Rohde & Schwarz
Rohde & Schwarz FSU3
20Hz - 3.6GHz Spectrum Analyser
20 Hz – 3.6 GHz Frequency Range
10 Hz – 10 MHz Resolution Bandwidth
-155 dBm (typical, at 1 GHz, preamp on) Display Average Noise Level (DANL)
-113 dBc/Hz (at 1 GHz carrier, 10 kHz offset) Phase Noise
50 Ohm Input Impedance

| Attribute | Value |
|---|---|
| Frequency Range | 20 Hz – 3.6 GHz |
| Resolution Bandwidth | 10 Hz – 10 MHz |
| Display Average Noise Level (DANL) | -155 dBm (typical, at 1 GHz, preamp on) |
| Phase Noise | -113 dBc/Hz (at 1 GHz carrier, 10 kHz offset) |
| Input Impedance | 50 Ohm |
| Maximum Input Level | +30 dBm (1 W) |
| Dynamic Range | Up to 110 dB |
| Amplitude Measurement Range | -160 dBm to +30 dBm |
| Video Bandwidth | 1 Hz – 10 MHz |
| RF Input Connector | N-type female, front panel |
Rohde & Schwarz FSU3 Options:
- FSU3 - B0 - Delete Manual
- FSU3 - B4 - Highly Accurate Reference Frequency
- FSP-B10 - External Generator Control
- FSU3 - B16 - LAN Interface 100BT
- FSU3 - B18 - Removable Hard Disk (Factory installation only)
- FSU3 - B19 - Second Hard Disk for FSU-B18
- FSU3 - B20 - Extended Environmental Specification
- FSU3 - B25 - Electronic Attenuator, 0 dB to 30 dB, with integrated 20 dB preamplifier
- FSU3 - FS-K3 - Noise Measurement Software
- FSU3 - FS-K4 - Phase Noise Measurement Software
- FSU3 - FS-K5 - GSM/EDGE Application Firmware
- FSU3 - FS-K7 - FM Measurement Demodulator
- FSU3 - FS-K72 - 3GPP BTS/Node B FDD Application Firmware
- FSU3 - FSU-Z1 - Service Kit
| Model | FSU3 |
|---|
The Rohde & Schwarz FSU3 Spectrum Analyzer covers a frequency range from 20Hz to 3.6GHz with an impressive DANL of <-152dBm and 1Hz RBW. It offers a variety of detectors and optional measurement personalities, all supported by advanced RF components and ASIC technology.
Compatible with FSE and FSIQ analyzers, it allows seamless integration into existing test systems and supports development, QA, and production workflows with unmatched dynamic range.
Testwall can supply the used Rohde & Schwarz FSU3, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Rohde & Schwarz FSU3.





