Agilent/Keysight E4412A

The Agilent/Keysight E4412A is a wide dynamic range CW power sensor engineered for precise RF and microwave power measurements from 10 MHz to 18 GHz. Operating across a 90 dB dynamic range, it measures power levels from -70 dBm to +20 dBm (100 pW to 100 mW) with measurement speeds up to 400 readings per second when paired with compatible E4416A meters. The sensor features a 50 Ω Type-N male input, excellent SWR performance, and internal EEPROM storage of calibration factors, linearity data, and temperature compensation for minimal measurement uncertainty. An optional E4412A-H02 extends the lower frequency limit to 100 kHz for broader application coverage.

– Technical Specifications

• Frequency Range: 10 MHz to 18 GHz (extended to 100 kHz – 18 GHz with option E4412A-H02)
• Power Measurement Range: -70 dBm to +20 dBm (100 pW to 100 mW)
• Dynamic Range: 90 dB
• Maximum Power Rating: 200 mW peak (+23 dBm)
• Impedance: 50 Ω nominal
• Connector: Type-N male with 12 in-lb (135 Ncm) maximum torque
• Measurement Speed: Up to 400 readings/second (E4416A); up to 200 readings/second (E4418B)
• Operating Temperature: 0 °C to 55 °C
• Storage Temperature: -55 °C to 75 °C
• Dimensions: 130 mm L × 38 mm W × 30 mm H
• Weight: 0.18 kg

– Key Features

• SWR ranges from 1.12 (10–30 MHz) to 1.27 (11–18 GHz) across the operating band
• CW power measurement with internal error correction via stored calibration data
• AC-coupled input rated to 20 VDC maximum
• Compact form factor suitable for benchtop and integrated measurement systems

– Compatibility & Integration

The E4412A connects exclusively to Keysight E44XX-Series power meters: EPM series (N1913A/14A, N1913B/14B, E4418B/19B), EPM-P series (E4416A/17A), and P-Series (N1911A/12A). Integration requires a compatible sensor cable such as the 11730A. Earlier power meter generations (430-Series, E1416A, 70100A) are not supported.