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7 Reasons to Buy a Refurbished vs New E5071C Vector Network Analyzer

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How do you ensure precision and reliability in your electrical measurements, especially when the stakes are high? The answer lies in the hands of a Vector Network Analyzer (VNA). 

Imagine optimizing the performance of intricate electronic systems or ensuring the impeccable functionality of today's cutting-edge devices without the pivotal assistance of a vector network analyzer (VNA).

Among the array of VNAs available, the E5071C stands out as a favorite for many professionals, earning its reputation through unmatched precision and dependability. 

Yet, a dilemma often hovers over engineers: Should you invest in a brand-new E5071C, or could a refurbished unit meet your needs just as effectively? 

Let's delve into seven compelling reasons to consider a refurbished E5071C over its newer counterpart.

A Glimpse into the E5071C Vector Network Analyzer

At the forefront of modern electronic testing, the E5071C ENA vector network analyzer stands out, boasting a broad frequency range from 9 kHz to 20 GHz and an enhanced TDR (Time Domain Reflectometry) measurement option. But what makes this analyzer a favorite among electrical engineers?

1. Adaptability for Future Challenges

In a rapidly evolving technological landscape, device characterization requires versatility in measurements, higher frequencies, and more stringent tolerances. The E5071C is not only designed to meet current demands but also to anticipate and overcome future challenges.

2. High Throughput and Yield

For engineers focused on high-volume passive component testing, the E5071C emerges as the ideal choice. Its measurement performance bolsters throughput, optimizing production capabilities. This is especially true when combined with the E5092A multiport test set, allowing engineers to trim down test times with a versatile multiport configuration.

3. Comprehensive Software Suite:

The E5071C network analyzer comes equipped with a range of software tools, tailor-made to assist engineers in analyzing, characterizing, and troubleshooting their designs across varied measurement scenarios. 

With tools like wireless power transfer analysis, time domain analysis, and the unique frequency offset mode, complex measurements become considerably more manageable.

  • E5071C-010 Time Domain Analysis: Engineers can observe transmission and reflection responses in the time domain, which proves invaluable for tuning filters, gating out fixtures and cables, and characterizing transmission lines.
  • E5071C-008 Frequency Offset Mode: This feature allows engineers to set the receivers to a different frequency than the sources. It's an essential tool for making harmonic distortion measurements and assessing mixer/frequency converter measurements.
  • E5071C-TDR Enhanced Time Domain Analysis: Aimed at comprehensive high-speed serial interconnect analysis, this feature provides eye diagram tests, advanced time domain measurements, and an intuitive user interface.

A network analyzer is more than just an instrument; it's a versatile solution for engineers, addressing a myriad of testing and analysis requirements in today's complex engineering domain.

VNA Comparison Table

Frequency Range9 kHz to 20 GHz44 GHz53 GHz18 GHz3 GHz
Dynamic Range123 dB146 dB140 dB117 dB120 dB
Measurement SpeedN/A3 ms2 ms9 ms9 ms
Number of Ports2 or 4 ports2 or 4 ports2 ports2 ports2 ports
Output Power Range10 dBm17 dBm10 dBm0 dBm10 dBm
Noise Floor–131 dBm/Hz-137 dBm/Hz-137 dBm/Hz-127 dBm/Hz-110 dBm
Measurement Modesfrequency offset modeS-Parameters, Noise Figure, Modulation DistortionSignal Integrity, Balance Measurements, S-ParametersS-Parameters, Return Loss, Time Domain, Insertion Loss/GainS-Parameters, Distance-To-Fault, Return Loss, Insertion Loss/Gain, LF Circuits
Software & Analysis ToolsWireless power transfer analysis, frequency offset mode, time domain analysis, and moreIntegrated modulation distortion, modulation distortion analysis, spectrum analysis, noise figure measurements, pulsed-RF testsAdvanced time domain analysis, spectrum analysis, pulsed-RF measurementsWireless power transfer analysis, frequency offset mode, time domain analysiswireless power transfer analysis, time domain analysis


Discover the Exceptional Value: Refurbished E5071C Vector Network Analyzer from Keysight

  • Like-new Condition
  • Updated Firmware
  • Full Calibration
  • New Accessories
  • Like-new Warranty
  • Customization possible

Learn more

  • Savings of up to 90%
  • Working Condition
  • Calibrated or Tested
  • 30-Day Right-of-Return
  • No Customization
  • Shipping to limited countries

Learn more

7 Compelling Reasons to Opt for Refurbished Over New

Making a decision between a brand-new E5071C vector network analyzer and a refurbished model? Before you decide, consider these seven compelling reasons that highlight the advantages of choosing a refurbished unit:

  1. Significant cost savings
  2. Comprehensive long-term value
  3. Proven performance and reliability
  4. Keysight's rigorous refurbishment process
  5. Eco-friendly engineering choice
  6. Quick availability and expedited delivery
  7. Extended warranty and customer support

Now, let's dive deeper into each reason to provide a clearer perspective.

