The pre-owned R&S FSU3 delivers laboratory-grade spectrum analysis from 20 Hz to 3.6 GHz without the cost or lead-time of current-generation hardware.

A wide 1 Hz–50 MHz RBW suite and a −128 dBc/Hz phase-noise floor keep ACPR, EVM and spur measurements clean, while the optional low-noise pre-amplifier drives sensitivity below −162 dBm for EMI debugging and low-power IoT work. Standard GPIB/RS-232 plus an upgradeable LAN port support automated sweeps, and fast DSP processing accelerates production throughput. Shipped fully tested, freshly calibrated and firmware-current, each unit offers immediate deployment and substantial capital savings without compromising Rohde & Schwarz precision or long-term serviceability.

Contact TESTRO for a Fast Quote

Interested in a Rohde & Schwarz R&S FSU3 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.

TESTRO Advantages

1. Laboratory-Verified Performance – Every unit ships with an ISO/IEC 17025 calibration certificate (TESTRO Certified) tied to its serial number.

2. Full Internal Transparency – High-resolution teardown photos plus a live video test (gain-linearity, noise-floor, spurious response); recordings are stored for the product’s lifetime.

3. Warranty & Technical Support – One-year warranty and weekday remote assistance from the in-house engineering team for both software and hardware issues.

4. Secure, Rapid Shipping – Aviation-grade flight case with triple-layer anti-vibration foam and shock/tilt indicators; priority DHL delivery in 3–5 days to major destinations.

5. Flexible Payment Options – Accepts T/T, wire transfer, credit card.

6. On-Site Inspection Welcome – Customers may visit the Shenzhen warehouse and refurbishment line to view calibration benches, burn-in racks, and inventory.

Founded in 2017 and headquartered in Shenzhen, TESTRO Electronics LLC focuses on the secondary sale and flexible rental of high-end electronic test instruments. The team counts 30 employees and operates a 1,500 m² warehouse and inspection center in Qianhai, Shenzhen.

Industry Background & Resource Sourcing

Over the past two decades, rapid advances in China’s radio-frequency sector have shortened production-line refresh cycles to roughly 3–5 years. Leveraging long-term partnerships with equipment OEMs, research institutes, and calibration labs, TESTRO acquires traceable, well-maintained decommissioned or replacement units. Every instrument undergoes a five-step technical check and third-party calibration before entering stock, ensuring reliable performance data.

Core Services & Delivery Process