The Keysight N8973B is a high-performance noise figure analyzer designed for accurate and repeatable noise figure measurements across a frequency range of 10 MHz to 3.6 GHz. This instrument is engineered to support a wide array of applications, including but not limited to, amplifier testing, wireless communication systems, and component characterization. Its multi-touch interface allows for intuitive operation with gestures such as pinch, stretch, and drag, facilitating swift navigation without screen changes. The N8973B integrates spectrum analyzer and IQ analyzer (basic) modes, extending its utility beyond noise figure analysis to provide further device characterization capabilities.
### Technical Specifications
**Frequency Characteristics:**
* **Frequency Range:** 10 MHz to 3.6 GHz
* **Minimum Frequency:** 10 MHz
* **Maximum Frequency:** 3.6 GHz
**Measurement Capabilities:**
* **Measurement Functions:** Noise Figure, Noise Factor, Y-Factor, Gain
* **Noise Figure Measurement Range:** 0 to 35 dB (0 to 30 dB specified in one source)
* **Gain Measurement Range:** -20 to 40 dB
* **Analysis Bandwidth:** Up to 25 MHz (in IQ analyzer mode)
**Performance Metrics:**
* **Gain Uncertainty:** ±0.15 dB
* **Instrument Noise Figure:** 8 to 10 dB
* **Instrument Uncertainty:** ±0.02 dB using a 4-6 dB ENR Noise Source (±0.02 to ±0.03 dB specified in another source)
* **Measurement Speed:** 18.3 ms/measurement (0.5 seconds per point specified in one source)
* **Displayed Average Noise Level (DANL):** -163 to -160 dBm
**Electrical Characteristics:**
* **Measurement Bandwidth:** 1 Hz to 3 MHz (in E24 series increments), 4 MHz, 5 MHz, 6 MHz, 8 MHz (1 Hz to 8 MHz specified in another source)
* **Noise Source Drive Voltage:** 28 V
* **Power Consumption:** 350 W
* **Power Requirements:** 100 to 240 V
**Interfaces and Connectors:**
* **Input Connector:** N-type (f)
* **Standard Interfaces:** USB, LAN, GPIB
**Physical Characteristics:**
* **Dimensions:** 14.5 x 16.8 x 7 inches (L x W x H) (427 mm x 177 mm x 411 mm specified in another source)
* **Weight:** 18 Kg (9.5 kg specified in another source)
* **Operating Temperature:** 0 to 55 °C
* **Storage Temperature:** -40 to 70 °C
**Compatibility and System Integration:**
* **SNS Series Noise Source Compatibility:** N4000A, N4001A, N4002A
* **Included Preamplifier:** U7227A 10 MHz to 4 GHz External USB Preamplifier
* **External LO Control:** The instrument can control an external LO via LAN, USB, or GPIB for frequency translating devices.
**Included Options/Features:**
* **Built-in Standard Options:** P03 (3 GHz internal Preamplifier), PFR (Precision Frequency Reference), FSA (Fine Step Attenuator), NFE (Noise Floor Extensions), and B25 (25 MHz analysis bandwidth)
* **Internal Calibration:** Feature available to save test time.
* **Noise Figure Uncertainty Calculator:** Built-in for pre-populating data from noise source, USB preamplifier, and instrument parameters.
* **Table View:** Allows simultaneous viewing of Noise Figure, Noise Factor, Y-Factor, Gain, Phot, Pcold, and Teffective.
* **Spectrum Analyzer and IQ Analyzer (Basic) Modes:** Included for broader DUT analysis.
Why Choose Aumictech for Keysight N8973B?
At Aumictech, we specialize in supplying high-performance RF and microwave test equipment. Whether you need accurate noise figure measurements, comprehensive component characterization, or efficient wireless system testing, our team ensures the Keysight N8973B delivers maximum performance for your application.

