Significant Cost Savings

Choosing a refurbished vector network analyzer over a brand-new one can yield substantial financial benefits. Here's how:

  • Initial purchase price: The most immediate and noticeable benefit is the reduced upfront cost. A refurbished unit often comes at a fraction of the price of a new device, offering you substantial savings right out of the gate.
  • Depreciation rate: Electronics and high-tech equipment, like many assets, depreciate over time. By opting for a refurbished unit, you're essentially buying an item that has already undergone some of its steepest depreciation. This means that if you ever decide to resell or upgrade, the relative value loss you experience will likely be less than with a brand-new purchase.
  • Budget allocation: The savings accrued from purchasing a refurbished unit can be redirected to other essential areas of your project or facility. Whether it's investing in additional tools, software, or training, these funds can serve as a boon to your overall operations.
  • Cost-efficient upgrades: For businesses or individuals that need to equip multiple stations or regularly update their equipment, going the refurbished route can lead to exponential savings. This is especially true if you're looking to buy in bulk or update your gear frequently.
  • Reduced financial risk: With the lower investment required for a refurbished unit, the financial risk associated is also diminished. In the rare event of equipment failure or a change in project requirements, the financial setback is minimized compared to the potential loss on a brand-new purchase.

Comprehensive Long-Term Value

While the allure of initial savings can be enticing when considering a refurbished VNA, it's crucial to see the bigger picture — the total cost of ownership (TCO). The comprehensive long-term value of a refurbished E5071C VNA extends far beyond its purchase price:

  • Lower maintenance costs: Refurbished units undergo a rigorous inspection and refurbishment process, often addressing and rectifying wear and tear or any other issues from previous use. This meticulous attention to detail can result in a unit that requires less frequent maintenance, saving you on costs associated with upkeep over time.
  • Reduced repair frequency: A refurbished VNA that has been restored by experts, especially by established entities like Keysight, tends to be more reliable. The fact that it's already been tested in real-world scenarios, and then refurbished to its optimal state, means potential weaknesses or defects have been addressed. As a result, you may find that a refurbished VNA requires fewer repairs compared to some newer units that have yet to be battle-tested.
  • Value beyond price: It's essential to remember that value isn't solely about money. Time, for instance, is invaluable. With reduced maintenance and repair times, you're likely to experience fewer disruptions, ensuring your operations run smoother and more efficiently. This can translate to faster project completions, fewer delays, and a more streamlined workflow.

The comprehensive long-term value of a refurbished VNA isn't just about its attractive price tag. It's a culmination of various financial and operational benefits that, when considered as a whole, make a compelling case for choosing refurbished over new.

Proven Performance and Reliability

Refurbished VNAs, such as the E5071C, come with an undeniable advantage: they've been proven in real-world conditions.

  • Real-world experience: These units have faced and functioned in practical scenarios, ensuring their resilience and adaptability.
  • Problem identification & rectification: Prior usage means any hitches or glitches have been identified. During refurbishment, these are meticulously fixed, making the VNA as reliable as a new one, if not more so.
  • Consistent measurements: Refurbished units are recalibrated, ensuring accuracy and consistency in results, a testament to their reliability.

A refurbished VNA is a testament to tried and true performance. It's not just refurbished; it's rejuvenated, ready to deliver with proven reliability.

Keysight's Rigorous Refurbishment Process

Keysight's refurbishment process for E5071C units stands out due to its meticulous attention to detail. This ensures that refurbished equipment doesn't just perform like new but often exceeds expectations. Here's a breakdown of the process:

Check & Preparation

  1. Used unit arrives: Every used unit first arrives at Keysight’s primary manufacturing site in Penang, Malaysia.
  2. Condition check: Keysight professionals conduct a thorough inspection of the unit to assess its overall condition.
  3. Comprehensive cleaning: Each unit undergoes an intensive cleaning using vacuum-based technology. Any part that remains uncleaned gets replaced.

Configure & Update

  1. Update to latest firmware and software: Once the unit's performance is verified, it gets updated to the latest compatible firmware and software.
  2. Customization process: Depending on customer requirements, hardware options, applications, or software options are either added or removed.
  3. Calibration and safety tests: Each unit undergoes rigorous calibration and safety tests to ensure optimal performance.

