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...io frequency]] (RF), to reduce [[RF interference|interference]] with other transmitters. The most important problem encountered in broadcasting via terrestrial transmitters is the interference from other broadcasters. In principle, each broadcaster ...

{{Short description|Transmitters using intermediate frequency}} == Types of transmitters == ...

...and '''thermal'''. Analogue television systems put about 70% to 90% of the transmitters power into the [[Analogue television#Synchronization |sync pulses]]. The re ...ent system and efficiency of the analogue TV transmitter (as most analogue transmitters have on average 75% efficiency). ...

== Nonlinearity in the broadcast system == *[[TV transmitter|Transmitters]] (and sometimes also [[transposer]]s) ...

...impractical for calculating the [[field strength]] produced by terrestrial transmitters, where reflections and [[attenuation]] caused by objects around the transmi [[Category:Broadcast engineering]] ...

...hy]] traffic, until the 1920s when it was made obsolete by [[vacuum tube]] transmitters. ...ower, simplifying the mechanical design.<ref name="Turner" /> Goldschmidt transmitters operated at [[longwave]] ([[low frequency|LF]] and [[very low frequency|VLF ...

{{Short description|Filtering circuit in TV transmitters}} ...is was accomplished by simply omitting the [[burst phase]] signal from the broadcast. The "damaged" signal triggered the "color killer" mechanism in color tele ...

...nce in timing of [[radio wave]]s received from radio [[navigation beacon]] transmitters. ...s to broadcast a signal that is highly correlated in time. Typical systems broadcast either short pulses at the same time, or continual signals that are identic ...

...) was the [[625 lines|625-line]] VHF analog [[Broadcast television systems|broadcast television system]] which at its peak was adopted by more than one hundred ...own as the "Gerber-norm", it was eventually approved along with four other broadcast standards on the next formal CCIR meeting in May 1951 in Geneva.<ref name=" ...

...ations of nodes) plays a fundamental role due to the interference of other transmitters, whereas in wired networks (for example, the [[Internet]]) the underlying g ...ity press.</ref> The multiple access channel is the converse, with several transmitters aiming at sending different data to a single receiver.<ref name="cover2012e ...

...ude modulation|AM]] and [[frequency modulation|FM]] transmission. So spark transmitters could not transmit sound, and instead transmitted information by [[radiotel ...or coil was adjustable to tune the receiver to the frequency of different transmitters. The earliest receivers, before 1897, did not have tuned circuits, they res ...

| [[PAL]] [[Broadcast television systems#ITU identification scheme|M]] color [[subcarrier]] | [[PAL]]-[[Broadcast television systems#ITU identification scheme|N]] color subcarrier ...

...express the [[Electromagnetic radiation|electromagnetic]] power output of broadcast radio and television [[transmitter]]s. {{paragraph}} One kilowatt is approx ...

...probabilistic channel errors, including networks that exploit the wireless broadcast advantage via ''multi-receiver diversity''.<ref name=neely-divbar-journal>M transmitters. The SINR levels for all outgoing links (''n'',''b'') are then known to al ...

...actory solution to the problem of time transfer. Atomic clocks are used to broadcast time signals in the United States [[Global Positioning System|Global Positi ...adio, television, telephone, Internet, [[fiber-optic cables]], time signal transmitters, and speaking clocks. In addition, GNSS provides time information accurate ...

...cialist applications, such as the [[mechanical filter]]s in high-end radio transmitters (marine, military, amateur radio), electronic circuits can be implemented a ...requencies had a greater range, a primary consideration for [[Broadcasting|broadcast]] purposes. These frequencies require long antennae for efficient operation ...

:*Referat VIc: It intercepted and monitored non-German radio broadcast services. It consisted of some 30 personnel.<ref name="Frick" /> ...ion of foreign language transmissions section, processed an average of 253 broadcast transmissions and 234 wireless news service reports were dealt with daily.< ...

The "film capacitors" were developed together with the growing market of broadcast and electronic equipment technology in the mid-20th century. These capacito ...fluctuating DC voltage (such as in power supplies for radio and television transmitters), and for high voltage testing equipment, DC controllers, measurement and c ...