The Keysight (formerly Agilent HP) N5245A is a high-performance 50 GHz Microwave PNA-X Series Vector Network Analyzer (VNA). Highly configurable with 2 or 4 ports, the N5245A enables multiple comprehensive measurements—including S-parameters, compression, IMD, and noise figure—using a single connection. It features an integrated internal second source, built-in combiner, internal signal-routing switches, and internal pulse modulators, making it an exceptionally capable instrument for testing active components like amplifiers, mixers, and frequency converters.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | LAN, GPIB, USB |
| Display | 10.4 inch color touch screen |
| Nominal Impedance | 50 Ω |
| Operating System | Windows |
System Characteristics
| Parameter | Value |
|---|---|
| Frequency Range | 10 MHz to 50 GHz |
| Number of Test Ports | 2 or 4 (configuration dependent) |
| Number of Built-in Sources | Up to 2 sources (configuration dependent) |
| Test Port Connector Type | 2.4 mm (male) |
Sweep and Measurement Speed
| Parameter | Value |
|---|---|
| Number of Channels | 32 |
Advanced Measurement Capabilities and Options
| Parameter | Value |
|---|---|
| Internal Second Source Option | Available (for fast IMD measurements) |
| Internal Combiner Option | Built-in combiner available |
| Pulse Modulator Option | Internal pulse modulators and generators available |
| Signal Routing | Internal signal-routing switches for external instrument connection |
| Non-linear Component Characterization | Supported (Optional NVNA application) |
Frequency
| Parameter | Value |
|---|---|
| Source Frequency Resolution | 1 Hz |
Power
| Parameter | Value |
|---|---|
| Source Power Resolution | 0.01 dB |
Inputs & Outputs
| Parameter | Value |
|---|---|
| Time Base Reference Output | 10 MHz |
Display & Analysis
| Parameter | Value |
|---|---|
| Data Formats | Log magnitude, linear magnitude, phase, unwrapped phase, group delay, Smith chart, polar, SWR, real, imaginary |
Software & Calibration
| Parameter | Value |
|---|---|
| Calibration Types | SOLT, TRL, LRM, TRM, Unknown Thru, ECal |
Measurements
| Parameter | Value |
|---|---|
| Supported Sweep Types | Linear frequency, CW time, power, segment, log frequency |
Interfaces
| Parameter | Value |
|---|---|
| LAN Interface | 10/100/1000 BaseT Ethernet (RJ-45) |
| USB Ports | USB 2.0 Host (front and rear), USB 2.0 Device (rear) |
| External Reference Input | 10 MHz (typical) |
| External Reference Output | 10 MHz |
| Trigger Connectors | BNC female (rear panel) |
Software & Control
| Parameter | Value |
|---|---|
| Programming Interface | SCPI, COM/DCOM, LXI Class C |
Measurement Options
| Parameter | Value |
|---|---|
| Noise Figure Measurements | Option 029 |
| Frequency Offset Measurements | Option 080 |
| Vector and Scalar Converter Measurements | Option 083 |
| Intermodulation Distortion (IMD) Measurements | Option 087 |
| True-Mode Stimulus | Option 460 (requires 4-port configuration) |
Technology
Vector Network Analyzer (VNA)
Applications
Active device characterization, amplifier testing, mixer/converter measurements, pulse measurements, Intermodulation Distortion (IMD), Noise Figure (NF), and non-linear component testing.