Accessories and Final Check

  1. Original manuals and accessories: Refurbished units come equipped with brand-new accessories and manuals, identical to what accompanies a new Keysight instrument.
  2. Final 101-point inspection: Before dispatch, each instrument undergoes a performance verification along with a comprehensive 101-point quality check.
  3. Standard like-new warranty: Refurbished units receive the same warranty as brand-new Keysight instruments, underscoring the confidence in their quality and performance.

Shipped to Customer

  1. Unit packed and shipped to customer: The refurbished instrument, accompanied by its accessories, is meticulously packed and shipped, ensuring it reaches the customer in pristine condition.

The precision with which Keysight approaches its refurbishment process guarantees that you're getting a unit that aligns with the brand's esteemed quality standards.

Eco-Friendly Engineering Choice

Choosing refurbished equipment doesn't just make financial sense—it's also an environmentally conscious decision. Here's how opting for refurbished units contributes to a greener planet:

  • Reduction of e-waste: One of the most pressing environmental challenges today is electronic waste (e-waste). By purchasing refurbished equipment, you're directly reducing the amount of e-waste generated. Instead of discarding a unit that still has functional potential, it gets a new lease on life, thereby preventing premature disposal.
  • Conservation of resources: Manufacturing new electronic devices requires a significant amount of raw materials and energy. By opting for a refurbished unit, you're promoting the efficient use of these resources, as it diminishes the demand for new products and the associated manufacturing burden.
  • Decreased carbon footprint: The process of manufacturing new devices releases considerable amounts of CO2 and other greenhouse gases. Using refurbished equipment reduces the need for this energy-intensive manufacturing, ultimately leading to fewer emissions.
  • Minimized pollution: Apart from greenhouse gases, the production of new electronics often results in the release of harmful chemicals and pollutants. Choosing refurbished equipment means less demand for new production and, subsequently, reduced environmental pollution.

Opting for refurbished equipment is a step towards sustainable engineering. It not only aligns with eco-friendly practices but also sets a positive precedent for the industry, advocating for a more responsible approach to equipment utilization and e-waste management.

Quick Availability and Expedited Delivery

Refurbished equipment often offers two major advantages over new units:

  • Immediate availability: Refurbished units are typically ready in stock, eliminating the manufacturing lead times associated with brand-new products.
  • Faster shipping: Given that refurbished units have undergone checks and calibrations already, they're often shipped out more promptly, ensuring you receive the equipment without prolonged waits.

Choosing a refurbished unit can mean getting your desired equipment swiftly, reducing downtime and accelerating project timelines.

Extended Warranty and Customer Support

Choosing refurbished units from Keysight offers not just a trustworthy piece of equipment, but also a comprehensive range of post-purchase advantages. The focus on after-sales support is evident in the offerings provided:

Keysight extended warranty: As the original equipment manufacturer (OEM), Keysight stands behind the certified quality of their used equipment. This confidence stems from their ability to repair and maintain their products anywhere, anytime. This is precisely why Keysight offers extended warranty for most of their used equipment, ensuring that customers get a risk-free experience.

Benefits of Extending Your Warranty

  • Lower costs: Enjoy up to 70% reduced costs in comparison to a single unplanned repair.
  • Hassle-free process: Eliminate administrative burdens and the need for additional purchase orders.
  • Minimal downtime: With expedited services, downtime is notably less than per-incident repairs.
  • OEM quality: Benefit from genuine Keysight parts, provided by the very people who manufactured the equipment.
  • Global coverage: The warranty coverage is transferable, ensuring protection anywhere in the world.
  • Predictable expenses: Keep your budget in check with no unforeseen expenses and protection against inflation.

Delving Deeper into KeysightCare:

KeysightCare is not merely an extended warranty—it's a comprehensive package of OEM services that traditionally cater to new equipment buyers.

  • Priority response: With KeysightCare, expect prompt response and repair turnaround times, ensuring minimal disruption to your projects and operations.
  • Tech support: KeysightCare provides a broad spectrum of support, from self-help tutorials and discussion forums to personalized advice from specialists.

Keysight offers a variety of plans tailored to individual needs, with features including rapid technical response times, instrument repair durations, calibration services, access to a knowledge center, a user-friendly web portal, and software notifications. 

Among these, many customers gravitate towards the KeysightCare Assured plan, given its all-encompassing warranty, swift response and repair times, and comprehensive technical support—all offered at an unbeatable price.

