What is "qam"

init. 1 Q animation machine 2 quality assurance management 3 quality assurance manager 4 quality assurance manual 5 quadrature amplitude modulation

QAM may refer to:

• Quadrature amplitude modulation
• QAM (television)
• q.AM ( Quaque die Ante Meridiem), indicates medication should be taken every morning
• Quantum analog of AM complexity class - see QMA
• Queer Azaadi Mumbai, LGBT pride march held in the Indian city of Mumbai

QAM stands for quadrature amplitude modulation, the format by which digital cable channels are encoded and transmitted via cable television providers. QAM is used in a variety of communications systems such as Dial-up modems and WiFi. In cable systems, a QAM tuner is linked to the cable in a manner that is equivalent to an ATSC tuner which is required to receive over-the-air (OTA) digital channels broadcast by local television stations when attached to an antenna. Most new HDTV digital televisions support both of these standards. QAM uses the same 6 MHz bandwidth as ATSC, using a standard known as ITU-T Recommendation J.83 Annex B ("J.83b").