Agilent/Keysight 85044A

The Agilent/Keysight 85044A is a 50 Ω transmission/reflection test set enabling simultaneous measurement of reflection and transmission characteristics across 50 Ω devices. Designed for integration with Agilent 8753-series network analyzers, it delivers high directivity and stable tracking performance across its operational bandwidth.

– Technical Specifications

• Frequency Range: 300 kHz to 3 GHz
• Impedance: 50 Ω
• Directivity: 35 dB (DC–1.3 GHz); 30 dB (1.3–3 GHz)
• Insertion Loss: Typically 30 dB
• Tracking Error:
– Transmission Magnitude: ±1.5 dB (300 kHz–2 MHz)
– Transmission Phase: ±10° (300 kHz–2 MHz)
– Transmission Magnitude & Phase: ±1.5 dB / ±10° (2 MHz–Fmax)
• Dynamic Range: 80 dB
• Power Handling: 1 W
• Test Port Connector: Precision 7 mm
• Operating Temperature: 0–50°C
• Dimensions: 250 mm × 200 mm × 70 mm
• Weight: ~1.5 kg

– Key Features

• Precision 7 mm test port connector for repeatability and minimal measurement uncertainty
• High directivity performance extends measurement accuracy across the full frequency range
• Low insertion loss preserves signal integrity in transmission measurements
• 80 dB dynamic range supports both high-return-loss and low-loss device characterization
• Calibration kit includes open, short, load, and thru standards for SOLT calibration
• 1 W power handling accommodates moderate-power device testing

– Typical Applications

• Component characterization: filters, amplifiers, attenuators, couplers
• Transmission-line and interconnect S-parameter measurement
• Device reflection and insertion-loss verification
• Network analyzer calibration and validation

– Compatibility & Integration

Directly compatible with:
• Agilent 8753A/B/C network analyzers
• Agilent 8753D with Option 011