The Agilent N5224A and N5225A are PNA network analyzers offered in both 2-port and 4-port configurations. The N5224A covers 10 MHz to 43.5 GHz and the N5225A covers 10 MHz to 50 GHz, providing vector measurement of reflection and transmission characteristics across the microwave range. Both models share a common platform and selectable option set, differing principally in their upper frequency limit and the configuration chosen at order time.

A network analyzer characterizes how RF and microwave components respond to applied stimulus signals, measuring the scattering parameters that describe reflection and transmission behavior. These analyzers support full 2-port calibrated S-parameter measurements and group delay measurements. Internal receiver gates enable point-in-pulse and pulse-profile measurements, while external IF inputs allow the use of external IF signals from remote mixers by bypassing the analyzer's first converters, and an external test set driver is provided for driving remote mixers.

ValueTronics stocks and holds its own inventory in a 20,000 square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every pre-owned unit is inspected and functionally verified in-house before it ships, while new units ship factory-sealed exactly as received from the manufacturer. Holding inventory directly lets our team match the right instrument and configuration to your application and move it quickly when you order.

Brand Heritage

Agilent Technologies was formed in 1999 as a spin-off of the test and measurement business of Hewlett-Packard. In 2014, Agilent's electronic measurement division was established as an independent company, Keysight Technologies, which carried forward the network analyzer product lines.

Compare Other Models in This Series

The PNA family on this page comprises the N5224A and N5225A, two- and four-port vector network analyzers that share a common platform, display, and connectivity. They are distinguished by frequency coverage and by the option configuration selected at order time, allowing a buyer to match upper frequency limit and port count to the measurement task.

Across both models, the option structure follows a consistent pattern: a base test set, then progressive additions of front-panel jumpers and an R1 receiver switch, source and receiver attenuators for extended power range, and bias-tees. The comparison table below lays out how frequency range, port count, and option content differ across the configurations.

Each model in the family below links to its own dedicated product page with pre-owned-matched pricing. Select the model and frequency coverage that fit your application, then choose the configuration and condition that meet your budget and lead-time requirements.

The primary difference between the two models is upper frequency limit: the N5224A covers 10 MHz to 43.5 GHz, while the N5225A extends to 50 GHz and carries additional specified performance in the 43.5 GHz to 50 GHz band. Both are available as 2-port or 4-port instruments with a standard test set.

Within each model, the option suffix defines the test set content. Options 201/401 add front-panel jumpers and an R1 receiver switch; Options 217/417 further add source and receiver attenuators for extended power range; and Options 219/419 add bias-tees on top of the extended-power-range hardware. These differences affect available power range, direct receiver access, and damage input level, as detailed in the comparison table that follows.

Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.

Accessories Supplied

• Handles (all models are shipped with handles)

Product Core & Specifications

Important: Damage input level, all ports: +27 dBm RF; +40 VDC (Options 200, 201, 219, 400, 401, 419) or +7 VDC (Options 217, 417).

Important: All specifications and characteristics apply over a 25 °C ±5 °C range (unless otherwise stated) and 90 minutes after the instrument has been turned on.

Important: With a thru connection between the test ports of an Option 217 or 417 configuration, 7 VDC input to the CPLR THRU ports damages the source attenuator on the connected port (Table 39 footnote).

Important: Test Port Noise Floor and Direct Receiver Access Input Noise Floor may typically be degraded at particular frequencies below 500 MHz due to spurious receiver residuals.

Recommended pairing: the Agilent 85056A calibration kit or the N4693A 2-port electronic calibration module, used with the 85133F flexible test port cable set, for the full 2-port calibrated measurements these specifications are based on.

About this Pre-Owned unit

This pre-owned unit is inspected and functionally verified in-house before it ships and is backed by our pre-owned warranty. To confirm its exact condition, firmware revision, installed options, or included accessories for your application before ordering, contact our Test Architects.

• Warranty included
• Functional verification included
• Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data.
• Note that unnecessary accessories may not be included (contact Test Architect to confirm).

ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.

Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.