In essence, when you invest in a refurbished unit from Keysight, you're not only securing top-tier equipment but also aligning with a brand committed to maximizing your equipment's utility and ensuring its longevity.

Discover Keysight's Range of Certified Refurbished VNAs

  • Like-new Condition
  • Updated Firmware
  • Full Calibration
  • New Accessories
  • Like-new Warranty
  • Customization possible

Learn more

  • Savings of up to 90%
  • Working Condition
  • Calibrated or Tested
  • 30-Day Right-of-Return
  • No Customization
  • Shipping to limited countries

Learn more

What to Look for When Buying a Refurbished E5071C VNA

Investing in a refurbished VNA is a prudent decision, both financially and environmentally. However, to ensure that you're getting the best value and performance, it's essential to know what to prioritize during the purchase process. 

Key aspects like certification and warranty can provide insights into the unit's quality, reliability, and the support you can expect post-purchase.

Certification and Warranty Details

When considering a refurbished E5071C VNA, it's paramount to ensure the product's quality and reliability. A certified product backed by a comprehensive warranty offers peace of mind. 

Here's a breakdown of essential certifications and warranty details to prioritize:

Certification Checklist:

  • OEM certification: Ensure the refurbished unit has a certification from the Original Equipment Manufacturer (in this case, Keysight).
  • Quality assurance: Look for quality seals or certifications indicating that the VNA underwent rigorous testing.
  • Calibration certificates: Ensure the unit comes with updated calibration certificates, validating its precision.

Warranty Checklist:

  • Warranty duration: Identify how long the warranty lasts. Longer durations often signal greater confidence in the product.
  • Coverage details: Determine what the warranty covers—be it parts, labor, or both.
  • Global transferability: Check if the warranty is valid worldwide, especially if you might relocate or require service in different regions.
  • Response and repair times: The warranty should specify turnaround times for issues, ensuring minimal downtime.
  • Inclusion of technical support: Ascertain if the warranty package includes technical support for troubleshooting or guidance.

By focusing on these critical certification and warranty details, you'll be well-equipped to make an informed decision, ensuring the longevity and reliability of your refurbished VNA.

Accessories and Calibration

When investing in a refurbished VNA, the accessories that accompany the unit and its calibration status are paramount. These elements not only guarantee the device's optimum performance but also its adaptability and longevity in varied testing scenarios.

  • Accessories: An essential consideration is ensuring the VNA comes with all necessary accessories. These components play a crucial role in facilitating specific tests, ensuring precise measurements, and extending the equipment's functionality.
  • Calibration: Regular calibration is critical to maintain the VNA's accuracy and reliability over time. With the rapidly evolving nature of electrical engineering, having a recently calibrated device ensures your measurements remain relevant and trustworthy.

Keysight Calibration Services

  • Precise calibration: Keysight emphasizes calibrating every specification and every option during each session, guaranteeing the precision of your VNA.
  • One-stop and multi-brand services: Keysight provides calibration services for its products and other brands, allowing for consistent performance checks at regular intervals of 6, 12, 24, or 36 months.
  • Standards lab & antenna services: Ensuring the highest accuracy, Keysight compares devices to primary or reference standards. For antennas, the service guarantees standards-compliant measurements, pivotal for radios to radar and EMI/EMC tests.
  • ISO/IEC 17025 accreditation: Meeting both global and local requirements, Keysight boasts affiliations with a range of local accreditation bodies including JCSS, CNAS, UKAS, ANAB, and Poverka.

Delivery and Service Options:

  • Return-to-Keysight: Count on a quick and predictable turnaround time when you send your equipment to Keysight.
  • Local pick-up: In specific countries, there's the convenience of courier-based pickup for calibration services.
  • Onsite calibration: Minimize downtime significantly with onsite services tailored to your schedule, or even have an Onsite Resident Professional to manage calibrations and repairs at your location.

Ensuring that your refurbished VNA comes with the requisite accessories and has undergone a recent calibration by a reputable service like Keysight guarantees both its efficiency and long-term reliability.

Technical Support and Documentation

When procuring a refurbished VNA, the machine itself is just one facet of the purchase. Equally critical is the post-purchase framework, specifically in the realms of technical support and thorough documentation. Here's why:

Technical Support

No equipment is immune to occasional glitches or user queries. Whether it's an unexpected error, a calibration conundrum, or a procedural question, having robust technical support is invaluable. This support ensures:

  • Quick troubleshooting: Minimize downtime by swiftly addressing and rectifying any issues that arise.
  • Ongoing training: Access to experts can aid in broadening your understanding of the equipment, allowing you to utilize it more effectively.


