Editing Dummy load (section)

{{Short description|Device used to simulate an electrical load}}
{{more footnotes|date=February 2015}}

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| image1 = Cantenna.JPG
| caption1 = Small RF dummy load with capacity of 1 kW at frequencies up to 450 MHz. It consists of a 50Ω resistor immersed in oil to absorb the heat.
| width1 = 160
| image2 = Sender Moosbrunn - RF Dummy Load with sodium hydroxide solution.JPG
| caption2 = Large RF dummy load for [[shortwave]] transmitter at the Moosbrunn transmitting station of the Austrian Broadcasting Service, Moosbrunn, Austria. It uses a [[sodium hydroxide]] solution to absorb the radio energy, which is circulated through the radiator ''(center)'' to cool it. It has a capacity of 100 kW.
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A '''dummy load''' is a device used to simulate an [[electrical load]], usually for testing purposes. In [[radio]] a '''dummy antenna''' is connected to the output of a [[radio transmitter]] and electrically simulates an [[antenna (radio)|antenna]], to allow the transmitter to be adjusted and tested without radiating [[radio wave]]s. In [[audio system]]s, a dummy load is connected to the output of an amplifier to electrically simulate a [[loudspeaker]], allowing the amplifier to be tested without producing sound. [[Load bank]]s are connected to electrical [[power supply|power supplies]] to simulate the supply's intended [[electrical load]] for testing purposes.