Rohde & Schwarz FSE Series
8 models with full specifications from Rohde & Schwarz.
The Rohde & Schwarz FSE Series of spectrum and vector signal analyzers is designed for high-performance RF and microwave signal analysis. This legacy family serves engineers working on both analog and digitally modulated signals in aerospace, defense, and telecommunications. The series is divided into distinct product groups based on frequency coverage, with models operating up to 40 GHz. By offering high-speed sweep rates, wide dynamic ranges, and flexible resolution bandwidths, the FSE family provides reliable measurement capabilities for demanding laboratory and production environments.
- Frequency Limits
- 20 Hz to 40 GHz
- Resolution Bandwidth
- 1 Hz to 10 MHz
- Demodulation Formats
- AM, FM
- RF Input Impedance
- 50 Ω
Models in this series
| Model | Type | Frequency Range | RF Input Impedance | Display |
|---|---|---|---|---|
| FSEA20 | *misc | 9 kHz to 3.5 GHz | 50 Ω | — |
| FSEA30 | Microwave | 20 Hz - 3.5 GHz | 50 Ω | 9.5-inch active LC TFT (24 cm) |
| FSEB20 | *misc | 9 kHz to 7 GHz | 50 Ω | 9.5-inch Color TFT LCD, 640 × 480 pixels |
| FSEB30 | *misc | 20 Hz to 7 GHz | 50 Ω | 24 cm / 9.5-inch active LC TFT |
| FSEM20 | *misc | 9 kHz to 25.8 GHz | 50 Ω | 24-cm (9.5") Active Matrix Color LCD |
| FSEM30 | *misc | 20 Hz to 26.5 GHz | 50 Ω | 24 cm (9.5") active color TFT LCD |
| FSEK20 | *misc | 9 kHz to 40 GHz | 50 Ω | Color TFT Display with quasi-analog capability |
| FSEK30 | *misc | 20 Hz to 40 GHz | 50 Ω | 24 cm (9.5 in) active TFT color LCD |
Model Hierarchy and Frequency Ranges
The FSE family is structured into four main groups according to frequency coverage, with each group containing a '20' and a '30' model. The '20' models start at a frequency of 9 kHz, while the '30' models feature an extended lower range down to 20 Hz.\n\n* FSEA Group (up to 3.5 GHz): The FSEA20 (9 kHz to 3.5 GHz) and FSEA30 (20 Hz to 3.5 GHz) are tailored for RF and digital modulation analysis.\n* FSEB Group (up to 7 GHz): The FSEB20 (9 kHz to 7 GHz) and FSEB30 (20 Hz to 7 GHz) address higher RF and low-microwave bands.\n* FSEM Group (up to 26.5 GHz): The FSEM20 (9 kHz to 25.8 GHz) and FSEM30 (20 Hz to 26.5 GHz) support microwave signal measurements.\n* FSEK Group (up to 40 GHz): The FSEK20 (9 kHz to 40 GHz) and FSEK30 (20 Hz to 40 GHz) provide the highest frequency capabilities in the series.
Resolution Bandwidth and Sweep Configurations
Across the FSE Series, the standard video bandwidth range spans from 1 Hz to 10 MHz. Resolution bandwidths vary by sub-family. The '20' suffix models, including the FSEA20 and FSEB20, provide a resolution bandwidth (RBW) range from 10 Hz to 10 MHz. In contrast, models like the FSEA30, FSEB30, FSEM20, FSEM30, FSEK20, and FSEK30 offer an expanded RBW range of 1 Hz to 10 MHz.\n\nSweep times for zero span measurements start as low as 1 µs. For span-based measurements, sweep times range up to 16,000 seconds (or 16,000 s in the FSEB20, FSEB30, and FSEK30), enabling detailed signal analysis over long durations.
Demodulation and Option Support
All models in the series natively support AM and FM demodulation. Specialized signal analysis is achievable through hardware and software upgrades. For example, Option FSE-B7 provides vector signal analysis and adds FFT filter bandwidths (1 Hz to 10 Hz on the FSEA20, or 1 Hz to 1 kHz on the FSEM30). High-stability reference oscillators, such as the Option FSE-B4 OCXO, are available to improve frequency stability for narrow-band measurements.
Frequently asked questions
- What is the primary difference between the 20-suffix and 30-suffix models?
- The 20-suffix models (like FSEA20 and FSEB20) generally have a frequency range starting at 9 kHz and a minimum resolution bandwidth of 10 Hz. The 30-suffix models (such as FSEA30 and FSEB30) feature a lower frequency limit of 20 Hz and standard resolution bandwidth down to 1 Hz.
- Which FSE models provide the widest frequency range?
- The FSEK20 and FSEK30 provide the widest frequency coverage, both operating up to 40 GHz. The FSEK20 covers 9 kHz to 40 GHz, while the FSEK30 covers 20 Hz to 40 GHz.