Comprehensive product documentation acts as a roadmap to understanding and maximizing the potential of your VNA. 

When you purchase a used VNA, ensure the availability of the following:

  • User manual: This primary document provides a step-by-step guide on using the E5071C VNA, detailing its features, operations, and safety precautions.
  • Calibration certificates: Proof of recent calibration and the calibration history showcases the unit's adherence to industry standards and its measurement accuracy.
  • Technical specifications: These sheets provide a deep dive into the VNA's capabilities, helping you align them with your project requirements.
  • Software and firmware guides: If your unit integrates software or firmware components, having guides for them aids in setup, updates, and troubleshooting.

When considering a refurbished VNA, look beyond the equipment's core. Ensure you're backed by solid technical support and have access to complete product documentation. These factors not only facilitate the seamless integration of the unit into your operations, but also enhance its long-term value and effectiveness.

Debunking Common Misconceptions about Refurbished Equipment

While refurbished equipment comes with numerous advantages, it is frequently surrounded by myths and misconceptions. It is crucial to debunk these unfounded beliefs in order to make well-informed decisions. 

Let's dive into some of the most prevalent myths about refurbished equipment, particularly in the context of the VNA, and shed light on the reality.

Refurbished Means Lower QualityKeysight refurbished tools undergo rigorous testing and quality checks, making them as reliable as new units.
Limited Support for Refurbished UnitsKeysight provides extensive support for its refurbished products, mirroring that offered for new products.
Refurbished Units Have a Shorter LifespanWith proper care, refurbishment, and maintenance, refurbished units can often match the lifespan of their new counterparts.


Myth: Refurbished Means Lower Quality

This is perhaps the most prevalent myth. However, when you're dealing with a company like Keysight, quality remains paramount regardless of whether the equipment is new or refurbished. Keysight ensures:

  • Rigorous testing: Every refurbished VNA undergoes meticulous testing, ensuring it performs at par with brand-new units.
  • OEM standards: The refurbishment process aligns with Original Equipment Manufacturer (OEM) standards, ensuring quality and reliability.
  • Factory refurbishment: Units refurbished at Keysight's main factories benefit from the same expertise and resources that produce their new equipment.

Myth: Limited Support for Refurbished Units

Another misconception is that refurbished units come with compromised support. This couldn't be further from the truth, especially with Keysight. Here's what you can expect:

  • Extended warranties: Many of Keysight's refurbished units come with warranties that have the same coverage as new products.
  • Technical support: Access to experts, tutorials, and discussion forums ensures users have ample resources post-purchase.
  • Comprehensive documentation: From user manuals to calibration certificates, refurbished unit owners receive thorough documentation to optimize their equipment usage.

Myth: Refurbished Units Have a Shorter Lifespan

The belief that refurbished equipment has a limited lifespan is often unfounded. 

  • Life cycle: Both new and refurbished VNAs, when maintained correctly, have impressive lifespans. Proper care and regular calibrations ensure long-term performance.
  • Keysight's assurance: Thanks to the meticulous refurbishment process, Keysight's units are prepped for longevity, offering engineers reliability for years to come.

Conclusion: Making an Informed Choice with the E5071C VNA

Choosing the right VNA is pivotal for any engineer or professional working in the RF and microwave industries. When considering a refurbished unit, it's vital to understand its benefits, especially when it's a piece of cutting-edge equipment like the E5071C VNA from Keysight. 

Here is a quick recap of the benefits of buying a refurbished VNA from Keysight. 

  1. Significant cost savings: Acquire top-tier equipment without the hefty price tag of a brand-new unit.
  2. Comprehensive long-term value: Not just initial savings but long-term financial benefits and potential resale value.
  3. Proven performance and reliability: Refurbished doesn't mean second-best. These units have proven their worth in real-world scenarios.
  4. Keysight's rigorous refurbishment process: Ensures every unit performs at par with brand-new ones.
  5. Eco-friendly engineering choice: Contribute to a sustainable future by reducing e-waste.
  6. Quick availability and expedited delivery: Get your hands on the equipment faster than waiting for a brand-new unit.
  7. Extended warranty and customer support: Enjoy top-notch after-sales service and peace of mind with the support from Keysight.

Harness the power of the E5071C VNA without compromising on quality or budget with Keysight's refurbished options. 

Remember, when it's a trusted brand like Keysight at the helm, opting for a refurbished unit isn't a gamble—it's a smart, informed choice. 

Whether you're a seasoned professional or just starting, Keysight's refurbished E5071C VNA ensures you have the best tools in hand, allowing you to push the boundaries of innovation further.

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