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The PSA Series is a family of high-performance spectrum analyzers offering spectrum analysis up to 50 GHz, combining one-button measurements with a versatile feature set and a leading-edge combination of flexibility, speed, accuracy, and dynamic range. The series spans five models — the E4443A (3 Hz to 6.7 GHz), E4445A (3 Hz to 13.2 GHz), E4440A (3 Hz to 26.5 GHz), E4446A (3 Hz to 44 GHz), and E4448A (3 Hz to 50 GHz) — sharing a common architecture and differing primarily in maximum frequency coverage.
The PSA Series addresses high-performance applications ranging from millimeter wave and phase noise measurements to spur searches and modulation analysis. It is positioned for R&D and manufacturing engineers working in cellular and emerging wireless communications, aerospace, and defense, where comprehensive spectrum analysis across a wide frequency span is required.
ValueTronics stocks test and measurement equipment directly from its own 20,000 sq ft secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every pre-owned unit is inspected and functionally verified in-house before it ships, while new units ship factory-sealed exactly as received from the manufacturer.
Agilent Technologies was spun out of Hewlett-Packard in 1999, carrying forward HP's test and measurement heritage. In 2014, Agilent's electronic measurement business was transferred to a newly formed company, Keysight Technologies. Instruments branded Agilent therefore reflect this lineage of corporate name changes within the same product heritage.
The PSA Series comprises five spectrum analyzer models built on a shared architecture, distinguished principally by their maximum frequency coverage. All five begin at 3 Hz and extend to model-specific upper limits: 6.7 GHz (E4443A), 13.2 GHz (E4445A), 26.5 GHz (E4440A), 44 GHz (E4446A), and 50 GHz (E4448A).
Across the family, the analyzers share the same one-button measurement approach, Power Suite measurement set, attenuation and resolution-bandwidth ranges, trace detectors, and remote interfaces. The model you choose is driven chiefly by the highest frequency your application needs to reach.
Each model below links to its own dedicated product page with pre-owned pricing matched to that specific unit. Select the model whose frequency coverage fits your application, then review its page for current availability and condition details.
The E4440A covers 3 Hz to 26.5 GHz, with DC-coupled operation across that full span and AC-coupled operation from 10 MHz upward. Its RF input uses a Type-N female 50 Ω connector (an APC 3.5 male input is available via Option BAB), placing it among the family members that share Type-N inputs rather than the 2.4 mm inputs used on the highest-frequency models.
The clearest difference among the models is frequency reach, stepping from 6.7 GHz on the E4443A up to 50 GHz on the E4448A, as shown in the comparison table. Front-panel RF connectors also differ by model: the E4443A, E4445A, and E4440A use Type-N female 50 Ω inputs, while the E4446A and E4448A use 2.4 mm male 50 Ω inputs suited to their higher frequencies.
Other model-dependent attributes include displayed average noise level and frequency response figures, which are specified separately for the E4443A/E4445A/E4440A group and the E4446A/E4448A group, and nominal net weight (23 kg for the lower-frequency group versus 24 kg for the two highest-frequency models). AC-coupled input handling of ±100 Vdc is specified for the E4443A, E4445A, and E4440A only. See the comparison table for the per-model values.
| Model | Frequency Range | RF Input Connector | DANL (10 MHz–1.2 GHz) |
|---|---|---|---|
| E4446A | 3 Hz to 44 GHz | 2.4 mm male, 50 Ω | –154 dBm |
| E4443A | 3 Hz to 6.7 GHz | Type-N female, 50 Ω | –155 dBm |
| E4445A | 3 Hz to 13.2 GHz | Type-N female, 50 Ω | –155 dBm |
| E4440A | 3 Hz to 26.5 GHz | Type-N female, 50 Ω (APC 3.5 male with Option E4440A-BAB) | –155 dBm |
Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.
