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Radio control. Radio control (often abbreviated to RC) is the use of control signals transmitted by radio to remotely operate a device. Examples of simple radio control systems are garage door openers and keyless entry systems for vehicles, in which a small handheld radio transmitter unlocks or opens doors.
Batteryless radio. A batteryless radio is a radio receiver which does not require the use of a battery to provide it with electrical power. Originally this referred to units which could be used directly by AC mains supply (mains radio); it can also refer to units which do not require a power source at all, except for the power that they receive ...
Most of these were connected to the set being controlled by wires, but the Philco Mystery Control (1939) was a battery-operated low-frequency radio transmitter, [14] thus making it the first wireless remote control for a consumer electronics device. Using pulse-count modulation, this also was the first digital wireless remote control.
A remote radio head (RRH), also called a remote radio unit (RRU) in wireless networks, is a remote radio transceiver that connects to an operator radio control panel via electrical or wireless interface.
The smallest remote-controlled production model helicopter made (Guinness World Records 2014) is the Silverlit Nano Falcon XS sold at many toy stores (although this is infrared controlled, not radio), electronics stores and internet stores, costing about $30 (£28).
The following is a list of radio stations owned by Audacy, Inc. As of June 2023, Audacy (then known as Entercom) operates 227 radio stations in 45 media markets across the United States . On February 2, 2017, Entercom announced that it had agreed to acquire CBS Radio. The purchase gave Entercom operations in 23 of the top 25 markets, making it ...
The Remote Activation Munition System (RAMS) is a radio frequency controlled system that is used to remotely detonate demolition charges. It can also be used to remotely operate electronic equipment such as beacons, laser markers, and radios.
AC-operated radios using power transformers require repair and refurbishment of the power supply section before operation, as any failures are likely to stress or damage the power transformer, necessitating a costly repair.
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