# Agilent N5221A 13.5 GHz 2-Port/4-Port PNA Network Analyzer (Pre-Owned) # Agilent N5221A 13.5 GHz 2-Port/4-Port PNA Network Analyzer (Pre-Owned) ## Key Features At A Glance - Frequency coverage from 10 MHz to 13.5 GHz (N5221A) or 26.5 GHz (N5222A) - Available as 2-port or 4-port models with a standard test set (Option 200/400 base configurations) - GPIB (IEEE-488), 10/100BaseT Ethernet LAN, and USB 2.0 interfaces; LXI Class C for automated test - 1 Hz frequency resolution with +/-1 ppm frequency accuracy across all options - Optional source/receiver attenuators for extended power range and optional bias-tees (Option 217/219/417/419) - 10.4 in diagonal active-matrix color LCD at 1024 x 768 resolution - Supports the 85052B mechanical calibration kit and N4691B / N4433A electronic calibration modules - System IF bandwidth range of 1 Hz to 15 MHz (nominal) The Agilent N5221A and N5222A are PNA Series vector network analyzers offered in both 2-port and 4-port configurations. The N5221A covers 10 MHz to 13.5 GHz and the N5222A covers 10 MHz to 26.5 GHz. Each model is built around a standard test set in its base configuration (Option 200 for 2-port, Option 400 for 4-port), with additional option tiers that add front-panel jumpers, an R1 receiver switch, source and receiver attenuators for extended power range, and bias-tees. A vector network analyzer characterizes how a device under test reflects and transmits RF energy, measuring S-parameters across a swept frequency range. These analyzers support full 2-port calibration with the referenced calibration standards and perform reflection and transmission measurements, group delay measurements, and point-in-pulse and pulse-profile measurements using the internal receiver gates. Segment-sweep operation allows predefined frequency segments to output higher power where extended dynamic range is required and reduced power where the maximum receiver input level would otherwise be exceeded. ValueTronics stocks its own inventory from a 20,000 sq ft 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 leave the building factory-sealed exactly as received. That combination of owned stock and hands-on verification of used equipment is what separates a ValueTronics order from a blind listing. ## Brand Heritage Agilent Technologies was created in 1999 when Hewlett-Packard spun out its test and measurement business as an independent company. In 2014, that electronic measurement business was renamed Keysight Technologies. Instruments carrying the Agilent brand date from this transitional period of the company's history. ## Compare Other Models in This Series The N5221A and N5222A make up a two-model PNA Series family that shares a common architecture and option structure while differing in maximum frequency coverage. Both are offered in 2-port and 4-port configurations and support the same calibration kits, interfaces, and option tiers. Across the family, the base models (Option 200 and Option 400) ship with a standard test set, while higher option numbers add front-panel jumpers, an R1 receiver switch, source and receiver attenuators for extended power range, and bias-tees. Each model below is its own dedicated product page with condition-matched pricing. Select the model and configuration you need, then choose the pre-owned listing that fits your budget and timeline. The N5222A extends coverage to 26.5 GHz, adding the 13.5 GHz to 26.5 GHz bands with their own published dynamic range and noise-floor figures, whereas the N5221A tops out at 13.5 GHz. The primary difference is frequency span: the N5221A covers 10 MHz to 13.5 GHz and the N5222A covers 10 MHz to 26.5 GHz. Both are available as 2-port models (Option 200, 201, 217, 219) and 4-port models (Option 400, 401, 417, 419), where the higher option suffixes add front-panel jumpers, the R1 receiver switch, extended-power-range attenuators, and bias-tees. Weight also tracks configuration, with 2-port models at a nominal 27 kg (60 lb) net and 4-port models at 36.7 kg (81 lb) net. See the comparison table that follows for the per-model and per-option specifics. Model Frequency Range Ports Test Port Connector **N5221A** 10 MHz to 13.5 GHz 2 or 4 3.5 mm (male), 50 Ω N5222A 10 MHz to 26.5 GHz 2 or 4 3.5 mm (male), 50 Ω Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Accessories Supplied - Front handles (all models are shipped with handles) ## Product Core & Specifications Specification Value Frequency Information, All Options Frequency Range 10 MHz to 13.5 GHz Frequency Resolution 1 Hz Frequency Accuracy ±1 ppm Frequency Stability vs. Temperature ±0.05 ppm, -10° to 70° C Frequency Stability vs. Aging ±0.1 ppm/yr maximum System Dynamic Range (dB), Option 200/400 - Specification 10 MHz to 50 MHz 94 50 MHz to 100 MHz 108 100 MHz to 500 MHz 118 500 MHz to 2 GHz 127 2 GHz to 13.5 GHz 127 Maximum Leveled Power (dBm), Port 1/Port 3, Option 200/400/201/401 - Specification 10 MHz to 50 MHz 12 50 MHz to 13.5 GHz 13 Power Level Accuracy (dB), All Options - Specification 10 MHz to 50 MHz ±1.0 50 MHz to 500 MHz ±1.0 500 MHz to 3.2 GHz ±1.0 3.2 GHz to 10 GHz ±1.0 10 GHz to 13.5 GHz ±1.2 Power Resolution and Settable Power, All Options Power Resolution 0.01 dB Maximum Settable Power 30 dBm (typical) Minimum Settable Power (Option 200/201/400/401) \-30 dBm (typical) Minimum Settable Power (Option 217/219/417/419) \-95 dBm (typical) Nominal (Preset) Power (Option 200/201/400/401) 0 dBm Nominal (Preset) Power (Option 217/219/417/419) \-5 dBm 2nd and 3rd Harmonics at Max Specified Power (dBc), N5221A - Typical 20 MHz to 4 GHz \-15 4 GHz to 13.5 GHz \-19 Phase Noise (dBc/Hz), All Options - Typical (1 kHz / 10 kHz / 100 kHz / 1 MHz offset) 10 MHz to 50 MHz \-100 / -95 / -95 / -120 50 MHz to 1 GHz \-107 / -117 / -112 / -127 1 GHz to 2 GHz \-101 / -111 / -106 / -121 2 GHz to 4 GHz \-95 / -105 / -100 / -115 4 GHz to 8 GHz \-89 / -99 / -94 / -109 8 GHz to 16 GHz \-83 / -93 / -88 / -103 Test Port Noise Floor (dBm) @ 10 Hz IFBW, N5221A - Specification 10 MHz to 50 MHz \-82 50 MHz to 100 MHz \-95 100 MHz to 500 MHz \-105 500 MHz to 2 GHz \-114 2 GHz to 13.5 GHz \-114 Damage Input Level RF, DC (Option 200/201/219/400/401/419) 30 dBm, 40 V RF, DC (Option 217/417) 30 dBm, 7 V Miscellaneous Information System IF Bandwidth Range 1 Hz to 15 MHz, nominal CPU Intel 2.0 GHz Core i7 LXI Class C Front Panel Information, All Options RF Connectors 3.5 mm (male), 50 ohm (nominal) Center Pin Recession 0.002 in. (characteristic) USB 2.0 Ports - Master 4 ports, USB Type-A female, USB 2.0 compatible Display 26.3 cm (10.4 in) diagonal color active matrix LCD; 1024 x 768 resolution Rear Panel Information, All Options 10 MHz Reference In BNC female; 10 MHz ± 10 ppm; -15 dBm to +20 dBm; 200 Ω nom. 10 MHz Reference Out BNC female; 10 MHz ± 1 ppm; +10 dBm ± 4 dB into 50 Ω; sine wave GPIB Two ports; 24-pin D-sub (Type D-24) female; compatible with IEEE-488 LAN 10/100BaseT Ethernet, 8-pin configuration Handler IO 36-pin parallel I/O port Line Power Frequency, Voltage 50/60/400 Hz for 100 to 120 VAC; 50/60 Hz for 220 to 240 VAC (auto switching) Maximum Power 450 watts Analyzer Dimensions and Weight Height (without bottom feet) 266.1 mm (10.5 in) Width (without handles or rack-mount flanges) 425.6 mm (16.8 in) Depth (without front and rear panel hardware) 533.0 mm (21.0 in) Net Weight, 2-port models (Option 200/201/217/219) 27 kg (60 lb) Net Weight, 4-port models (Option 400/401/417/419) 36.7 kg (81 lb) > **Important:** Option 217/417: with a thru connection between the test ports, a 7 VDC input to the coupler-thru (CPLR THRU) ports damages the source attenuator on the connected port. > **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:** Corrected (calibrated) measurement performance is specified using the 85052B mechanical calibration kit (or the N4691B 2-port / N4433A 4-port Electronic Calibration modules), the 85131F flexible test port cable set, and a full 2-port calibration; these calibration standards and cables are required to make corrected measurements. > **Important:** The extended dynamic range at the direct receiver access input is only available in one-path transmission measurements and should only be used when the receiver input will never exceed its maximum receiver input; it may typically be degraded at particular frequencies below 500 MHz due to spurious receiver residuals. > **Important:** Some instruments may ship with a more advanced microprocessor than the listed Intel 2.0 GHz Core i7 CPU. ## 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.** ## Details - **Price:** 0.0 USD - 600.0 USD - **Vendor:** Agilent - **Type:** Network Ana - **Tags:** Agilent, Agilent Keysight, Agilent Technologies, Analyzers, Inc., Keysight, Manufacturers, Model 5221, N5221, N5221A, Network, Network Analyzer, Pre-Owned, product_manual_group_1, Product_used ## Variants | Variant | Price | Available | |---------|-------|-----------| | None | 0.00 USD | In stock | | NIST Traceable | 525.00 USD | In stock | | NIST Traceable with Full Data | 562.50 USD | In stock | | ISO IEC 17025 Accredited | 600.00 USD | In stock | ## Images - Agilent N5221A 13.5 GHz 2-Port/4-Port PNA Network Analyzer (Pre-Owned) --- > Source: [ValueTronics](https://valuetronics.com/products/n5221a-agilent-network-analyzer-used) > Updated: 2026-06-02