• Signal One (also known as Bullet Down Under) is a 1994 Australian crime film directed by Rob Stewart and starring Christopher Atkins, Mark Jackson, Richard...
    3 KB (220 words) - 04:49, 8 October 2024
  • Thumbnail for Signal/One
    Signal/One was a manufacturer of high performance SSB and CW HF radio communications transceivers initially based in St. Petersburg, Florida, United States...
    4 KB (350 words) - 04:23, 24 August 2024
  • Signals are standardized messages sent to a running program to trigger specific behavior, such as quitting or error handling. They are a limited form...
    31 KB (3,432 words) - 00:48, 4 May 2025
  • Thumbnail for Signal
    multiple subject fields including signal processing, information theory and biology. In signal processing, a signal is a function that conveys information...
    30 KB (3,517 words) - 19:45, 14 April 2025
  • jurisdictions signal services need to be registered with the authorities. Services provided fall into four categories: Unpaid/free signals Paid signals from one provider...
    4 KB (409 words) - 21:29, 1 December 2024
  • Thumbnail for Signal (software)
    Signal is an American open-source, encrypted messaging service for instant messaging, voice calls, and video calls. The instant messaging function includes...
    140 KB (11,998 words) - 19:39, 28 May 2025
  • Thumbnail for Railway signal
    A railway signal is a visual display device that conveys instructions or provides warning of instructions regarding the driver's authority to proceed....
    27 KB (3,209 words) - 07:41, 27 April 2025
  • Thumbnail for Ring modulation
    is a signal processing function, an implementation of frequency mixing, in which two signals are combined to yield an output signal. One signal, called...
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  • Thumbnail for Digital signal
    A digital signal is a signal that represents data as a sequence of discrete values; at any given time it can only take on, at most, one of a finite number...
    14 KB (1,567 words) - 01:01, 23 April 2025
  • Thumbnail for One Unique Signal
    Formed in 2002, One Unique Signal are a British, London based, five piece playing loud repetitive experimental music. The band also perform live and record...
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  • Thumbnail for Cell signaling
    signaling (cell signalling in British English) is the process by which a cell interacts with itself, other cells, and the environment. Cell signaling...
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  • Thumbnail for Time signal
    A time signal is a visible, audible, mechanical, or electronic signal used as a reference to determine the time of day. Church bells or voices announcing...
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  • Thumbnail for Signalling theory
    Within evolutionary biology, signalling theory is a body of theoretical work examining communication between individuals, both within species and across...
    78 KB (9,237 words) - 14:50, 22 May 2025
  • Thumbnail for Wow! signal
    The Wow! signal was a strong narrowband radio signal detected on August 15, 1977, by Ohio State University's Big Ear radio telescope in the United States...
    33 KB (3,400 words) - 05:24, 10 June 2025
  • Thumbnail for Japanese railway signals
    can proceed past a block signal after stopping for one minute at the signal, even if the signal is "stop". Each block signal is identified by an identification...
    31 KB (3,490 words) - 18:41, 25 May 2025
  • Thumbnail for Signalling block system
    Signalling block systems enable the safe and efficient operation of railways by preventing collisions between trains. The basic principle is that a track...
    22 KB (3,114 words) - 21:06, 15 March 2025
  • Railway signals in Germany are regulated by the Eisenbahn-Signalordnung (ESO, railway signalling rules). There are several signalling systems in use,...
    39 KB (5,540 words) - 12:09, 1 June 2025
  • Thumbnail for Digital signal (signal processing)
    of digital signal processing (DSP), a digital signal is a discrete time, quantized amplitude signal. In other words, it is a sampled signal consisting...
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  • Thumbnail for Signal processing
    digital signal processor chips in the 1980s. A signal is a function x ( t ) {\displaystyle x(t)} , where this function is either deterministic (then one speaks...
    23 KB (2,280 words) - 18:29, 27 May 2025
  • a signal from a sequence of time samples of the signal. Intuitively speaking, the spectral density characterizes the frequency content of the signal. One...
    23 KB (3,535 words) - 18:54, 25 May 2025
  • Signal transition, when referring to the modulation of a carrier signal, is a change from one significant condition to another. Examples of signal transitions...
    763 bytes (105 words) - 17:30, 13 September 2024
  • Thumbnail for Signal transduction
    Signal transduction is the process by which a chemical or physical signal is transmitted through a cell as a series of molecular events. Proteins responsible...
    62 KB (7,645 words) - 05:36, 2 June 2025
  • investment in signals to enhance one’s perceived attractiveness, formidability, or cooperative value to members of their own species. A signal differs from...
    82 KB (10,332 words) - 08:05, 1 June 2025
  • separation, blind signal separation (BSS) or blind source separation, is the separation of a set of source signals from a set of mixed signals, without the...
    10 KB (1,301 words) - 05:05, 20 May 2025
  • Signal modulation is the process of varying one or more properties of a periodic waveform in electronics and telecommunication for the purpose of transmitting...
    24 KB (3,051 words) - 11:37, 29 May 2025
  • Thumbnail for Infield fly rule
    umpires signal one another at the start of an at-bat to remind one another that the game situation puts the rule into effect. A typical signal is to touch...
    20 KB (2,886 words) - 11:34, 1 June 2025
  • of the signal. One hundred samples per symbol would be about the lowest number that is workable. Now that the amplitude change of the signal is known...
    4 KB (493 words) - 22:49, 24 May 2025
  • can be optically emulated with a three-path interferometer. In a QAM signal, one carrier lags the other by 90°, and its amplitude modulation is customarily...
    15 KB (1,889 words) - 18:27, 29 May 2025
  • A distress signal, also known as a distress call, is an internationally recognized means for obtaining help. Distress signals are communicated by transmitting...
    18 KB (2,182 words) - 21:54, 15 March 2025
  • Thumbnail for Heterodyne
    Heterodyne (category Signal processing)
    inventor-engineer Reginald Fessenden. Heterodyning is used to shift signals from one frequency range into another, and is also involved in the processes...
    29 KB (3,833 words) - 15:54, 24 May 2025