# Agilent N5225A 50 GHz 2-Port PNA Network Analyzer, Option 200 (Standard Test Set) (Pre-Owned) # Agilent N5225A 50 GHz 2-Port PNA Network Analyzer, Option 200 (Standard Test Set) (Pre-Owned) ## Key Features At A Glance - Frequency coverage to 43.5 GHz (N5224A) or 50 GHz (N5225A) with 1 Hz frequency resolution - Available as 2-port (Option 200/201/217/219) or 4-port (Option 400/401/417/419) configurations - Extended power range option adds source and receiver step attenuators for wider dynamic range - Optional internal bias-tees (Option 219/419) rated to ±200 mA / ±40 VDC - System dynamic range up to 127 dB (1–26.5 GHz) with 10 Hz IF bandwidth per published specifications - Selectable IF bandwidth range of 1 Hz to 15 MHz (nominal) for noise-floor versus sweep-speed trade-off - GPIB, LAN/LXI Class C, and USB 2.0 interfaces standard for ATE integration via SCPI - 2.4 mm (male) test port connectors, 50 Ω nominal The Agilent N5225A is a 50 GHz PNA microwave network analyzer, part of the N5224A/N5225A PNA family covering 10 MHz to 43.5 GHz and 10 MHz to 50 GHz respectively. The instrument is offered in 2-port and 4-port configurations across multiple option levels: base models (Option 200 / 400), front-panel-jumper and R1 receiver-switch versions (Option 201 / 401), extended-power-range versions with source and receiver attenuators (Option 217 / 417), and full-featured versions adding internal bias-tees (Option 219 / 419). All variants share the same source, receiver, and IF architecture and the same 2.4 mm test port connector type. The PNA is used for vector S-parameter characterization of RF and microwave components and networks. The datasheet documents performance for full 2-port calibrated measurements using either the 85056A mechanical calibration kit or the N4693A 2-port electronic calibration module, with corrected directivity, source match, load match, reflection tracking, and transmission tracking specified across the full frequency range. The receiver architecture includes selectable normal and narrowband IF paths, IF gating for pulsed-RF point-in-pulse and pulse-profile measurements, and an external IF input that allows remote mixers to bypass the internal first converters. ValueTronics International has supplied PNA-family network analyzers from our 20,000 sq ft secure warehouse at 1675 Cambridge Drive, Elgin, Illinois since 1992. Every PNA we list is inventoried in our facility, photographed by our technicians, and performance-verified against the manufacturer's published specifications before shipment — not described from a vendor sheet or drop-shipped from a third party. That distinction matters on a $40,000-class instrument where condition documentation and connector integrity directly affect calibration validity. ## Brand Heritage The PNA network analyzer line originated within Hewlett-Packard's test and measurement division, which was spun off as Agilent Technologies in 1999. In 2014, Agilent's electronic measurement business was split off again as Keysight Technologies, which now manufactures and supports current-generation PNA instruments. N5224A and N5225A units bearing Agilent branding are functionally the same product family as their Keysight-branded successors and continue to receive calibration and service support through the Keysight network. ## Compare Other Models in This Series The N5224A and N5225A are two members of the PNA microwave network analyzer family, sharing identical source, receiver, and IF architecture and differing primarily in their upper frequency limit: 43.5 GHz for the N5224A and 50 GHz for the N5225A. Both models are offered as 2-port (Option 200-series) and 4-port (Option 400-series) variants, and within each port count the option levels add front-panel receiver-access jumpers and an R1 receiver switch, then source/receiver step attenuators for extended power range, and finally internal bias-tees at the top of the option ladder. Within either chassis, the option-level choice is the more consequential decision than the frequency choice for many applications. The base model (Option 200 / 400) provides the standard test set without front-panel access loops, while Option 201 / 401 adds the jumpers and R1 switch that allow direct receiver access and reference-channel re-routing for mixer measurements and external-test-set integration. Option 217 / 417 adds source and receiver attenuators that extend the usable input and source power range — important when characterizing high-gain amplifiers or working at low signal levels. Option 219 / 419 adds internal bias-tees on each test port, rated ±200 mA / ±40 VDC, eliminating external bias networks during active-device characterization. Each pre-owned N5224A / N5225A configuration listed below is its own product page with its own condition documentation, accessory list, and pricing. The model and option string determine measurement capability; the page you are on reflects what is physically in inventory for that exact configuration. The N5225A extends the PNA's frequency coverage to 50 GHz, picking up the 43.5–47 GHz and 47–50 GHz bands that the N5224A cannot reach. Above 43.5 GHz, the source maximum leveled power rolls off — the datasheet specifies +6 dBm from 43.5–47 GHz and –2 dBm from 47–50 GHz on the base models — and dynamic range narrows accordingly, but the receiver noise floor remains within a few dB of the lower-frequency values. The frequency-limit difference between the N5224A (43.5 GHz) and N5225A (50 GHz) drives the choice between the two models. Below 43.5 