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Home > Rohde & Schwarz > FSH4/8 Series

Rohde & Schwarz FSH4/FSH8 Series Handheld Spectrum Analyzers

The new R&S®FSH4/8 builds upon successes of FSH3/6/18 with network operators, TV broadcast operators, and military to offer an indispensable tool for field users who need an efficient measuring instrument. The new FSH4/8 improved 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.

Field users can efficiently use and effectively address the following applications using the new R&S®FSH4/8:

  • Service & Maintenance on transmitter stations
  • Cable & Antenna tests
  • EMF measurements
  • EMI precompliance
  • Signal monitoring
  • Interference hunting
  • Precise power measurements

Key Facts

  • Frequency range from 9 kHz to 3.6 GHz or 8 GHz
  • High sensitivity (< –141dBm(1Hz), with preamplifier < –161 dBm (1 Hz ))
  • Low measurement uncertainty (< 1 dB)
  • 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 h 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
  • Save 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

Key Features

  • Ease of use
  • Ruggedized, yet 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 model

New Features

  • FSH firmware 1.10
  • Adds predefined settings for LTE and TD-SCDMA for channel power and occupied bandwidth measurements
  • n-dB down marker
  • Scalar Network measurements
  • Multilingual user interface
  • New resolution bandwidths
  • Improved sweep rates
  • Isotropic antenna support
  • DTF peak list
  • FSH3/6 dataset converter inside the R&S®FSH4View software
  • R&S®FSH-K45 Vector Voltmeter option
  • Adjustment of cable electrical length by means of an S11 measurement 
  • Measurement of phased array antenna elements (S21 phase measurement relative to reference antenna)
  • GPS Receiver for FSH4/8
  • Documentation of current location position
  • Improvement of the internal reference frequency






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