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Hand-held radios usually have a switch or push-button to monitor. Some modern radios have a feature called "Busy Channel Lockout", which will not allow the user to transmit as long as the radio is receiving another signal. A CTCSS decoder is based on a very narrow bandpass filter which passes the desired CTCSS tone.
Yumpu was launched in 2011 as a self-publishing service for B2B by Norbert Rom's i-magazine AG (founded 2006). [1] [2] I-magazine AG, in turn, is a subsidiary of adRom Holding AG, which was also founded by Norbert Rom. [3] In 2016, Yummy Publishing GmbH was founded in Austria as a subsidiary of i-Magazine AG, which supports the parent company with various services.
Centralized traffic control (CTC) is a form of railway signalling that originated in North America. CTC consolidates train routing decisions that were previously carried out by local signal operators or the train crews themselves.
A trunked radio system is an advanced alternative in which the channel selection process is done automatically, so as to avoid channel conflicts and maintain frequency efficiency across multiple talkgroups. This process is handled by what is essentially a central radio traffic controller, a function automatically handled by a computer system.
The simulator is operated from the perspective of a CTC dispatcher. Track diagrams similar to actual CTC displays are provided, and train operations run according to a timetable. Operations can be run in real time or adjusted fast or slow. Version 2 of the software was released in 1997 and supported multiple track territories.
An electronic ankle tag. Electronic tagging is a form of surveillance that uses an electronic device affixed to a person.. In some jurisdictions, an electronic tag fitted above the ankle is used for people as part of their bail or probation conditions.
Rack-mounted video monitors as used in television broadcasting. A video reference monitor, also called a broadcast reference monitor or just reference monitor, is a specialized display device similar to a television set, used to monitor the output of a video-generating device, such as playout from a video server, IRD, video camera, VCR, or DVD player.
The specifications of a RF monitor determines the work environment where could be applicable. Wideband RF monitors can be used at a broader variety of base station sites than for example a narrowband, cellular RF monitor which is designed only to be used in the mobile telephone- and data networks. IEEE Std C95.3 states that "In the region ...