Agilent/Keysight 85519A

The Agilent/Keysight 85519A is a 4-in-1 mechanical OSLT calibration module designed for RF and microwave applications spanning DC to 18 GHz. This compact unit integrates open, short, load, and through calibration standards into a single instrument, enabling precise system error correction across network and spectrum analyzer platforms. The 85519A delivers repeatable measurements with controlled phase error and return loss specifications tailored to three distinct frequency bands. Its 50 Ohm impedance and Type-N female connector architecture ensure straightforward integration into standard laboratory setups.

– Technical Specifications

• Frequency Range: DC to 18 GHz
• Impedance: 50 Ohm
• Connector: Type-N (female)
• Calibration Standards: Open, short, load, through (OSLT)
• Through Standard Electrical Delay: 244.949 ps
• Through Standard Insertion Loss: ≤ 0.035 dB × sqrt(f/GHz) across DC to 18 GHz
• Load Standard DC Resistance: 50 Ω ± 0.5 Ω
• Dimensions: 121 mm H × 89 mm W × 22 mm D
• Operating Temperature: +18 °C to +28 °C
• Storage Temperature: -40 °C to +70 °C
• Recommended Inspection Interval: 1 year

– Key Features

• Open Phase Error: ≤ 2.0° (0–6 GHz), ≤ 3.0° (6–9 GHz), ≤ 4.0° (9–18 GHz)
• Short Phase Error: ≤ 1.5° (0–6 GHz), ≤ 2.5° (6–9 GHz), ≤ 3.0° (9–18 GHz)
• Load Return Loss: ≥ 42 dB (0–6 GHz), ≥ 35 dB (6–9 GHz), ≥ 32 dB (9–18 GHz)
• Through Return Loss: ≥ 38 dB (DC–4 GHz), ≥ 34 dB (4–8 GHz), ≥ 28 dB (8–18 GHz)
• Compact form factor supports both laboratory and field deployment
• Connector torque specification: Finger tight or 12 lb-inch (136 N-cm) with torque wrench

– Typical Applications

Network analyzer calibration, spectrum analyzer verification, and RF measurement system characterization requiring OSLT error correction across microwave frequencies.

– Compatibility & Integration

Designed for use with Agilent/Keysight network analyzers and spectrum analyzers. Type-N female connectors enable standard RF interconnect compatibility.