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A wireless microphone, or cordless microphone, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Also known as a radio microphone , it has a small, battery-powered radio transmitter in the microphone body, which transmits the audio signal from the ...
In the UK, use of wireless microphone systems requires a Wireless Telegraphy Act license, except for the license free bands of 173.8–175.0 MHz and 863–865 MHz, sometimes referred to as "Channel 70" (not to be confused with TV Channel 69, which was 854–862 MHz and always required a license from JFMG Ltd [1] although licences are no longer ...
Mode 3 (telephone) In telephony, mode 3 is a method of line sharing in which the line passes through a device (the mode 3 device) to connect to other devices. [1] This enables the mode 3 device to control the line, and gain priority in need. It is a common alternative to parallel connection. For example, a dial-up computer modem is generally ...
A microphone stand. A microphone stand is a free-standing mount for a microphone. It allows the microphone to be positioned in the studio, on stage or on location without requiring a person to hold it. The most basic microphone stand is a straight stand. It uses a dome -shaped round metal base, or a tripod base, into which is threaded a post ...
An example of a Wireless Emergency Alert on an Android smartphone, indicating a Tornado Warning in the covered area. Wireless Emergency Alerts (WEA, formerly known as the Commercial Mobile Alert System (CMAS), and prior to that as the Personal Localized Alerting Network (PLAN)), is an alerting network in the United States designed to disseminate emergency alerts to mobile devices such as cell ...
The proposed Advanced Video System bundle includes cassette drive and wireless accessories. Subsequent plans for the Nintendo Advanced Video System likewise never materialized. It was privately demonstrated as a repackaged Famicom console featuring a keyboard, cassette data recorder, wireless joystick controller, and a special BASIC cartridge.
Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...
Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, sound recording, two-way radios, megaphones, and radio and television broadcasting.