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Q

Q band  - The band of frequencies between 36 and 46 gigahertz.


QoS  - Quality of service.

 

QPL  - A Qualified Products List issued by the U.S. government.

 

QPSK (quadrature phase shift keying)  - It is a digital frequency modulation technique used for sending data over coaxial cable networks.

 

Quad  - A series of four separately insulated conductors, generally twisted together in pairs.