The R&S FSH spectrum analyzer is rugged, handy and designed for use in the field. Its low weight, its simple, well-conceived operation and the large number of measurement functions make it an indispensable tool for anyone who needs an efficient measuring instrument for outdoor work.

Altogether six R&S FSH models for different applications and frequency ranges are available. The R&S FSH4 and R&S FSH8 can perform measurements up to an upper frequency limit of 3.6 GHz and 8 GHz, respectively. Models featuring a built-in tracking generator can also be used to determine the transmission characteristics of cables, filters, amplifiers, etc.

Additional models with built-in tracking generator and internal VSWR bridge are available for distance-to-fault (DTF) measurements, matching measurements and vector network analysis. All models have an adjustable preamplifier, making them suitable for measuring very small signals. Two power sensors are available as accessories – for precise terminating power measurements up to 18 GHz and for directional power measurements up to 4 GHz. The following tables show possible configurations for different standard functions and applications as well as an overview of available models.

Features:

• Frequency range from 9 kHz to 3.6 GHz
• High sensitivity (<–141 dBm (1 Hz), with preamplifier <–161 dBm (1 Hz))
• Low measurement uncertainty (<1 dB)
• Measurement functions for all important measurement tasks related to the startup and maintenance of transmitter stations
• Internal tracking generator and VSWR bridge with built-in DC voltage supply (bias)
• Two-port network analyzer
• 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
• 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