The HP/Agilent 8495H is a programmable attenuator for RF and microwave signal control from DC to 18 GHz. It delivers 0 to 70 dB attenuation in fixed 10 dB steps, engineered for automated test systems, calibration work, and precision measurement applications requiring stable, repeatable attenuation control.
Technical Specifications
• Frequency Range: DC to 18 GHz
• Attenuation Range: 0 to 70 dB in 10 dB steps
• Insertion Loss: 0.4 dB + 0.07 dB/GHz (at 0 dB)
• Maximum SWR: 1.35 (DC–8 GHz) / 1.5 (8–12.4 GHz) / 1.7 (12.4–18 GHz)
• Maximum RF Input Power: 1 W average, 100 W peak
• Impedance: 50 ohm
• Switching Time: ≤20 ms including contact settling
• RF Connectors: Type-N female, SMA female, or APC-7 (selectable)
• Programming Interface: 12-pin Viking socket or optional 14-pin DIP
• Weight: Approximately 2 lb
• Dimensions: 8 × 6 × 4 inches
– Key Features
• Attenuation Repeatability: ±0.01 dB typical; <0.03 dB typical across 5 million cycles per section
• Contact Technology: Gold-plated leaf spring contacts rated for minimum 5 million cycles per section
• Long Operational Life: Design ensures sustained performance under cyclic switching
– Typical Applications
• Automated RF test systems and signal conditioning
• Equipment calibration and measurement verification
• Dynamic range extension in receiver characterization
• Precision signal level control in microwave systems
– Compatibility & Integration
• Compatible with Keysight 11716A/B/C interconnect kits for cascaded operation—stack multiple units to achieve 1 dB step resolution and extended dynamic range
• Operating and Service Manuals available
