Manufacturer Logo
Rohde & Schwarz

Rohde & Schwarz FSEK21

20 Hz – 21 GHz Frequency Range
10 Hz – 10 MHz Resolution Bandwidth
-130 dBc/Hz at 10 kHz offset (typical) Phase Noise
-155 dBm (typical, with preamplifier) Displayed Average Noise Level (DANL)
50 Ohm Input Impedance
Request datasheet
Attribute Value
Frequency Range 20 Hz – 21 GHz
Resolution Bandwidth 10 Hz – 10 MHz
Phase Noise -130 dBc/Hz at 10 kHz offset (typical)
Displayed Average Noise Level (DANL) -155 dBm (typical, with preamplifier)
Input Impedance 50 Ohm
Maximum Input Level +30 dBm (1 W)
Dynamic Range >100 dB
Sweep Time 2.5 ms – 16000 s
Video Bandwidth 1 Hz – 10 MHz
RF Input Connector N-type female (50 Ohm)
Rohde & Schwarz FSEK21 Options:
  • FSEK21 - FSE-B2 - 7 GHz Frequency Extension for FSEA
  • FSEK21 - FSE-B3 - TV Demodulator
  • FSEK21 - FSE-B4 - Low Phase Noise and OCXO (for models 20)
  • FSEK21 - FSE-B5 - FFT Filter 1 Hz to 1 kHz (for models 20)
  • FSEK21 - FSE-B7 - Vector Signal Analyzer
  • FSEK21 - FSE-B10 - Tracking Generator 7 GHz
  • FSEK21 - FSE-B11 - Tracking Generator 7 GHz with I/Q Modulator
  • FSEK21 - FSE-B12 - Switchable Attenuator for Tracking Generator
  • FSEK21 - FSE-B15 - Controller for FSE (mouse and keyboard included) German
  • FSEK21 - FSE-B15 - Controller for FSE (mouse and keyboard included) English
  • FSEK21 - FSE-B16 - Ethernet Interface 15-contact AUI connector
  • FSEK21 - FSE-B16 - Ethernet Interface Thin-wire BNC connector
  • FSEK21 - FSE-B17 - 2nd IEC/IEEE-Bus Interface for FSE
  • FSEK21 - FSE-B18 - Removable Hard Disk
  • FSEK21 - FSE-B19 - Second Hard Disk for FSE-B18 (firmware included)
  • FSEK21 - FSE-B21 - External Mixer
  • FSEK21 - FSE-B22 - Increased Level Accuracy up to 2 GHz
  • FSEK21 - FSE-B23 - Broadband Output 741.4 MHz
  • FSEK21 - FSE-K3 - Noise Measurement Software, Windows
  • FSEK21 - FSE-K4 - Phase Noise Measurement Software, Windows
  • FSEK21 - FSE-K10 - GSM Application Firmware, Mobile
  • FSEK21 - FSE-K11 - GSM Application Firmware, BTS
Calibration Form Rohde & Schwarz FSEK21

Repair Form Rohde & Schwarz FSEK21
Maximum file size: 40MB

No Related Posts

More Information
ModelFSEK21

The Rohde & Schwarz FSEK21 Spectrum Analyzer spans 20 Hz to 40 GHz, ideal for RF, radar, and satellite tests. It features a high dynamic range, low phase noise, and 0.5 dB amplitude accuracy with a modular upgrade path.

Designed for electronic warfare and telecoms, it supports up to 70 MHz demodulation, 1 Hz RBW/VBW, and offers fast sweep times and remote automation with GPIB and LAN control.

Testwall can supply the used Rohde & Schwarz FSEK21, 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 FSEK21

Clicky Copyright © 2025-present Magento, Inc. All rights reserved.