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In the context of [[The Teaching Mission]], it is understood that transmitters (or [[TR]]'s) are those [[human]] personalities offering the use of their mind and voice to give expression to those ascendant [[teachers]] who remain unseen.
[[Image:lighterstill.jpg]][[File:Kg_transmit_medium.jpg|right|frame]]
==Definitions==
1. something that transmits something (in all [[senses]])
2. an electronic device that generates and amplifies a carrier [[wave]], modulates it with a [[meaningful]] signal derived from [[speech]], [[music]], TV or other sources, and broadcasts the resulting signal from an antenna [https://en.wiktionary.org/wiki/transmitter]
<center>For lessons on the related [[topic]] of '''''[[Transmitting]]''''' (or TR'ing), follow [https://nordan.daynal.org/wiki/index.php?title=Category:Transmitting '''''this link'''''].</center>
==Description==
A transmitter (sometimes abbreviated XMTR) is an electronic device which with the aid of an antenna propagates an electromagnetic signal such as radio, television, or other telecommunications.
A transmitter usually has a [[power]] supply, an oscillator, a modulator, and amplifiers for audio frequency (AF) and radio frequency (RF). The modulator is the device which piggybacks (or modulates) the signal [[information]] onto the carrier frequency, which is then broadcast. Sometimes a device (for example, a cell phone) contains both a transmitter and a radio receiver, with the combined unit referred to as a transceiver - see also Radio transmitter [[design]].
''More generally and in [[communications]] and [[information]] [[process]]ing, a "transmitter" is any object (source) which sends information to an observer (receiver). When used in this more general sense, [[voice|vocal]] cords may also be considered an example of a "transmitter".''
In industrial process control a "transmitter" is any device which converts measurements from a sensor into a signal to be received, usually sent via wires, by some display or control device located a distance away. Typically in process control applications the "transmitter" will output a 4-20 mA current loop or digital [[protocol]] to represent a measured variable within a range. For example, a pressure transmitter might use 4 ma as a representation for 50 psig of pressure and 20 ma as 1000 psig of pressure and any value in between proportionately ranged between 50 and 1000 psig. Older [[technology]] transmitters used pneumatic pressure typically ranged between 3 to 15 psig (20 to 100 kPa) to represent a process variable. [https://en.wikipedia.org/wiki/Transmitter]
==Note==
In the [[context]] of [[The Teaching Mission]], it is understood that '''transmitters''' (or [[TR]]'s) are those [[human]] personalities offering the use of their [[mind]] and [[voice]] to give expression to celestial [[teachers]] who remain unseen. For a list of these TR's, follow [https://nordan.daynal.org/wiki/index.php?title=Category:TR '''''this link'''''].
[[Category: General Reference]]
