DESCRIPTION
The 346A Broadband Noise Source is designed for a broad range of measurement applications. It is especially designed for accurately characterizing the noise figure of DUT's which does not include an isolator at the input. Without an isolator such devices can change gain during the noise figure measurement and thereby cause large errors in measuring noise figure. The 346A has a very small change in reflection coefficient (<0.01) from ON to OFF to minimize the gain changes.

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  Noise Figure Meters

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