Agilent / Keysight 85044B Transmission/Reflection Test Set, 300 kHz – 2 GHz

The Agilent/Keysight 85044B Transmission/Reflection Test Set characterizes 75-ohm devices from 300 kHz to 2 GHz, enabling simultaneous measurement of both transmission and reflection properties in a single direction. This accessory test set integrates with the Keysight 8753A/B/C or 8753D Option 011 network analyzers to provide biased active-device testing and flexible attenuation control. Reverse-direction characterization requires physical reorientation of the device under test.

– Technical Specifications

• Frequency Range: 300 kHz to 2 GHz
• Characteristic Impedance: 75 Ω
• Step Attenuator: 0 to 70 dB range, 10 dB steps, manual control
• Test Port Connector: Type-N female with precision 7 mm mating connectors
• Active Device Biasing: On-board biasing circuitry included
• Operating Temperature: 0°C to +55°C
• Relative Humidity: 5% to 95% at +40°C (non-condensing)
• Operating Altitude: Up to 4,500 m (15,000 ft)
• Net Weight: 1.7 kg (3.8 lb)
• Shipping Weight: 2.0 kg (4.4 lb)

– Key Features

• Dual simultaneous transmission and reflection measurements
• Manual attenuator with precise 10 dB step control
• Integrated biasing support for active component characterization
• Precision 7 mm test port connectors for low-loss connections
• Compact, field-portable form factor

– Compatibility & Integration

This test set operates exclusively with Keysight 8753A, 8753B, 8753C, and 8753D Option 011 network analyzers. The HP 11852B minimum loss pad is an available accessory for enhanced measurement accuracy.

Note: This is a discontinued product. Agilent provides this information for legacy system support only.