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include unwanted signals conflicting with desired signals (crosstalk). The reduction of noise is covered in part under the heading of signal integrity. The...

Signals intelligence (SIGINT) is the act and field of intelligence-gathering by interception of signals, whether communications between people (communications...

GPS signals are broadcast by Global Positioning System satellites to enable satellite navigation. Using these signals, receivers on or near the Earth's...

jurisdictions signal services need to be registered with the authorities. Services provided fall into four categories: Unpaid/free signals Paid signals from one...

males' signals to selective pressure. Signals thus evolve because they modify the behaviour of the receiver to benefit the signaller. Signals may be honest...

The Signal may refer to: The Signal (2007 American film), a horror film written and directed by David Bruckner, Dan Bush, and Jacob Gentry The Signal (2007...

Hand signals are agreed gestures that people make with their hands or body to communicate in a non-verbal way. When used in traffic, hand signals are often...

"Subdivisions" and "Countdown". The group supported Signals with a concert tour from April 1982 to May 1983. Signals has been reissued several times, including...

voltage signals which are equal in magnitude, but of opposite polarity. The receiving circuit responds to the difference between the two signals, which...

A yeoman of signals is a signals petty officer in the British Royal Navy and other Commonwealth navies. The term has been in use since 1816. The designation...

Signal processing is an electrical engineering subfield that focuses on analyzing, modifying and synthesizing signals, such as sound, images, potential...

notify it of an event. Common uses of signals are to interrupt, suspend, terminate or kill a process. Signals originated in 1970s Bell Labs Unix and...

International Code of Signals, a standard for sending signals by displaying flags Maritime flag signalling, generally flaghoist signalling, by which ships communicate...

A distress signal, also known as a distress call, is an internationally recognized means for obtaining help. Distress signals are communicated by transmitting...

Flag signals can mean any of various methods of using flags or pennants to send signals. Flags may have individual significance as signals, or two or...

Traffic lights, traffic signals, or stoplights – also known as robots in South Africa, Zambia, and Namibia – are signaling devices positioned at road intersections...

cases, the signal can be overwhelmed. Noise can show up as hiss and intermodulation distortion in audio signals, or snow in video signals. Generation...

storm signals were hoisted in Victoria Harbour. In 1917, Hong Kong first began using numbered signals. The new system consisted of seven signals (No. 1–7)...

Virtue signalling is the act of expressing opinions or stances that align with popular moral values, often through social media, with the intent of demonstrating...

addition of distant signals on the approach to stop signals. The distant signal gave the driver warning that they were approaching a signal which might require...