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 | 9 kHz – 3.0 GHz |
| Analysis Bandwidth | 1 kHz – 5 MHz standard; down to 100 Hz with Option 1DR |
| Phase Noise | –104 dBc/Hz @ 30 kHz offset (1 GHz carrier, typical) |
| DANL (Preamp On) | –158 dBm/Hz typical @ 2.2 – 3 GHz, preamp on |
| Size / Weight | 416 × 222 × 409 mm, 15.5 kg net |
| Brand Name | Keysight/Agilent/HP |
| Model Number | Agilent E4403B |
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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 | 9 kHz – 3.0 GHz |
| Analysis Bandwidth | 1 kHz – 5 MHz standard; down to 100 Hz with Option 1DR | Phase Noise | –104 dBc/Hz @ 30 kHz offset (1 GHz carrier, typical) |
| DANL (Preamp On) | –158 dBm/Hz typical @ 2.2 – 3 GHz, preamp on | Size / Weight | 416 × 222 × 409 mm, 15.5 kg net |
| Brand Name | Keysight/Agilent/HP | Model Number | Agilent E4403B |
| High Light | Agilent E4403B 3 GHz ，Portable ESA-L Spectrum Analyzer ，3 GHz RF Spectrum Analyzer | ||
The pre-owned Agilent E4403B delivers cost-effective RF spectrum analysis from 9 kHz to 3 GHz in a rugged, luggable chassis. Standard 1 kHz–5 MHz RBWs—narrowable to 100 Hz with Option 1DR—combine with a –104 dBc/Hz phase-noise floor to resolve closely spaced carriers, while the internal pre-amplifier (Option 1DS) lowers the noise floor to –158 dBm/Hz, revealing weak emissions without external LNAs. SCPI/IVI control, 1.1 dB amplitude accuracy, and upgradeable tracking-generator and measurement personalities make it a reliable production-line or service-bench workhorse.
Buying refurbished slashes capital expense and lead-time; units can ship ISO-17025-calibrated with verified firmware, preserving Agilent precision and long-term serviceability at a fraction of new-instrument cost.
Interested in an Agilent E4403Bor 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.
Every unit is calibrated at an ISO/IEC 17025 accredited laboratory. The original calibration certificate, marked TESTRO Certified, is linked to the unit’s serial number and included in the shipment.
A set of high-resolution teardown photographs showing seals, fasteners, and all critical modules.
A live video session in which an engineer demonstrates gain-linearity, noise-floor, and spurious-response tests in real time.
All recordings remain in our cloud archive for the life of the product.
We accept T/T, wire transfer, credit card.
Customers are welcome to visit our Shenzhen warehouse and refurbishment line to inspect calibration benches, burn-in racks, and inventory.
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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