Fluke 9550 — 25 ps Ultra-Fast Edge Active Head

The Fluke 9550 active head equips a 9500B oscilloscope calibrator with 25-picosecond edges—fast enough to characterise the 14 GHz front ends of modern sampling scopes. Its precisely filtered, 425–575 mV edges expose vertical-amplifier slew-rate limits and high-frequency aberrations far more sharply than conventional 70 ps or 150 ps heads. Active-Head Technology™ embeds control electronics in the connector, so amplitude and polarity are set directly from the mainframe without recalibration hassles, while the rugged SMA interface maintains traceable performance between services. Supplied fully tested and freshly verified, this pre-owned 9550 head delivers metrology-grade bandwidth verification at a fraction of new-equipment cost.

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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.