# Agilent 8719ES 50 MHz to 13.5 GHz S-Parameter Vector Network Analyzer (Pre-Owned) # Agilent 8719ES 50 MHz to 13.5 GHz S-Parameter Vector Network Analyzer (Pre-Owned) ## Key Features At A Glance - Microwave vector network analyzers covering 50 MHz to 13.5 GHz (8719), 20 GHz (8720), or 40 GHz (8722) - Available as S-parameter (ES) full two-port models or transmission/reflection (ET) models - System dynamic range to 100 dB on 8719ES/8720ES and 93 dB on 8722ES with 10 Hz IF bandwidth - Built-in synthesized source with ±10 ppm frequency accuracy and 1 Hz resolution - Four display channels with two primary and two auxiliary measurement channels - Optional time-domain (Option 010), TRL calibration with fourth sampler (Option 400), frequency offset for mixer test (Option 089), and high-power configuration (Option 085) - GPIB, RS-232, parallel port, and VGA video output standard for ATE integration and external display A vector network analyzer measures how RF signals transmit through and reflect off components and systems, producing the S-parameters that define an RF device's behavior. Where a spectrum analyzer passively observes signals already present, a network analyzer actively injects a known signal into the device under test and measures both the transmitted and reflected response across frequency. The result is a complete mathematical description of the component's RF performance. The 8720E Family covers three frequency ranges across both S-parameter and transmission/reflection configurations. The 8719ET and 8719ES span 50 MHz to 13.5 GHz, the 8720ET and 8720ES extend coverage to 20 GHz, and the 8722ET and 8722ES reach 40 GHz. The ES models provide full S-parameter measurement with internal forward and reverse switching for two-port calibration, while the ET models are transmission/reflection analyzers using one-port, response, or enhanced-response calibration techniques. ValueTronics International stocks, inspects, and tests precision RF and microwave network analyzers in our 20,000 sq ft facility at 1675 Cambridge Drive, Elgin, Illinois. Every instrument we list is evaluated by our technicians against the manufacturer's published specifications before it ships, so the condition you read on the listing is the condition the unit measured to — not a seller's description or a power-on confirmation. This matters on instruments like the 8720E Family where frequency accuracy, directivity, and dynamic range are the specifications a design engineer is buying. ## Brand Heritage Hewlett-Packard's test and measurement division was spun off as Agilent Technologies in 1999, and the electronic measurement business was further separated as Keysight Technologies in 2014. Instruments originally branded HP, then Agilent, and now supported by Keysight share the same engineering lineage, and the 8720E Family is part of that continuous heritage of microwave network analysis. ## Compare Other Models in This Series The 8720E Family covers three frequency tiers and two test set architectures. The 8719 series spans 50 MHz to 13.5 GHz, the 8720 series extends to 20 GHz, and the 8722 series reaches 40 GHz. Within each frequency tier, the ES suffix designates the full S-parameter model with internal forward and reverse measurement switching, while the ET suffix designates the transmission/reflection model that performs forward measurements with one-port, response, or enhanced-response calibration. All six models share the same display, source synthesis architecture, calibration software, time-domain capability (with Option 010), and connectivity. The differences are bounded to frequency coverage, test set switching architecture, and the calibration types each architecture supports — which translates directly into measurement uncertainty and dynamic range at the frequency extremes. Each pre-owned model below is its own dedicated product page with condition-matched pricing and availability. Specifications, options, and accessories are identical across the family; the page-by-page split reflects the specific frequency range and test set configuration of the unit you are evaluating. The 8720ES covers 50 MHz to 20 GHz with full S-parameter capability — forward and reverse transmission and reflection measurement from a single connection — and supports the full set of two-port and TRL/LRM calibration techniques. With the 85052B 3.5 mm calibration kit and 85131F flexible cables, corrected directivity reaches 48 dB below 2 GHz and 44 dB to 20 GHz, with system dynamic range of 100 dB above 0.84 GHz. Frequency coverage is the primary differentiator across the family. The 8719 series at 13.5 GHz and