The Keysight (formerly Agilent / HP) 8720ES is a high-performance vector network analyzer designed for complete characterization of RF and microwave components. Operating from 50 MHz to 20 GHz, it integrates a synthesized source, an S-parameter test set, and a tuned receiver into a single instrument. It features 100 dB of dynamic range, fast sweep capabilities, and robust built-in vector accuracy enhancement, making it a reliable standard for both production and R&D environments.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488.2), RS-232, Parallel (Centronics), VGA out |
| Display | Color LCD |
Physical
| Parameter | Value |
|---|---|
| Dimensions (W×H×D) | 425 x 222 x 457 |
| Weight | 25 kg |
System Performance
| Parameter | Value |
|---|---|
| Frequency Range | 50 MHz to 20 GHz |
| Frequency Resolution | 1 Hz |
| Standard Impedance | 50 Ω |
Test Port Characteristics
| Parameter | Value |
|---|---|
| Test Port Connector Type | 3.5 mm (male) |
Source Characteristics
| Parameter | Value |
|---|---|
| Output Power Range | -75 to +5 dBm (standard) |
Measurement and Display Capabilities
| Parameter | Value |
|---|---|
| Measured Parameters (S-Parameters) | S11, S21, S12, S22 |
| Measurement Channels | 2 |
| Display Channels | 4 |
| Number of Data Points | 3 to 1601 |
| Sweep Types | Linear frequency, log frequency, power, CW time, list frequency |
Data Processing and Calibration
| Parameter | Value |
|---|---|
| Calibration Methods Supported | Full two-port, adapter-removal, optional TRL (with Option 400) |
| Electronic Calibration (ECal) | Supported |
| Test Sequencing | Internal automation supported |
| Pass/Fail Testing | Supported (with limit lines) |
Hardware Options
| Parameter | Value |
|---|---|
| Time Domain Analysis | Supported (Option 010) |
| Direct Sampler Access | Optional (Option 012) |
| High Power Test Set | Optional (Option 085) |
| Frequency-Offset Mode | Optional (Option 089) |
| Four Samplers and TRL Calibration | Optional (Option 400) |
Source
| Parameter | Value |
|---|---|
| Output Power Resolution | 0.01 dB |
Receiver
| Parameter | Value |
|---|---|
| IF Bandwidth Settings | 10 Hz to 6 kHz |
Options
| Parameter | Value |
|---|---|
| High-Stability Frequency Reference | Option 1D5 |
| Mechanical Test Port Switch | Option 007 |
Storage
| Parameter | Value |
|---|---|
| Removable Storage | 3.5-inch floppy disk drive (1.44 MB, DOS format) |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -40 °C to +70 °C |
Power
| Parameter | Value |
|---|---|
| Power Consumption | 280 VA maximum |
| AC Voltage Input | 90 to 132 Vac or 198 to 264 Vac (automatically selected) |
| AC Frequency Input | 48 to 66 Hz |
Compliance
| Parameter | Value |
|---|---|
| Electromagnetic Compatibility (EMC) | CISPR 11 / EN 55011 Group 1, Class A |
Performance
| Parameter | Value |
|---|---|
| Sweep Averaging | Sweep-by-sweep averaging; 1 to 999 averages |
| Trace Smoothing | 0 to 20% of span (selectable) |
Technology
Vector Network Analysis
Applications
RF & Microwave Component Characterization