Rohde & Schwarz FSH404
Handheld Spectrum Analyzer, 9 kHz - 3.6 GHz

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Product Overview

ROHDE & SCHWARZ FSH404

The Rohde & Schwarz FSH404 Handheld Spectrum Analyzer builds upon the FSH3, FSH6 and FSH18 with network operators, TV broadcast operators, and military personal to offer an indispensable tool for field users who need an efficient measuring instrument. The new R&S FSH4 improves upon RF performance, CPU speed, display size, interfaces for memory expansion slot to further support a very wide range of applications, and truly make it a mobile precise measurement instrument. Depending upon model and installed options, it serves as a power meter, cable and antenna tester, or a two-part vector network analyzer. With the new and improved GUI and dedicated function keys, it provides better operation to field users.

Specifications of the Rohde & Schwarz FSH404 include:

• Frequency range from 9 kHz to 3.6 GHz 
• High sensitivity (<–141dBm (1Hz), or with optional preamplifier<–161 dBm (1 Hz ))
• Low measurement uncertainty (
• Internal tracking generator and VSWR bridge with built-in DC voltage supply (bias)
• Two-port network analyzer
• Directional power measurements up to 4 GHz under operating conditions
• Easy to replace Li-ion battery for up to 4.5 hours of operation
• Rugged, splash-proof housing for rough work in the field
• Easy handling due to low weight (3 kg with battery) and easy-to-reach function keys
• Saving of measurement results on SD card
• LAN and USB interface for remote control and transfer of measurement data
• R&S FSH4View software for simple documentation of measurement results

• Simplicity of Use
• Ruggedized mobile form factor
• Accessories for field users
• Improved RF performances
• Easy to replace Li-Ion battery pack with an external charger
• Internal VSWR bridge to reduce overall size and weight, making it easy to handle
• SD memory expansion slot to store measurements, results and installation settings
• USB and LAN interfaces supporting remote control functions and ease of firmware updates
• Faster CPU to provide quicker display updates
• Larger 6.5” VGA display allowing split screen mode