A pre-owned Agilent 8720ES combines a synthesized 50 MHz-to-20 GHz source, vector receiver and solid-state switching into one chassis, delivering forward- and reverse-magnitude/phase measurements without external fixtures. Its ≈105 dB dynamic range exposes small ripple and mismatch in filters, cables and amplifiers, while fast sweeps and LAN/SCPI automation keep production throughput high. Optional time-domain and TRL software extend the analyzer’s reach to discontinuity location and on-wafer calibration.
Refurbished units ship ISO-17025-calibrated with current firmware, cutting capital expense and lead-time yet preserving Agilent reliability and long-term serviceability.
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Frequently Asked Questions (FAQ)
1/ Performance Assurance
Every unit is calibrated at an ISO/IEC 17025 accredited laboratory. The original calibration certificate, marked TESTRO Certified, is linked to the unit’s serial number and included in the shipment.
2/ Integrity of Internal Components
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A set of high-resolution teardown photographs showing seals, fasteners, and all critical modules.
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A live video session in which an engineer demonstrates gain-linearity, noise-floor, and spurious-response tests in real time.
All recordings remain in our cloud archive for the life of the product.
3/ Warranty & Technical Support
- One-year transferable warranty.
- Our in-house engineering team is available on business days to provide remote software troubleshooting or hardware-assembly guidance.
4/ International Shipping Protection
- Custom flight case built from aviation-grade plywood with triple-layer anti-vibration foam.
- Shock- and tilt-indicator labels on every crate.
- Preferred carrier: DHL, delivery in 3–5 days to major destinations.
5/ Payment Terms
We accept T/T, wire transfer, credit card.
6/ On-Site Inspection
Customers are welcome to visit our Shenzhen warehouse and refurbishment line to inspect calibration benches, burn-in racks, and inventory.
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20 GHz VNA Vector Network Analyzer S Parameters HP Agilent 8720ES Images
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