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==N== | ==N== | ||
[[File:N connector.jpg|thumb|250px|right]] | |||
The | The [http://en.wikipedia.org/wiki/N_connector N connector] is a threaded, weatherproof, medium-size RF connector used to join coaxial cables. | ||
spectrum analyzers [[1L20]], [[1L30]], [[1L40]], and [[492]] | It was invented in the 1940s by Paul Neill of Bell Labs, after whom the initial was chosen | ||
[[108]] pulse generator. | (although it is often claimed incorrectly that "N" is for "Navy"). | ||
The initial design was a 50 Ω connector for military systems operating below 4 GHz. | |||
In the 1960s, improvements pushed performance to 12 GHz and later to 18 GHz. | |||
75 Ω variants exist (using a smaller center conductor diameter) but are rare | |||
(e.g. on some spectrum analyzers) and not compatible with 50 Ω connectors. | |||
The N connector is seen as the input connector for Tektronix spectrum analyzers [[1L20]], | |||
[[1L30]], [[1L40]], and [[492]], the output on the [[108]] pulse generator, and others. | |||
<gallery> | <gallery> | ||
File:N conn mech.png | |||
</gallery> | </gallery> | ||