Keysight 8494A DC to 4 GHz Attenuator

The Keysight 8494A Step Attenuator is a reliable, high-precision manual attenuator offering fine-tuned signal control in 1 dB increments across a frequency range of DC to 4 GHz. With a total attenuation range of 0 to 11 dB, it’s built for long-term durability with gold-plated leaf springs designed to last over 5 million cycles. This attenuator delivers repeatable performance with minimal signal deviation, making it ideal for RF signal conditioning, receiver protection, and system-level calibration. It’s the go-to choice for engineers requiring highly repeatable manual attenuation in lab and field environments.

Key Highlights:

• Frequency range: DC to 4 GHz
• 1 dB step attenuation from 0 to 11 dB
• Exceptional repeatability: ±0.01 dB typical
• Insertion loss: 0.6 dB + 0.09 dB/GHz
• SWR: Maximum 1.5
• 5 million cycle lifespan per section
• RF power handling: 1 W average, 100 W peak
• Supports interconnection with 11716A/B/C kits for expanded range
• Ideal for lab setups, R&D, and RF component testing

Specifications:

• Frequency range: DC to 4 GHz
• Attenuation range: 0 to 11 dB
• Step size: 1 dB
• Insertion loss at 0 dB: 0.6 dB + 0.09 dB/GHz
• SWR: Max 1.5
• Repeatability: ±0.03 dB max over 5 million cycles
• RF input power: 1 W average, 100 W peak
• Life expectancy: 5 million cycles per section
• Connector type: Type-N (male/female)
• Compatible interconnect kits: Keysight 11716A/B/C
• Traceable calibration (Option UK6 available)