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An exhaust gas temperature gauge (EGT gauge or EGT sensor) is a meter used to monitor the exhaust gas temperature of an internal combustion engine in conjunction with a thermocouple-type pyrometer. EGT gauges are found in certain cars and aeroplanes. By monitoring EGT, the driver or pilot can get an idea of the vehicle's air-fuel ratio (AFR).
The AM/FM radio combined with a CD player has remained a mainstay of car audio, despite being obsolescent in non-car applications. [17] [18] In the 2010s, internet radio, satellite radio, streaming, and podcasting came into competition with AM/FM radio. By this time some models were offering 5.1 surround sound.
=, [2] where k is the Boltzmann constant (1.380 648 52 (79) × 10 −23 J/K). The receiver also has a temperature associated with it, T E, and the total system temperature T (antenna plus receiver) has a combined temperature given by T = T A + T E. This temperature can be used in the above equation to find the total noise power of the system.
An RDS-TMC receiver is a special FM radio tuner that can decode TMC data. Satellite TMC receivers use a dedicated data channel that is broadcast as part of much larger broadcast digital audio channels. TMC data is decoded by matching event and location codes against look-up tables of phrases and locations.
[2] = + The antenna noise temperature gives the noise power seen at the output of the antenna. The composite noise temperature of the receiver and transmission line losses represents the noise contribution of the rest of the receiver system. It is calculated as the effective noise that would be present at the antenna input terminals if the ...
The reflex receiver was a design from the early 20th century which consists of a single-stage TRF receiver but which used the same amplifying tube to also amplify the audio signal after it had been detected. This was in an era where each tube was a major cost (and consumer of electrical power) so that a substantial increase in the number of ...
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A television tuner or TV tuner, also called a TV receiver, is a component or subsystem that converts analog television or digital television transmissions into audio and video signals which can be further processed to produce sound and a picture. [29] [30] [31] A TV tuner must filter out unwanted signals and have a high signal-to-noise ratio. [32]