Null

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Null

</dt>
In direction-finding systems wherein the output amplitude is a function of the direction of arrival of the signal, the minimum output amplitude (ideally zero). </dd>
The null is frequently employed as a means of determining bearing. The term minimum is often used to indicate an imperfect null. [[/a>|/a> ]]

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use