The pre-owned Agilent 8665B combines fractional-hertz frequency tuning with a –121 dBc/Hz noise floor, giving engineers a crystal-clean local oscillator or broadband stimulus from 100 kHz up to 6.4 GHz. A built-in electronic attenuator provides a calibrated +13 dBm to –144 dBm span—wide enough for power-amplifier compression, receiver sensitivity and EMC immunity tests without external pads. Standard AM, FM, phase and pulse modulation plus list/step sweeps shorten device characterisation, and full SCPI/GPIB control drops straight into automated benches. Refurbished units can ship ISO-17025-calibrated with current firmware, trimming capital cost and lead-time yet preserving Agilent reliability and long-term serviceability.

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Interested in an Agilent 8665B — 6 GHz Low-Phase-Noise Synthesized Signal Generator or a similar model?

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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, credit card.

6. Open-Door Assurance

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