| Specification | Value |
|---|---|
| Frequency Range | |
| DC coupled | 3 Hz to 44 GHz |
| Displayed Average Noise Level (DANL) — input terminated, 0 dB attenuation, normalized to 1 Hz RBW, 20 to 30 °C | |
| 3 Hz to 1 kHz | –110 dBm nominal |
| 1 kHz to 10 kHz | –130 dBm nominal |
| 10 kHz to 100 kHz | –140 dBm |
| 100 kHz to 1 MHz | –145 dBm |
| 1 MHz to 10 MHz | –150 dBm |
| 10 MHz to 1.2 GHz | –154 dBm |
| 1.2 GHz to 2.2 GHz | –153 dBm |
| 2.2 GHz to 3 GHz | –152 dBm |
| 3 GHz to 6.6 GHz | –151 dBm |
| 6.6 GHz to 13.2 GHz | –146 dBm |
| 13.2 GHz to 20 GHz | –145 dBm |
| 20 GHz to 22.5 GHz | –143 dBm |
| 22.5 GHz to 26.8 GHz | –140 dBm |
| 26.8 GHz to 31.15 GHz | –142 dBm |
| 31.15 GHz to 36 GHz | –134 dBm |
| 36 GHz to 38 GHz | –129 dBm |
| 38 GHz to 44 GHz | –131 dBm |
| DANL, Preamp On (Option E4446A-1DS) | |
| 100 kHz to 200 kHz | –160 dBm |
| 200 kHz to 500 kHz | –163 dBm |
| 500 kHz to 10 MHz | –164 dBm |
| 1 MHz to 10 MHz | –167 dBm |
| 10 MHz to 1.2 GHz | –167 dBm |
| 1.2 GHz to 2.2 GHz | –166 dBm |
| 2.2 GHz to 3.0 GHz | –164 dBm |
| Frequency Response (10 dB input attenuation, 20 to 30 °C) | |
| 3 Hz to 3 GHz | ±0.38 dB (±0.15 dB typical) |
| 3 GHz to 6.6 GHz | ±1.50 dB (±0.6 dB typical) |
| 6.6 GHz to 22 GHz | ±2.00 dB (±1.2 dB typical) |
| 22 GHz to 26.8 GHz | ±2.50 dB (±1.3 dB typical) |
| 26.4 GHz to 31.15 GHz | ±1.75 dB (±0.6 dB typical) |
| 31.15 GHz to 50 GHz | ±2.50 dB (±1.0 dB typical) |
| Input Attenuation Switching Uncertainty (≥ 2 dB) | |
| 13.2 GHz to 26.5 GHz | ±0.7 dB nominal |
| 26.5 GHz to 50 GHz | ±1.0 dB nominal |
| Input VSWR (≥ 8 dB input attenuation) | |
| 18 GHz to 26.5 GHz | < 1.9:1 nominal |
| 26.5 GHz to 50 GHz | < 1.6:1 nominal |
| 1 dB Gain Compression — additional band | |
| 26.5 GHz to 50 GHz | 0 dBm nominal |
| Second Harmonic Distortion (SHI) | |
| 10 MHz to 400 MHz (–40 dBm mixer level) | –82 dBc; SHI +42 dBm |
| 400 MHz to 1.25 GHz (–40 dBm mixer level) | –91 dBc; SHI +51 dBm |
| 1.25 GHz to 1.5 GHz (–40 dBm mixer level) | –81 dBc; SHI +41 dBm |
| 1.5 GHz to 2.0 GHz (–10 dBm mixer level) | –90 dBc; SHI +80 dBm |
| 2.0 GHz to 3.25 GHz (–10 dBm mixer level) | –94 dBc; SHI +84 dBm |
| 3.25 GHz to 13.25 GHz (–10 dBm mixer level) | –96 dBc; SHI +86 dBm |
| 13.25 GHz to 25 GHz (–10 dBm mixer level) | –100 dBc nominal; SHI +90 dBm nominal |
| Third-Order Intermodulation Distortion (TOI) (two –30 dBm tones, separation > 15 kHz) | |
| 10 MHz to 100 MHz | –90 dBc; TOI +15 dBm (+20 typical) |
| 100 MHz to 400 MHz | –92 dBc; TOI +16 dBm (+21 typical) |
| 400 MHz to 1.7 GHz | –94 dBc; TOI +17 dBm (+20 typical) |
| 1.7 GHz to 3.0 GHz | –96 dBc; TOI +18 dBm (+21 typical) |
| 3.0 GHz to 6.0 GHz | –92 dBc; TOI +16 dBm (+21 typical) |
| 6.0 GHz to 16 GHz | –84 dBc; TOI +12 dBm (+15 typical) |
| 16.0 GHz to 26.5 GHz | –84 dBc; TOI +12 dBm (+16 typical) |
| 26.5 GHz to 50 GHz | –85 dBc nominal; TOI +12.5 dBm nominal |
| Residual Responses (input terminated, 0 dB attenuation) | |
| 200 kHz to 6.6 GHz | –100 dBm |
| 6.6 GHz to 26.8 GHz | –100 dBm nominal |
| 26.8 GHz to 50 GHz | –90 dBm nominal |
| Weight (without options) | |
| Net | 24 kg (53 lbs) nominal |
| Shipping | 34 kg (76 lbs) nominal |
| RF Input Connector | |
| Connector | 2.4 mm male, 50 Ω |
Important: Maximum safe input level: +30 dBm (1 W) average total power; +50 dBm (100 W) peak pulse (<10 µs pulse width, <1% duty cycle, input attenuation ≥30 dB).
Important: This data sheet is a summary of the complete specifications and conditions, which are available in the PSA Series Spectrum Analyzers Specification Guide (www.agilent.com/find/psa).
Important: The analyzer will meet its specifications when stored a minimum of two hours within the operating temperature range and turned on for at least 30 minutes with Auto Align On selected; the instrument is within its one-year calibration cycle; Align All Now has been performed within the past 24 hours or when the temperature changes 3 °C; the instrument is under auto couple control (except Auto Sweep Time = Accy); and DC coupling is applied if center frequency is < 20 MHz.
This pre-owned unit is inspected and functionally verified in-house before it ships and is backed by our pre-owned warranty. To confirm its exact condition, firmware revision, installed options, or included accessories for your application before ordering, contact our Test Architects.
ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
Agilent
Condition
Pre-Owned
Manufacturer
Agilent
Spec_ana_freq
3 Hz to 44 GHz
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