Rohde & Schwarz FSH 4.04

The Rohde & Schwarz FSH 4.04 Handheld Spectrum Analyzer Kit is a highly versatile and portable solution designed for field engineers, technicians, and RF professionals who demand precision and reliability in spectrum analysis. Combining portability with advanced measurement capabilities, this analyzer allows users to accurately measure, monitor, and troubleshoot RF signals across a wide frequency range with ease.

Equipped with intuitive controls and a high-resolution display, the FSH 4.04 provides clear signal visualization, making it easier to identify signal distortions, interference, and spectrum anomalies in real-time. Its rugged design ensures durability in challenging field environments, while the lightweight, compact form factor allows for convenient use on-site, in laboratories, or on-the-go applications.

The FSH 4.04 supports a wide array of measurement functions including channel power, occupied bandwidth, spurious emissions, and frequency response analysis. With its fast sweep capabilities and high sensitivity, users can confidently conduct both simple and complex RF assessments efficiently. Additionally, the device offers flexible connectivity options for data logging, remote control, and seamless integration with other Rohde & Schwarz test equipment.

Ideal for applications in telecommunications, broadcasting, defense, and electronic manufacturing, the FSH 4.04 Handheld Spectrum Analyzer Kit ensures precise and reliable measurements, helping professionals maintain optimal system performance and comply with regulatory standards. Whether for troubleshooting, installation, or routine maintenance, this analyzer delivers the performance, portability, and precision that RF specialists require.

Technical Specifications

Frequency Range

9 kHz to 3.6 GHz (FSH4.04 model) – wideband spectrum analysis for general RF applications.

Resolution & Bandwidth

Resolution Bandwidth (RBW): 1 Hz to 3 MHz.
Display Average Noise Level (DANL): < –141 dBm without preamp / < –161 dBm with preamp (normalized/1 Hz).

Display & Controls

6.5″ color LCD with VGA resolution – clear signal visualization for monitoring.

Power & Portability

Replaceable Li‑ion battery – operation up to ~4.5 hours.
Weight approx. 3 kg (including battery) – easy to carry for fieldwork.

Interface & Storage

SD card slot for storing measurements.
USB and LAN for data transfer or remote control.

Measurement Features & Functions

RF Measurement Functions

Channel power, occupied bandwidth, and emission measurements.
Detectors: sample, peak, auto peak, RMS.

Analysis Support

Optional signal demodulation: GSM, WCDMA, LTE.
Functions as a 2‑port network analyzer with additional modules.

Additional Performance

Phase noise and third-order intercept (TOI) performance (~+15 dBm typical).
Voltage and antenna/cable characterization measurements when paired with sensors or options.

Dimensions & Construction

Size

Approx. 194 mm × 300 mm × 69 mm (without handle).

Build

Rugged, splash-proof housing – ideal for field use.

Portable RF Analyzer

Rohde & Schwarz FSH 4.04 For Sale