The Rohde & Schwarz FSEK20 is a high-performance 40 GHz spectrum analyzer belonging to the renowned FSE series. Engineered for advanced signal and spectrum analysis, it delivers an outstanding dynamic range up to 152 dB, exceptional sweep speeds down to 1 us, and highly flexible resolution and video bandwidth options. With built-in features such as RMS detection, AM/FM demodulation, and mobile radio measurement support, the FSEK20 is an industry-standard benchtop solution for microwave, digital, and spread-spectrum wireless technologies.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488.2), RS-232-C, Parallel (LPT), External VGA |
| Display | Color TFT Display with quasi-analog capability |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 V to 240 V AC, 50 Hz to 60 Hz / 400 Hz |
| Operating Temperature | 0 °C to +50 °C |
| Dimensions (W×H×D) | 435 mm × 236 mm × 570 mm |
| Weight | 31 kg |
Frequency Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 9 kHz to 40 GHz |
| Minimum Frequency Span | 0 Hz (Zero Span) |
Amplitude and Dynamic Range Specifications
| Parameter | Value |
|---|---|
| Input Attenuator Range | 0 dB to 70 dB |
| Input Attenuator Steps | 10 dB |
Bandwidth (RBW / VBW)
| Parameter | Value |
|---|---|
| Resolution Bandwidth (RBW) Range | 1 Hz to 10 MHz |
| Resolution Bandwidth (RBW) Steps | 1/2/3/5 |
| Minimum Video Bandwidth | 1 Hz |
| Maximum Video Bandwidth | 10 MHz |
| Video Bandwidth (VBW) Steps | 1/2/3/5 |
Sweep and Trigger
| Parameter | Value |
|---|---|
| Minimum Sweep Time (Zero Span) | 1 µs |
| Pretrigger | Supported |
Measurement and Detection Functions
| Parameter | Value |
|---|---|
| Detection Modes | RMS, Peak, Min Peak, Sample, Quasi-Peak |
| Demodulation Modes | AM, FM |
| Mobile Radio Analysis Support | Digital and Analog Mobile Radio, Spread Spectrum Channel |
User Interface and Display
| Parameter | Value |
|---|---|
| Display Type | Color TFT |
| Quasi-analog Display Mode | Supported |
RF Inputs and Outputs
| Parameter | Value |
|---|---|
| RF Input Connector Type | 2.92 mm (K connector) female |
| RF Input Impedance | 50 Ω |
| External Reference Input | 10 MHz |
Digital Connectivity and Interfaces
| Parameter | Value |
|---|---|
| Keyboard Interface Port | 5-pin DIN |
| Printer Interface Port | 25-pin Parallel (Centronics) |
| SCPI Compatibility | Fully SCPI compatible command set |
Environmental and Standards Compliance
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 °C to +70 °C |
Display
| Parameter | Value |
|---|---|
| Display Resolution | 640 × 480 pixels |
Performance
| Parameter | Value |
|---|---|
| SSB Phase Noise (10 kHz offset, 1 GHz carrier) | <-113 dBc (1 Hz) |
| Frequency Counter Resolution | 0.1 Hz to 10 kHz (selectable) |
Inputs & Outputs
| Parameter | Value |
|---|---|
| IF Output (21.4 MHz) | BNC female |
Storage
| Parameter | Value |
|---|---|
| Floppy Disk Drive | 3.5" 1.44 MB |
RF Input
| Parameter | Value |
|---|---|
| Maximum Safe RF Input Power | +30 dBm (1 W) |
| Maximum DC Input Voltage | 0 V |
Trigger
| Parameter | Value |
|---|---|
| Trigger Sources | Free Run, Video, External, Line |
| External Trigger Input Connector | BNC female |
Frequency Reference
| Parameter | Value |
|---|---|
| Internal Reference Frequency | 10 MHz |
| Reference Frequency Output Connector | BNC female, 10 MHz |
Technology
Heterodyne Spectrum Analyzer
Applications
RF and Microwave Signal Analysis, Mobile Radio Testing, Spread Spectrum Analysis
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