Agilent / Keysight 85422E Receiver RF Section, 9 kHz to 2.9 GHz

The Agilent/Keysight 85422E Receiver RF Section is the RF front-end component of the 8542E EMI test receiver system, delivering precise signal reception and analysis across 9 kHz to 2.9 GHz. This modular unit captures and processes RF signals for EMI and conformance testing, with compliance to CISPR 16-1 and industry standards including CISPR, EN, FCC, VCCI, and VDE. It operates standalone for pre-compliance testing and integrates with the 85420E RF Filter Section to form a complete EMI compliance receiver.

Technical Specifications

• Operating range: 9 kHz to 2.9 GHz


• Tuning modes: Manual, stepped, and scanning (linear or logarithmic)


• Frequency reference aging: < ±1 × 10⁻⁷/year


• Frequency reference settability: < ±1 × 10⁻⁸


• Temperature stability: 10 MHz Detection & Measurement


• Measurement detectors: Peak, Quasi-Peak, and Average


• IF bandwidths (6 dB): 200 Hz, 9 kHz, 120 kHz (CISPR 16-compliant)


• Diagnostic IF bandwidths (3 dB): 30 Hz to 3 MHz in 1-3-10 steps, and 5 MHz


• Averaging bandwidths: 30 Hz to 3 MHz in 1-3-10 steps with digital filters (1, 3, 10 Hz)


• Sweep time: 20 ms to 100 sec


• Sweep triggers: Free Run, Single, Line, Video, External Input Characteristics


• Input connector: Type-N female, 9 kHz to 2.9 GHz


• Preamplification gain: 27 dB


• Input attenuator range: 0 to 70 dB


• Input VSWR: 2:1 (0 dB attenuation); 1.2:1 (10 dB attenuation); 1.6:1 (> 1.5 GHz, 10 dB attenuation)


• Maximum safe input (average power): 137 dBµV (30 dBm)


• Maximum safe input (peak pulse): 100 W peak for 10 µsec at 1% duty cycle with 30 dB attenuation


• DC voltage rating: 0 V (DC coupled); 50 V (AC coupled) Counter Resolution


• Spans ≤ 10 MHz: Selectable from 10 Hz to 100 kHz


• Spans > 10 MHz: Selectable from 100 Hz to 100 kHz

Key Features

• IF overload protection with dedicated detectors


• Quasi-Peak time constants conforming to CISPR Publication 16


• Modular architecture for integration into complex test setups


• Three measurement detector types for standards compliance testing

Typical Applications

• EMI/RFI pre-compliance and conformance testing


• Radiated and conducted emissions measurement


• RF signal monitoring and analysis


• Systems integration for automated compliance receivers

Compatibility & Integration The 85422E pairs with the 85420E RF Filter Section to form a complete EMI compliance receiver meeting CISPR 16-1 requirements. Standalone operation is supported for pre-compliance applications.