Offered pre-owned and freshly calibrated, the U3751 brings laboratory-class spectrum analysis to the field with 9 kHz-to-8 GHz coverage, a built-in wideband pre-amplifier and an ultra-low –155 dBm/Hz noise floor. A 100 Hz–30 MHz digital IF path (40 MHz option) speeds ACPR, OBW and spur checks, while ±0.8 dB amplitude accuracy ensures reliable production data. Two-second boot-up, USB/LAN/GPIB control and an optional 6 GHz tracking generator make the 5.6 kg unit ideal for bench, rack or rooftop work. Supplied ready-to-ship with current firmware and traceable certs, it delivers Advantest precision at a fraction of new-instrument cost.
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Interested in an Advantest U3751 — 8 GHz Lightweight Spectrum Analyzer or a similar model?
Looking for other models? Our inventory changes daily—ask for the latest list of spectrum analyzers and RF equipment.
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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Advantest U3751 8 GHz Lightweight RF Spectrum Analyzer CBW 100 Hz – 30 MHz Images
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