GHz, the two are specified identically across directivity, source/load match, tracking, dynamic range, noise floor, and source power — so the decision rests on whether the application needs coverage into V-band's lower edge. Within each chassis, the option-level ladder (00/01/17/19 or 00/01/17/19 at 4-port) adds capability in fixed increments documented in the corrected and uncorrected performance tables. The comparison table that follows lists each available configuration with its key headline specifications. Use the published frequency range, port count, and option-level feature additions (jumpers, attenuators, bias-tees) to identify the configuration that matches the measurement requirement, then confirm the per-option dynamic range and source power figures against the application. Model Frequency Range Ports Max Output Power **N5225A** 10 MHz to 50 GHz 2 13 dBm (50 MHz to 16 GHz) N5224A 10 MHz to 43.5 GHz 2 13 dBm (50 MHz to 16 GHz) N5224A 10 MHz to 43.5 GHz 2 13 dBm (50 MHz to 16 GHz) N5224A 10 MHz to 43.5 GHz 2 11 dBm (50 MHz to 16 GHz) Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Product Core & Specifications Specification Value Frequency N5224A Frequency Range 10 MHz to 43.5 GHz N5225A Frequency Range 10 MHz to 50 GHz Frequency Resolution 1 Hz Frequency Accuracy +/- 1 ppm Frequency Stability +/-0.05 ppm, -10° to 70°C; +/-0.1 ppm/yr maximum (typical) Test Port Output - Power Power Resolution 0.01 dB Maximum Settable Power (typical) 30 dBm Minimum Settable Power - Option 200/201/400/401 (typical) \-30 dBm Minimum Settable Power - Option 217/219/417/419 (typical) \-90 dBm Nominal (Preset) Power N5224A - Option 200/201/400/401 0 dBm Nominal (Preset) Power N5224A - Option 217/219/417/419 \-5 dBm Nominal (Preset) Power N5225A - Option 200/201/400/401 \-5 dBm Nominal (Preset) Power N5225A - Option 217/219/417/419 \-15 dBm Damage Input Level (All Ports) Option 200, 201, 219, 400, 401, 419 (RF, DC) 27 dBm, 40 V Option 217, 417 (RF, DC) 27 dBm, 7 V Reference Level Magnitude Range +/- 500 dB / +/- 500 degrees Resolution 0.001 dB / 0.01 degrees General System IF Bandwidth Range 1 Hz to 15 MHz, nominal CPU Intel 2.0 GHz Core i7 LXI Class Class C Front Panel RF Connectors 2.4 mm (male), 50 ohm, (nominal) Center Pin Recession 0.002 in. (characteristic) USB 2.0 Ports 4 ports, USB Type-A female Display 26.3 cm (10.4 in) diagonal color active matrix LCD; 1024 x 768 Rear Panel - 10 MHz Reference 10 MHz Reference In BNC female; 10 MHz ± 10 ppm; -15 dBm to +20 dBm; 200 ohm nom. 10 MHz Reference Out BNC female; 10 MHz ± 1 ppm; +10 dBm ± 4 dB into 50 ohm; Sine Wave Rear Panel - I/O Trigger Inputs/Outputs BNC(f), TTL/CMOS compatible Test Set IO 25-pin D-Sub connector Handler IO 36-pin parallel I/O port GPIB 24-pin D-sub Type D-24, female; IEEE-488 compatible LAN 10/100BaseT Ethernet, 8-pin USB Ports (Rear) 4 Host + 1 Device, USB 2.0 Line Power Frequency, Voltage 50/60/400 Hz @ 100-120 VAC; 50/60 Hz @ 220-240 VAC (auto switching) Maximum Power 450 watts Dimensions (W x H x D, with handles) Width with handles, without rack-mount flanges 458.7 mm (18.1 in) Height with bottom feet 279.1 mm (11.0 in) Depth with front and rear panel hardware, handles 649.6 mm (25.6 in) Weight (Nominal) 2-port models (Option 200, 201, 217, 219) - Net 39.1 kg (86 lb) 4-port models (Option 400, 401, 417, 419) - Net 41.8 kg (92 lb) **Important:** The 2.4 mm test port connectors are precision microwave interfaces with a center-pin recession of 0.002 in (characteristic). Maximum input damage level at the test ports is +27 dBm RF / 40 VDC on most options, but Option 217 / 417 reduces the DC damage threshold to 7 V due to the source attenuator.**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 system performance specifications apply with the N5224A/5A analyzer, 85133F flexible test port cable set, and a full 2-port calibration. The flexible test port cable set and calibration kit/ECal module are required for calibrated measurements and are not included with the base analyzer; order separately.**Important:** Effective dynamic range must take measurement uncertainties and interfering signals into account. Extended dynamic range at the direct receiver access input is only available in one-path transmission measurements and the receiver input must never exceed its maximum receiver input.**Important:** With a thru connection between test ports of Option 217 or 417 configuration, 7 VDC input to CPLR THRU ports damages the source attenuator on the connected port.Recommended pairing: the datasheet specifies corrected system performance using the Agilent 85056A mechanical calibration kit and the N4693A 2-port electronic calibration module for full 2-port calibrations across the instrument's frequency range. ## About this used unit - 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). **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 - 675.0 USD - **Vendor:** Agilent - **Type:** Network Analyzer - **Tags:** Agilent, Agilent Keysight, Analyzers, Manufacturers, Network, product_manual_group_1, Product_used ## Variants | Variant | Price | Available | |---------|-------|-----------| | None | 0.00 USD | In stock | | NIST Traceable | 600.00 USD | In stock | | NIST Traceable with Full Data | 637.50 USD | In stock | | ISO IEC 17025 Accredited | 675.00 USD | In stock | ## Images - Agilent N5225A 50 GHz 2-Port PNA Network Analyzer, Option 200 (Standard Test Set) (Pre-Owned) --- > Source: [ValueTronics](https://valuetronics.com/products/n5225a-agilent-network-analyzer-used) > Updated: 2026-05-30