the 8720 series at 20 GHz both use 3.5 mm precision connectors and share the 85052 series calibration kits. The 8722 series at 40 GHz uses 2.4 mm precision connectors and the 85056 series calibration kits, with maximum output power dropping from +5 dBm on the 3.5 mm models to -5 dBm (0.05 to 20 GHz) and -10 dBm (20 to 40 GHz) on the 8722. The ES versus ET split reflects the test set architecture. ES models contain the internal forward/reverse switching needed for full two-port calibration and reverse S-parameter measurement (S12, S22). ET models perform forward measurements only — S11 and S21 — and rely on one-port or enhanced-response calibration. ET models can also be ordered with Option 004 to add a 55 dB step attenuator extending the power range to -65 dBm minimum. Model Frequency Range Test Port Connector Type **8719ES** 50 MHz to 13.5 GHz 3.5 mm S-Parameter 8719ET 50 MHz to 13.5 GHz 3.5 mm Transmission/Reflection 8720ET 50 MHz to 20 GHz 3.5 mm Transmission/Reflection 8720ES 50 MHz to 20 GHz 3.5 mm S-Parameter 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 Range 0.05 to 13.51 GHz Frequency Accuracy (at 23°C ±3°C) ±10 ppm Frequency Stability (0° to 55°C) ±7.5 ppm Frequency Stability (Option 1D5) ±0.05 ppm Frequency Aging (per year) ±3 ppm (±0.5 ppm with Option 1D5) Frequency Resolution 1 Hz Test Port Connector 3.5 mm precision Test Port Impedance 50 ohms (nominal) Maximum Input Level 10 dBm Damage Level (test port) 30 dBm or 40V dc Power Range 75 dB Maximum Output Power (Standard, Options 085, 400) +5 dBm Maximum Output Power (Option 007) +10 dBm Power Resolution 0.01 dB Level Accuracy (at 5 dB below max) ±2 dB Power Sweep Range 20 dB (30 dB typical) Test Reference Power Level (Standard, Options 085, 400) \-5 dBm Test Reference Power Level (Option 007) 0 dBm System Dynamic Range (0.05 to 0.84 GHz, Standard) 77 dB System Dynamic Range (0.84 to 20 GHz, Standard) 100 dB System Dynamic Range (Option 007) 82 dB (0.05-0.84 GHz); 105 dB (0.84-20 GHz) Trace Noise Magnitude (0.05 to 13.5 GHz) <0.03 dB Trace Noise Phase (0.05 to 13.5 GHz) <0.3° Harmonics at Max Output <-15 dBc Phase Noise (60 kHz from carrier at 2 GHz) <-55 dBc Number of Display Channels 4 Number of Measurement Channels 2 primary, 2 auxiliary S-Parameters S11, S21, S12, S22 IF Bandwidth Range 10 Hz to 6 kHz Measurement Points per Sweep 3, 11, 21, 51, 101, 201, 401, 801, or 1601 Internal Storage 31 instrument states; internal floppy disk (MS-DOS or LIF) GPIB Interface IEEE 488-1978, IEC 625 Additional Interfaces Parallel (Centronics), RS-232, DIN keyboard, VGA video output Line Power 48 to 66 Hz, 115 V nominal (90–132 V) or 230 V nominal (198–264 V), 280 VA max Operating Temperature 0° to 55°C Humidity 5% to 95% at 40°C (noncondensing) Altitude 0 to 4,500 meters (15,000 feet) Net Weight 25 kg (54 lb) Cabinet Dimensions 222 mm H × 425 mm W × 457 mm D (8.75 × 16.75 × 18.0 in) **Important:** Maximum test port input level is +10 dBm with a damage level of +30 dBm or 40 V DC on ES models, and +5 dBm transmission / +10 dBm reflection with a +27 dBm or 0 V DC damage level on ET models.**Important:** A calibration kit and test port return cables appropriate for the connector type (3.5 mm or 2.4 mm) are required to perform vector accuracy enhancement and are sold separately. See Accessories for compatible 8505x/8505x and 8513x series kits and cables.**Important:** Option 085 is not compatible with Option 400.**Important:** Option 085 high-power configuration requires customer-supplied booster amplifier, coupler, and isolators (for output above +30 dBm); bias tees, isolators, and booster amplifiers are not included.**Important:** ESD (electrostatic discharge) must be eliminated by use of static-safe work procedures and an anti-static bench mat (such as Agilent 92175T).Recommended pairing: a calibration kit appropriate to the connector type and frequency range is required for valid S-parameter measurement — 85052 series for 3.5 mm on 8719/8720 models, 85056 series for 2.4 mm on the 8722, with precision (TRL), standard, or economy kits available depending on accuracy requirements. ## 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 - 1120.0 USD - **Vendor:** Agilent Technologies - **Type:** Network Ana - **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 | 700.00 USD | In stock | | NIST Traceable with Full Data | 910.00 USD | In stock | | ISO IEC 17025 Accredited | 1120.00 USD | In stock | ## Images - Agilent 8719ES 50 MHz to 13.5 GHz S-Parameter Vector Network Analyzer (Pre-Owned) --- > Source: [ValueTronics](https://valuetronics.com/products/8719es-agilent-network-analyzer-used) > Updated: 2026-05-30