Agilent/Keysight 8719ET

The Agilent/Keysight 8719ET is a vector network analyzer for RF and microwave component characterization across 50 MHz to 13.5 GHz. It measures all four S-parameters (S11, S21, S12, S22) with a single connection via built-in switching test set, delivering dynamic range up to 104 dB in transmission measurements and 103 dB with tuned receivers and variable-bandwidth IF filters. The instrument offers source stability within 10 ppm typical, frequency resolution to 100 kHz standard, and measurement update times of approximately 1 ms per point.

Output power ranges from −10 dBm to +5 dBm standard; Option 004 adds a 55 dB step attenuator to extend the source output range. Maximum test port power reaches +30 dBm without isolators or +43 dBm with high-power isolators.

Technical Specifications

• Frequency range: 50 MHz to 13.5 GHz


• Dynamic range: 100 dBm maximum; 103 dB with tuned receivers and variable-bandwidth IF filters; 102 dB (0.05–0.84 GHz) and 104 dB (0.84–20 GHz) in transmission


• Output power: −10 dBm to +5 dBm standard; maximum +30 dBm (no isolators) or +43 dBm (with high-power isolators)


• IF bandwidth: 15 Hz fine bandwidth with variable-bandwidth IF filters


• Source stability: 10 ppm typical


• Frequency resolution: 100 kHz standard; 1 Hz available with Option 001


• Measurement update rate: ~1 ms per point


• Attenuators: 55 dB maximum in 5 dB steps


• Directivity: 48 dB (0.05–8 GHz), 50 dB (8–20 GHz)


• Source match: 40 dB (0.05–8 GHz), 50 dB (8–20 GHz)


• Load match: 48 dB (0.05–8 GHz), 50 dB (8–20 GHz)


• Reflection tracking: ±(0.006 dB + 0.02 dB/°C) at 0.05–8 GHz; ±(0.006 dB + 0.03 dB/°C) at 8–20 GHz


• Transmission tracking: ±(0.013 dB + 0.02 dB/°C) at 0.05–8 GHz; ±(0.017 dB + 0.03 dB/°C) at 8–20 GHz

Key Features

• Single-connection measurement of all four S-parameters via integrated switching test set


• Time-domain capability with Option 010


• Frequency offset mode for direct mixer conversion loss measurement (Option 089)


• Up to 22 test limits per channel for consistent production testing

Typical Applications Filter, amplifier, and cable characterization in laboratory and production environments; RF and microwave component S-parameter measurement and analysis.

Compatibility & Integration Option 020 extends operation to 20 GHz; Option 040 extends to 40 GHz. Option 004 provides 55 dB step attenuation for extended source power range.