The Agilent/Keysight 355F is a fixed RF attenuator engineered for precise signal level control across DC to 1 GHz. This 50-ohm component delivers 11 dB maximum attenuation, making it essential for RF test systems, signal routing, and laboratory measurement setups where accurate power management is critical.
Technical Specifications
• Type: Fixed RF Attenuator
• Model: 355F
• Manufacturer: Agilent/Keysight
• Frequency Range: DC to 1 GHz
• Maximum Attenuation: 11 dB
• Impedance: 50 Ohms
– Key Features
The 355F operates across a broad frequency spectrum from DC through 1 GHz, supporting applications demanding wide-band attenuation performance. Fixed 11 dB attenuation simplifies integration into signal distribution networks and test configurations where predictable loss characteristics are required. The 50-ohm characteristic impedance ensures compatibility with standard RF systems and instrumentation.
– Typical Applications
• RF design verification and bench characterization
• Production testing and quality assurance workflows
• Signal level adjustment in measurement systems
• Laboratory test setups requiring precise attenuation
• System integration for signal routing and conditioning
– Compatibility & Integration
The 355F integrates directly into RF test and measurement systems where fixed attenuation values streamline circuit design and reduce component count. Engineers deploying this attenuator in signal paths benefit from predictable performance across the stated frequency band, enabling faster system validation and troubleshooting cycles.

















