C-QUAM
From HFUnderground
(Difference between revisions)
Redhat (Talk | contribs)
(Created page with "'''Compatible Quadrature Amplitude Modulation (C-QUAM)''' is a means of transmitting stereophonic audio in a means that is compatible with monophonic AM receivers. Developed...")
Newer edit →
(Created page with "'''Compatible Quadrature Amplitude Modulation (C-QUAM)''' is a means of transmitting stereophonic audio in a means that is compatible with monophonic AM receivers. Developed...")
Newer edit →
Revision as of 07:18, 8 December 2020
Compatible Quadrature Amplitude Modulation (C-QUAM) is a means of transmitting stereophonic audio in a means that is compatible with monophonic AM receivers. Developed by Motorola in 1977, this technique was one of four systems proposed to allow commercial station in the United States and elsewhere to transmit stereo audio. Although never authorized for service on high frequency broadcast stations, some commercial equipment can be modified for such service. Although rare, some shortwave receivers did include C-QUAM decoding, notably the NRD-545. Today in the SDR age, there are software programs that can natively receive or decode stereo broadcasts. These include SoDiRa, and SdrDX.
