# Keysight N5249B 8.5 GHz PNA-X Network Analyzer (Pre-Owned) # Keysight N5249B 8.5 GHz PNA-X Network Analyzer (Pre-Owned) ## Key Features At A Glance - Available in 2-port or 4-port configurations across the PNA-X models N5249B, N5241B, and N5242B - Series frequency coverage up to 26.5 GHz; optional Low Frequency Extension reaches 900 Hz (500 Hz typical) - LAN (10/100/1000BaseT Ethernet), GPIB (IEEE-488), and USB 2.0 interfaces for ATE integration and remote control - 3.5 mm 50 Ω test ports with front-panel access loops for direct source and receiver access - Optional internal second source, combiner, and mechanical switches for multi-source measurements - Optional bias-tees and source/receiver attenuators for extended power range - Optional high-accuracy noise figure measurements via Option 029 with a dedicated noise receiver - 12.1 in (31 cm) 1280 × 800 color LCD, LXI Class C, auto-switching 100–240 VAC supply (450 W max) The Keysight PNA-X network analyzer family — comprising the N5249B, N5241B, and N5242B — is a line of 2-port and 4-port microwave network analyzers built for characterizing the linear and nonlinear behavior of RF and microwave components. Each model measures reflection (Sii) and transmission (Sij) S-parameters at its test ports, supported by full 2-port error-corrected calibration, and is offered in a range of test-set configurations identified by option number. Across the family, supported measurement applications include amplifier noise figure, amplifier gain compression, and amplifier swept intermodulation distortion, along with the equivalent frequency-converter measurements: converter noise figure, scalar mixer characterization with phase (SMC + Phase), converter gain compression, and converter swept intermodulation distortion. These measurement classes are enabled through dedicated measurement-application software options. Built-in pulse inputs and source modulators support point-in-pulse and pulse-profile measurements, and an external test set driver allows the analyzer to drive remote mixers. ValueTronics supports every PNA-X order from its own 20,000-square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois, where we stock and hold our inventory directly. Every pre-owned unit is inspected and functionally verified in-house by our technicians before it ships, while new units leave the warehouse factory-sealed exactly as received from the manufacturer. ## Brand Heritage Keysight Technologies carries forward a test-and-measurement heritage that began at Hewlett-Packard. HP's instrument business was spun off as Agilent Technologies in 1999, and Agilent's electronic measurement division became Keysight Technologies in 2014. ## Compare Other Models in This Series The PNA-X family on this page is a single network-analyzer platform offered as three models that share architecture, option set, and front-panel layout while differing in maximum frequency. The N5249B covers to 8.5 GHz, the N5241B to 13.5 GHz, and the N5242B to 26.5 GHz, each available in 2-port or 4-port form. Every model can be ordered with the same test-set options — extended power range via source and receiver attenuators, bias-tees, an internal second source with combiner and mechanical switches, and Option 029 for noise figure — so configuration is largely independent of which frequency model you choose. Each model below links to its own dedicated product page with pre-owned-matched pricing. Select the model whose frequency coverage and port count fit your application, then choose the pre-owned listing for that model to see current availability and pricing. The primary difference among the three models is upper frequency limit: 8.5 GHz (N5249B), 13.5 GHz (N5241B), and 26.5 GHz (N5242B), all sharing a 10 MHz standard low-frequency limit that the optional Low Frequency Extension lowers to 900 Hz. The comparison table below lists each model's frequency range alongside shared characteristics. Port count is a separate axis from frequency: each model is available as a 2-port or 4-port instrument, with 4-port units carrying a higher nominal net weight (37 kg versus 27 kg for 2-port). Test-set option numbers in the 2xx range denote 2-port configurations and the 4xx range denote 4-port configurations, with matching feature content at each tier. Model Frequency Range Ports Connector Type **N5249B** 10 MHz to 8.5 GHz 2 or 4 3.5 mm N5241B 10 MHz to 13.5 GHz 2 