The pre-owned R&S FSU50 spans 20 Hz to 50 GHz, eliminating external harmonic mixers for Ka-band and below. A 1 Hz–50 MHz RBW suite, typical –128 dBc/Hz phase-noise floor and –158 dBm DANL (extendable to –168 dBm with the B24 pre-amplifier) uncover low-level spurs, while a +25 dBm TOI preserves dynamic-range headroom for power-device testing. Delivered fully tested, freshly calibrated and running the latest firmware, this unit provides immediate availability and sizeable cost savings over new production hardware without compromising measurement precision, reliability or remote-control automation.

Contact Us for a Fast Quote

Interested in an Used Rohde & Schwarz FSU50 — 50 GHz High-Dynamic-Range 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.

Why Choose TESTRO?

1. Laboratory-Verified Performance

   Every unit ships with an ISO/IEC 17025 calibration certificate bearing the TESTRO Certified seal, so you know the specifications are not just claimed—they’re proven.

2. Total Transparency

   High-resolution teardown photos and a live video test session let you inspect seals, modules, and real-time performance metrics before you pay.

3. Real Warranty, Real People

   One-year machine warranty, with our engineering team standing by on business days to provide remote assistance for any software or hardware issues.

4. Global Delivery, Built-In Protection

   DHL lanes—arriving at most destinations in just 3–5 days.

5. Flexible, Modern Payments

   Choose traditional T/T or wire transfer, swipe a major card, or settle in USDC and other stablecoins—whatever keeps your transaction smooth.

6. Open-Door Assurance

   Visit our Shenzhen facility, walk the refurbishment line, and see your equipment on the bench before it leaves our dock.

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