amplitude modulation quality
41Noise (electronics) — Electronic noise [1] is a random fluctuation in an electrical signal, a characteristic of all electronic circuits. Noise generated by electronic devices varies greatly, as it can be produced by several different effects. Thermal noise is… …
42Digital terrestrial television — List of digital television broadcast standards DVB standards (Europe) DVB S (satellite) DVB S2 DVB T (terrestrial) DVB T2 DVB C …
43Vintage amateur radio — is a subset of the amateur radio hobby, considered a form of nostalgia much like antique car collecting, where enthusiasts collect, restore, preserve, build, and operate amateur radio equipment from bygone years, most notably those using vacuum… …
44FM broadcasting — See also: frequency modulation and FM broadcast band FM broadcasting is a broadcasting technology pioneered by Edwin Howard Armstrong which uses frequency modulation (FM) to provide high fidelity sound over broadcast radio. The term FM band… …
45NICAM — This article is about a compression form for digital audio. For the media content rating institute, see Netherlands Institute for the Classification of Audiovisual Media. NICAM stands for Near Instantaneous Companded Audio Multiplex. It is an… …
46Terrestrial Trunked Radio — TETRA redirects here. For other uses, see Tetra (disambiguation) TErrestrial Trunked RAdio [ETSI EN 300 392 2 v3.2.1] (TETRA) (formerly known as Trans European Trunked RAdio ) is a specialist Professional Mobile Radio [http://www.tetra… …
47Multiple sub-nyquist sampling Encoding system — MUSE (Multiple Sub nyquist Sampling Encoding System), also known as Hi Vision for marketing purposes, was an early high definition analog television standard developed in Japan. Japan had the earliest working HDTV system, with design efforts… …
48AM broadcasting — is the process of radio broadcasting using amplitude modulation.HistoryAM was the dominant method of broadcasting during the first eighty years of the 20th century and remains widely used into the 21st.AM radio began with the first, experimental… …
49D-STAR — This article is about the digital voice mode used in amateur radio. For the physical quantity, see Specific detectivity. For the concept in robotics, see D* search algorithm. For more details on this topic, see List of amateur radio modes. ICOM… …
50telecommunications media — Introduction equipment and systems metal wire, terrestrial and satellite radio, and optical fibre employed in the transmission of electromagnetic signals. Transmission media and the problem of signal degradation Every… …
