Agilent 346A

Agilent 346A

10 MHz to 18 GHz 346 Series Noise Source nominal ENR 5dB

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Product Description:

Agilent 346A 10 MHz to 18 GHz 346 Series Noise Source nominal ENR 5dB

Agilent 346A

Data sheet (PDF)

Key Features & Specifications

  • Frequency range: 10 MHz to 18 GHz
  • VSWR: < 1.3:1
  • Connectors: BNC (f) input bias / 3.5 mm (m)
  • Low SWR for reducing noise figure measurement uncertainty
  • Individually calibrated ENR values at specific frequencies
  • Calibration supplied on floppy disk for easy loading into NFA Series Noise Figure Analyzers
  • 1 year standard warranty


The Agilent 346A noise source is the ideal companion to Agilent's noise figure solutions. Since it is broadband (10 MHz to 18 GHz), it eliminates the necessity for several sources at different frequency bands. The low SWR of the noise source reduces a major source of measurement uncertainty; reflections of test signals. The very small change in reflection coefficient (<0.01) from ON to OFF is designed especially for accurate characterization of input-impedance-sensitive devices (like GaAsFETs and many UHF amplifiers).

Performance Characteristics of the 346A

Form Factor Benchtop
Type Noise Source
Minimum Frequency 10 MHz
Maximum Frequency 18 GHz
Minimum Excess Noise Ratio 5 dB
Maximum Excess Noise Ratio 7 dB

Programmability/Connectivity of the 346A

User Interface Proprietary

346A Compliance

CE Compliance Not on file
UL Compliance Not compliant

346A Power Requirements

Input Power Universal (Auto Sense and Switch)

346A Physical Dimensions

  • Width: (N/A)
  • Height: 5.51 in(.21 in)
  • Length: 1.18 in(.04 in)
  • Weight: (N/A)