Agilent/Keysight 11583C

The Keysight 11583C is a four-piece coaxial attenuator set comprising 3 dB, 6 dB, 10 dB, and 20 dB fixed attenuators (8493C models) designed for precision signal attenuation in RF test and measurement applications. Each attenuator features APC-3.5 connectors and delivers calibrated performance across a broad frequency range with NIST-traceable certification. This set is essential for calibration laboratories and production environments where accurate attenuation control and reflection coefficient characterization are critical.

– Technical Specifications

• Attenuation Values: 3 dB, 6 dB, 10 dB, 20 dB
• Connector Type: APC-3.5 (compatible with SMA and 2.92 mm connectors)
• Frequency Range: DC to 26.5 GHz (resonance-free operation to 34 GHz with minor performance degradation)
• Impedance: 50 Ω
• Maximum Continuous RF Input Power: 2 W (derated to 1.3 W average at 55°C)
• Peak Input Power: 100 W
• Attenuation Accuracy (3 dB model): ±0.3 dB (DC to 18 GHz); ±0.5 dB (18 to 26.5 GHz)
• Attenuation Accuracy (10 dB model): ±0.5 dB (DC to 18 GHz); ±0.3 dB (18 to 26.5 GHz)
• Attenuation Accuracy (20 dB model): ±0.5 dB across DC to 26.5 GHz
• Temperature Stability: 0.0002 dB/dB/°C
• Power Sensitivity: 0.001 dB/W
• Physical Dimensions (per attenuator): 33.8 × 8 mm
• Weight (per attenuator): 8.5 g

– Key Features

• Four matched attenuators enable cascaded attenuation configurations up to 39 dB
• NIST-traceable calibration report included with reflection coefficient and attenuation accuracy data
• Low temperature drift ensures stable performance across operating environments
• Compact form factor with protective walnut accessory case for laboratory storage

– Typical Applications

• Calibration and standards laboratories
• RF signal conditioning and level control
• Impedance matching and reflection measurements
• Microwave network characterization

– Compatibility & Integration

Designed for integration with Keysight Microwave & RF Test Systems. APC-3.5 connectors provide direct mating with SMA and 2.92 mm connector interfaces.