Advantest U3751 8 GHz Lightweight RF Spectrum Analyzer CBW 100 Hz – 30 MHz

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.

Contact Us for a Fast Quote

Interested in an Advantest U3751 — 8 GHz Lightweight Spectrum Analyzer or a similar model?

• Drop your WhatsApp number or e-mail on our website and we will:

  
  

  • Send a tailored quotation and any current promotions.

  • Provide extra photos, test data, and full configuration details.

  • Discuss shipping, duties, warranty, and any other specifics you need.

  
  

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

• A set of high-resolution teardown photographs showing seals, fasteners, and all critical modules.

• 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.