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Keysight Technologies 346B

Noise Source; Nominal ENR 15 dB, 10 MHz to 18 GHz

Model

346B

Product Family

RF & Microwave Power

Manufacturer

Keysight Technologies

Configured models contain the following attributes:

RF & Microwave PowerNoise & OtherNoise Figure Meters1MHz <= 10MHz10GHz <= 20GHz

Configurations

Key Specs

Product Overview

Resources

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Key Specs

Indicates attributes available at part level. See Configurations tab for part detail.

Attribute	Value
Low Frequency (range)	1MHz <= 10MHz
High Frequency (range)	10GHz <= 20GHz

Product Overview

The Keysight 346B noise source is the ideal companion to Keysight'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 346B's high ENR, low SWR, and variety of connectors make it a general-purpose noise source. Add special option H01 for high ENR (21 dB typical) to measure high noise figure devices, or option H42 for measuring Direct Broadcast Satellite (DBS) low noise block converters.

Key Features

Frequency range: 10 MHz to 18 GHz

VSWR: < 1.3:1

Nominal ENR 15 dB

Connectors: BNC (f) input bias / 3.5 mm (m)

Low SWR for reducing noise figure measurement uncertainty

Individually calibrated ENR values at specific frequencies

Specifications
346B Noise Source
Features	Parameters
ENR Automatic Download	No
Excess Noise Ratio (ENR)	14-16 dB
Maximum Frequency Range	18 GHz
Minimum Frequency Range	10 MHz
Temperature Compensation	No
Works with	NFA, ESA-E Series, PNA-X, PSA-Series, X-Series (PXA, MXA, EXA, CXA)

Specifications
346 Noise Source
Model Overview
Model	Description
346A	The Keysight 346A noise source (10 MHz to 18 GHz) with a 6dB ENR is designed especially for accurate characterization of input-impedance-sensitive device
346B	The Keysight 346B noise source's high ENR (15dB), low SWR, and variety of connectors make it a general-purpose noise source for the range 10 MHz to 18 GHz.
346C	The Keysight 346C noise source offers 10 MHz to 12 GHz coverage with a 16 dB ENR or 12 GHz to 26.5 GHz coverage with a 17 dB ENR.
346CK01	The Keysight 346CK01 is the ideal companion to Keysight's noise figure solutions when working on high-frequency applications.
346CK40	The Keysight 346CK40 is the ideal companion to Keysight´s noise figure solutions when working on high frequency applications. Since it is broadband (1 GHz to 40 GHz), it eliminates the necessity for several sources at different frequency bands.

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