.

Four frequency variants cover microwave range from 9 kHz~3.6 GHz up to 9 kHz~20 GHz. Software options extend demodulation, vector analysis and interference capture functions. Splash-proof rugged chassis with built-in rechargeable lithium battery, approx. 3 kg weight for full-day single-hand field operation.