The Agilent HP 8482A is a thermocouple-based RF power sensor engineered for precise average power measurements across 100 kHz to 4.2 GHz. This rugged instrument delivers measurement accuracy of ±0.5% (at 23 ± 3 °C) over a dynamic range from 1 µW to 100 mW, making it suitable for broadband RF characterization in communications and industrial applications.
The sensor features a 50 ohm Type-N male connector and excellent SWR characteristics that minimize mismatch uncertainty. Each unit ships individually calibrated with NIST-traceable calibration factor data across its operating frequency band. Power linearity reaches ±3% at elevated input levels (+10 to +20 dBm) with negligible deviation across the -30 to +10 dBm range.
– Technical Specifications
• Frequency Range: 100 kHz to 4.2 GHz
• Power Measurement Range: 1 µW to 100 mW (-30 dBm to +20 dBm)
• Impedance: 50 ohm
• Connector Type: Type-N (male)
• Sensing Element: Thermocouple power sensor
• Measurement Units: Watts, dBm, Percent, or dB
• Accuracy (2-year): ±0.5% (23 ± 3 °C); ±0.6% (25 ± 10 °C); ±0.9% (0 to 55 °C)
• Power Linearity: ±3% (+10 to +20 dBm); Negligible (-30 to +10 dBm)
• Operating Temperature: 0° to 55°C
• Storage Temperature: -40° to +75°C
• Physical Dimensions: 38 mm × 30 mm × 105 mm
• Humidity (operating): Less than 95% RH
• Operating Altitude: Less than 4,572 m; Storage/Shipment: Less than 7,600 m
– Key Features
• NIST-traceable individual calibration with frequency-dependent correction factors
• Excellent SWR reduces mismatch-related measurement uncertainty
• Thermocouple sensing element for stable average power detection
• Wide dynamic range spanning four orders of magnitude
• Compact form factor for field deployment
– Compatibility & Integration
The 8482A connects directly to Agilent/Keysight/HP power meters including 435B, 436A, 437B, 438A, 70100A, E1416A, EPM, EPM-P, EPM-441A, EPM-442A, E4418A, E4419A, E4418B, E4419B, N1911A, N1912A, N1913A, and N1914A models.
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