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QMA and QN connector

Index QMA and QN connector

QMA and QN connectors are quick-connect RF connectors that were designed to replace the widely used SMA (used in low power transmissions; DC–18 GHz) and Type N (used in medium power transmissions; DC–11 GHz) connectors. [1]

11 relations: Amphenol, Antenna (radio), Cell site, Coaxial, Hertz, N connector, Printed circuit board, Radiall, RF connector, SMA connector, Torque wrench.


Amphenol Corporation is a major producer of electronic and fiber optic connectors, cable and interconnect systems such as coaxial cables.

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Antenna (radio)

In radio, an antenna is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver.

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Cell site

A cell site or cell tower is a cellular-enabled mobile device site where antennae and electronic communications equipment are placed — typically on a radio mast, tower, or other raised structure — to create a cell (or adjacent cells) in a cellular network.

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In geometry, coaxial means that two or more three-dimensional linear forms share a common axis.

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The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.

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N connector

The N connector (in full, Type N connector) is a threaded, weatherproof, medium-size RF connector used to join coaxial cables.

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Printed circuit board

A printed circuit board (PCB) mechanically supports and electrically connects electronic components or electrical components using conductive tracks, pads and other features etched from one or more sheet layers of copper laminated onto and/or between sheet layers of a non-conductive substrate.

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Radiall is a company that designs, develops, and manufactures connectors and associated components for use in electronic applications.

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RF connector

A coaxial RF connector (radio frequency connector) is an electrical connector designed to work at radio frequencies in the multi-megahertz range.

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SMA connector

SMA (SubMiniature version A) connectors are semi-precision coaxial RF connectors developed in the 1960s as a minimal connector interface for coaxial cable with a screw-type coupling mechanism.

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Torque wrench

A torque wrench is a tool used to apply precisely a specific torque to a fastener such as a nut or bolt.

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Redirects here:

CQMA, Mini-CQMA and CQN, Mini-QMA connector.


[1] https://en.wikipedia.org/wiki/QMA_and_QN_connector

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