Agilent Signal Generator E4421B 2 GHz ESG-AP Analog / Vector Signal Generator

The pre-owned Agilent E4421B ESG-AP delivers fully synthesized accuracy from 250 kHz to 2 GHz while offering both high-purity CW and complex analog or vector modulation in a single 3-U chassis. A typical –126 dBc/Hz phase-noise floor keeps mixer and receiver tests honest, and the optional 110 dB step attenuator provides a calibrated +13 dBm to –136 dBm span for PA compression or sensitivity work. Built-in AM/FM/PM plus optional 30 MHz I-Q bandwidth support GSM, Bluetooth and narrow-band IoT waveforms, while LAN/GPIB SCPI control lets the generator slip straight into automated benches.

Refurbished units ship ISO-17025-calibrated with current firmware, trimming capital cost and lead-time yet preserving Keysight reliability and upgrade paths.

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Interested in an Agilent E4421B — 2 GHz ESG-AP Analog/Vector 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.

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Vector Signal Generator E4421B

ESG-AP Vector Signal Generator

Agilent Signal Generator E4421B 2 GHz ESG-AP Analog / Vector Signal Generator Images