The Rohde & Schwarz FSW-B24 is an RF preamplifier option that enhances the sensitivity and signal-to-noise ratio of Rohde & Schwarz FSW series spectrum analyzers. With 30 dB of gain across its operating frequency range, the FSW-B24 is engineered for applications demanding superior low-level signal detection in research, development, and production environments.
Technical Specifications
The FSW-B24 operates across multiple frequency bands determined by model configuration:
• Frequency range: 100 kHz to 50 GHz (variant dependent)
• Available variants: 100 kHz to 13.6 GHz | 100 kHz to 26.5 GHz | 100 kHz to 43.5 GHz | 100 kHz to 50 GHz
• Gain: 30 dB
• Input power handling varies by FSW model and frequency band
• Third-order intercept (TOI) degrades nominally 5 dB when used with the R&S®FSW-B13 high-pass filter option
Input power handling with YIG preselector and RF preamplifier engaged:
FSW8/FSW13/FSW26: −10 dBm (10 MHz ≤ f < 1 GHz) | −13 dBm (1 GHz ≤ f < 8 GHz) | −15 dBm (8 GHz ≤ f ≤ 26.5 GHz)
FSW43: −5 dBm (10 MHz ≤ f < 1 GHz) | −10 dBm (1 GHz ≤ f 4 GHz)
– Key Features
• Enables significant noise floor reduction when paired with YIG preselector
• Switchable design allows engagement/disengagement to balance sensitivity against dynamic range
• Compatible across the full FSW analyzer product line from 8 GHz to 85 GHz models
• Multiple order number configurations support different frequency coverage requirements
– Typical Applications
The FSW-B24 addresses measurement challenges in weak-signal detection, including characterization of low-power RF components, ultra-wideband signal analysis, and systems requiring noise floor performance below standard analyzer specifications.
– Compatibility & Integration
Designed exclusively for R&S®FSW spectrum analyzers. Compatible models: FSW8, FSW13, FSW26, FSW43, FSW50, FSW67, FSW85. Operates synergistically with optional modules including the R&S®FSW-B4 OCXO frequency reference and R&S®FSW-B13 high-pass filter.
