The Keysight (Agilent/HP) 8720D is a high-performance microwave vector network analyzer operating from 50 MHz to 20 GHz. Built with an integrated synthesized source, solid-state switching S-parameter test set, and a tuned vector receiver, it is designed for fast, accurate measurements of RF and microwave components. The 8720D features improved processing capabilities, making measurements and data transfers up to seven times faster than predecessor models.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488.2), Parallel, RS-232 |
| Display | Color CRT |
| Mass Storage | Internal 3.5-inch floppy disk drive (1.44 MB format) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 90 to 132 V / 198 to 264 V, 48 to 66 Hz |
| Operating Temperature | 0 to 55 |
| Dimensions (W×H×D) | 425 × 222 × 457 mm |
| Weight | 25 kg |
Frequency Characteristics
| Parameter | Value |
|---|---|
| Frequency Range | 50 MHz to 20 GHz |
| Frequency Resolution | 1 Hz |
| Source Signal | Built-in synthesized source |
| Frequency Accuracy | ±10 ppm (standard) |
| High-Stability Frequency Reference | Option 1D5 |
System Dynamic Range
| Parameter | Value |
|---|---|
| System Dynamic Range | Up to 105 dB |
Test Port Input Characteristics
| Parameter | Value |
|---|---|
| Test Port Impedance | 50 Ω |
Measurement Capabilities
| Parameter | Value |
|---|---|
| Measured Parameters (S-parameters) | S11, S21, S12, S22 |
| Number of Measurement Channels | 2 independent channels |
| Test Set Architecture | Integrated solid-state switching S-parameter test set |
Calibration Capabilities
| Parameter | Value |
|---|---|
| Calibration Methods | Response, Response & Isolation, 1-Port, Full 2-Port, TRL*/LRM* |
Time Domain (Option)
| Parameter | Value |
|---|---|
| Time Domain Capability | Supported (Option 010) |
Interfaces and Connectivity
| Parameter | Value |
|---|---|
| Front Panel Test Port Connectors | 3.5 mm (male) |
Performance
| Parameter | Value |
|---|---|
| Available IF Bandwidths | 10 Hz, 30 Hz, 100 Hz, 300 Hz, 1 kHz, 3 kHz |
| Maximum Output Power | +5 dBm (standard) |
| Source Harmonics | -15 dBc (typical, at maximum output power) |
Source Characteristics
| Parameter | Value |
|---|---|
| Power Sweep Range | 20 dB |
Measurement Features
| Parameter | Value |
|---|---|
| Display Formats | Log magnitude, linear magnitude, phase, group delay, SWR, Smith chart, polar |
| Limit Lines | Upper and lower limits with pass/fail testing |
| Trace Math | Vector division or subtraction of current linear data from memory data |
Options
| Parameter | Value |
|---|---|
| High-Power Test Set | Option 085 |
| Frequency Offset Mode | Option 089 |
| Fourth Receiver (TRL/LRM) | Option 400 |
Technology
Vector Network Analysis
Applications
Microwave and RF Component Testing