The Agilent/Keysight 87511A is a 50 Ohm S-parameter test set engineered for two-port device characterization in conjunction with the 8751A network analyzer. Operating from 100 kHz to 500 MHz, it delivers precise reflection and transmission measurements across standard impedance networks. The test set is available with either 7 mm connectors (Option 87511A-800) or Type-N female connectors (Option 87511A-001) at the main test ports, while RF IN, R, A, and B ports feature 50 Ohm Type-N female connectors.
Technical Specifications
Frequency Range: 100 kHz to 500 MHz
Impedance: 50 Ohm nominal (Ports 1, 2, and test ports)
Directivity:
• 100 kHz to 300 kHz: >30 dB
• 300 kHz to 200 MHz: >40 dB
• 200 MHz to 500 MHz: >35 dB
Port Match (R, A, B, RF IN): >20 dB
Source Match:
• 100 kHz to 300 kHz: >15 dB
• 300 kHz to 500 MHz: >20 dB
Operating Level: 20 dBm
Switch Repeatability: ±0.03 dB
Power Supply: +22 Vdc, 20 mA typical (supplied by 8751A analyzer)
Operating Temperature: 0°C to +55°C
Storage Temperature: -40°C to +70°C
Operating Humidity: 5% to 95% at 40°C (non-condensing)
Physical: 90 mm H × 432 mm W × 495 mm D; 5.7 kg
– Key Features
• Two-port S-parameter measurement capability
• Switchable connector options for test ports (7 mm or Type-N)
• Directivity exceeding 40 dB across mid-band frequencies
• Excellent port and source match specifications
• Compact 50 Ohm test architecture
• Controlled operation via D-sub 25-contact interface with 8751A analyzer
– Compatibility & Integration
Designed exclusively for integration with the Agilent/Keysight 8751A network analyzer. Interface uses a standard D-sub 25-contact female connector for command and power delivery.