or 4 3.5 mm N5242B 10 MHz to 26.5 GHz 2 or 4 3.5 mm Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Accessories Supplied - Bottom feet - Handles - Front and rear panel hardware ## Product Core & Specifications Specification Value Frequency Information N5249B Frequency Range 10 MHz to 8.5 GHz N5241B Frequency Range 10 MHz to 13.5 GHz N5242B Frequency Range 10 MHz to 26.5 GHz N5242B Frequency Range (Option 425) 900 Hz to 26.5 GHz Frequency Resolution 1 Hz Frequency Accuracy ± 1 ppm Frequency Stability (Temperature) ±0.05 ppm, -10 °C to 70 °C Frequency Stability (Aging) ±0.1 ppm/yr maximum Test Port Output Power Maximum Settable Power 30 dBm Minimum Settable Power (Options 201, 401) \-30 dBm Minimum Settable Power (Options 21x, 41x, 22x, 42x) \-95 dBm Power Resolution 0.01 dB Nominal (Preset) Power (Options 201, 401, 205) 0 dBm Nominal (Preset) Power (Options 21x, 22x, 41x, 42x) \-5 dBm Noise Floor (dBm) at 10 Hz IFBW, Test Port - Specification 10 MHz to 50 MHz \-80 50 MHz to 100 MHz \-90 100 MHz to 500 MHz \-104 500 MHz to 2 GHz \-114 2 GHz to 8.5 GHz \-114 8.5 GHz to 13.5 GHz \-114 13.5 GHz to 20 GHz \-114 20 GHz to 24 GHz \-110 24 GHz to 26.5 GHz \-107 System Dynamic Range (dB), Options 201 or 401, Ports 1, 3 - Specification 10 MHz to 50 MHz 106 50 MHz to 100 MHz 119 100 MHz to 500 MHz 126 500 MHz to 2 GHz 132 2 GHz to 3.2 GHz 129 3.2 GHz to 8.5 GHz 133 8.5 GHz to 10 GHz 134 10 GHz to 13.5 GHz 133 13.5 GHz to 16 GHz 132 16 GHz to 20 GHz 130 20 GHz to 24 GHz 128 24 GHz to 26.5 GHz 122 Receiver Dynamic Range (dB), All Options - Typical 100 MHz to 500 MHz 125 500 MHz to 3.2 GHz 130 3.2 GHz to 8.5 GHz 130 8.5 GHz to 13.5 GHz 130 13.5 GHz to 16 GHz 130 16 GHz to 20 GHz 129 20 GHz to 24 GHz 126 24 GHz to 26.5 GHz 123 Damage Input Level - Specification Test Ports 1, 2, 3, 4 RF > +30 dBm, DC > 40 V Test Ports 1, 2, 3, 4 (Options 217, 222, 417, 422) RF > +30 dBm, DC > 7 V Source 2 Out 1, Source 2 Out 2 (Option 224) RF > +30 dBm, DC > 0 V Test Port 2, Noise Mode (Option 029 without Option 425 and 205) RF > +25 dBm, DC > 40 V Test Ports (Options 205, 425) RF > +20 dBm, DC > 50 V Front Panel Information Test Port Connectors 3.5 mm (male), 50 ohm (nominal), 0.002 in. Center Pin Recession Display Size 31 cm (12.1 in) diagonal color active matrix LCD; 1280 (horizontal) x 800 (vertical) resolution Display Refresh Rate Vertical 60 Hz; Horizontal 49.31 kHz USB 2.0 Ports 4 ports (front panel), USB Type-A female General Information System IF Bandwidth Range 1 Hz to 15 MHz, nominal LXI Class C Line Power Frequency / Voltage 50/60/400 Hz for 100 to 120 VAC; 50/60 Hz for 220 to 240 VAC Maximum Power Consumption 450 watts Analyzer Dimensions Height (with bottom feet) 279.1 mm (11.0 in) Width (without handles or rack-mount flanges) 425.6 mm (16.8 in) Width (with handles and rack-mount flanges) 482.9 mm (19.0 in) Depth (with front and rear panel hardware, handles) 578.0 mm (22.7 in) Weight (nominal) Net, 2-port models 27 kg (60 lb) Shipping, 2-port models 43 kg (95 lb) Net, 4-port models 37 kg (82 lb) Shipping, 4-port models 53 kg (117 lb) > **Important:** All specifications and characteristics apply over a 25 °C ±5 °C temperature range (unless otherwise stated) and after the instrument has been turned on for 90 minutes. > **Important:** Option 029 (high-accuracy noise figure hardware) requires Option 219, 222, 224, 419, 422, or 423. > **Important:** Option 029 operation does not apply with LFE enabled. > **Important:** To measure below 10 MHz, the Low Frequency Extension (LFE) option must be enabled. > **Important:** Corrected System Performance and Dynamic Accuracy charts apply only to N5241B, N5242B, and N5249B models with serial numbers starting with MY5241/42/49, SG5241/42/49, and US5241/42/49, and above. > **Important:** A calibration kit or ECal module (e.g., 85052B, N4691B, N4691D, N4433A) is required to perform calibrated measurements and is not included; specifications also assume an N4697F flexible test port cable and a full 2-port calibration. ## 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 - **Vendor:** Keysight - **Type:** Network Analyzer - **Tags:** product_manual_group_3 ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 0.00 USD | In stock | ## Images - Keysight N5249B 8.5 GHz PNA-X Network Analyzer (Pre-Owned) --- > Source: [ValueTronics](https://valuetronics.com/products/n5249b-keysight-network-analyzer-used) > Updated: 2026-06-20