The Keysight 8496H is a programmable step attenuator delivering precise signal level control from DC to 18 GHz. It provides 0 to 110 dB attenuation in 10 dB steps with exceptional repeatability of 0.01 dB typical and 0.03 dB maximum over 5 million cycles per section. This instrument excels in signal conditioning, calibration, and automatic test systems where accurate, repeatable attenuation is essential.
Technical Specifications
• Frequency Range: DC to 18 GHz
• Attenuation: 0 to 110 dB in 10 dB steps
• Insertion Loss at 0 dB: 0.6 dB + 0.09 dB/GHz
• Attenuation Repeatability: 0.01 dB typical; 0.03 dB maximum over 5 million cycles per section
• Maximum SWR: 1.5 (1.5–8 GHz), 1.6 (1.6–12.4 GHz), 1.9 (1.9–18 GHz)
• RF Power Handling: 1 W average, 100 W peak (10 µs maximum pulse width)
• Switching Time: 20 ms (including settling)
• Impedance: 50 ohms
• Operating Temperature: 0 to +55 °C
• Storage Temperature: –40 to +75 °C
• Humidity: < 95% relative
– Key Features
• Solenoid-driven switching with 20 to 30 Vdc coil voltage and 125 mA switching current at 24 V
• Minimum life exceeding 5 million cycles per section
• Choice of Type-N female, SMA female, or APC-7 RF connectors
• Programming via 12-pin Viking or optional 14-pin DIP connector
• Compact form factor: 6.25 in × 2.875 in × 1.6875 in (454 g)
• Rated for altitudes up to 4600 m (15,000 ft) operation
– Typical Applications
• Automatic test systems requiring repeatable signal attenuation
• RF calibration and measurement systems
• Signal conditioning in wideband test environments
• Cascaded attenuator configurations for extended dynamic range
– Compatibility & Integration
The 8496H integrates with Keysight 11716A, 11716B, and 11716C interconnect kits, enabling series connection of 8494/5/6/7 attenuator models for increased dynamic range in multi-stage applications.
