TESTRO ELECTRONICS LLC
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,Western Union,T/T,MoneyGram |
| Delivery Time | 3-5 days |
| New / Used | Used |
| Frequency Range | 250 kHz – 20 GHz |
| Frequency Resolution | 0.01 Hz standard (1 Hz with Opt 008) |
| SSB Phase Noise | < –110 dBc/Hz @ 10 GHz, 20 kHz offset (typical) |
| Calibrated Output Power | +20 dBm to –110 dBm with Opt 1E1 step attenuator (+13 dBm typical without) |
| Analog Modulation | AM, FM, φM to 1 MHz deviation; Pulse modulation to 50 kHz rate (standard) |
| Brand Name | Keysight/Agilent/HP |
| Model Number | Agilent E8251A |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,Western Union,T/T,MoneyGram | Delivery Time | 3-5 days |
| New / Used | Used | Frequency Range | 250 kHz – 20 GHz |
| Frequency Resolution | 0.01 Hz standard (1 Hz with Opt 008) | SSB Phase Noise | < –110 dBc/Hz @ 10 GHz, 20 kHz offset (typical) |
| Calibrated Output Power | +20 dBm to –110 dBm with Opt 1E1 step attenuator (+13 dBm typical without) | Analog Modulation | AM, FM, φM to 1 MHz deviation; Pulse modulation to 50 kHz rate (standard) |
| Brand Name | Keysight/Agilent/HP | Model Number | Agilent E8251A |
| High Light | PSG-A Signal Generator ，RF Signal Generator 20 GHz ，Signal Generator Agilent E8251A | ||
A pre-owned Agilent E8251A combines 0.01 Hz synthesized accuracy with up to +20 dBm output across 250 kHz–20 GHz, giving R&D and production benches a single-box source for low-noise local oscillators, PA compression, receiver sensitivity and EMC immunity work. Typical phase noise of –110 dBc/Hz keeps mixers honest, while the 110 dB electronic step attenuator (Opt 1E1) delivers a calibrated –110 dBm floor without external pads. Built-in AM/FM/PM plus digital list and step sweeps speed device characterisation, and SCPI/LAN control drops straight into automated test code.
Refurbished units ship ISO-17025-calibrated with current firmware, trimming capital cost and lead-time yet preserving Keysight reliability and future option paths.
Interested in an Agilent E8251A 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.
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.
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.
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.
Global Delivery, Built-In Protection
DHL lanes—arriving at most destinations in just 3–5 days.
Flexible, Modern Payments
Choose traditional T/T or wire transfer, credit card.
Open-Door Assurance
Visit our Shenzhen facility, walk the refurbishment line, and see your equipment on the bench before it leaves our dock.
Company Details
Business Type:
Distributor/Wholesaler,Agent,Exporter
Year Established:
2017
Total Annual:
2,000,000-3,000,000
Employee Number:
30~50
Ecer Certification：
Verified Supplier
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. ... 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. ...
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