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  2. Noise (video) - Wikipedia

    en.wikipedia.org/wiki/Noise_(video)

    Noise, static or snow screen captured from a blank VHS tape. Noise, commonly known as static, white noise, static noise, or snow, in analog video, CRTs and television, is a random dot pixel pattern of static displayed when no transmission signal is obtained by the antenna receiver of television sets and other display devices.

  3. Time to first fix - Wikipedia

    en.wikipedia.org/wiki/Time_to_first_fix

    Time to first fix (TTFF) is a measure of the time required for a GPS navigation device to acquire satellite signals and navigation data, and calculate a position solution (called a fix). An animation depicting the orbits of GPS satellites in medium Earth orbit

  4. Electromagnetic interference - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_interference

    The RF energy is capacitively coupled from the signal pair to the shield and the shield itself does the radiating. One cure for this is to use a braid-breaker or choke to reduce the common-mode signal. At higher frequencies, usually above 500 MHz, traces get electrically longer and higher above the plane.

  5. Degradation (telecommunications) - Wikipedia

    en.wikipedia.org/wiki/Degradation...

    Degradation usually refers to reduction in quality of an analog or digital signal. When a signal is being transmitted or received, it undergoes changes which are undesirable. These changes are called degradation. Degradation is usually caused by: distance, imitation:see Remote Control, noise, interference or EMI.

  6. Interference (communication) - Wikipedia

    en.wikipedia.org/wiki/Interference_(communication)

    In telecommunications, an interference is that which modifies a signal in a disruptive manner, as it travels along a communication channel between its source and receiver. The term is often used to refer to the addition of unwanted signals to a useful signal. Common examples include: Electromagnetic interference (EMI)

  7. Fix problems signing in to AOL Mail

    help.aol.com/articles/fix-problems-signing-in-to...

    While most sign in problems can stem from password issues, you might also get blank or missing screens, or various errors when trying to sign in. No matter the problem you're experiencing, the following troubleshooting steps should help you get back in your AOL Mail quickly. Sign in again

  8. This video does not show damage from January earthquake in ...

    www.aol.com/video-does-not-show-damage-203414250...

    A Jan. 25 Facebook video (direct link, archive link) shows an array of disaster footage that includes high-rise buildings leaning or collapsing, plane wreckage and dark clouds of smoke. “Taiwan ...

  9. Signal integrity - Wikipedia

    en.wikipedia.org/wiki/Signal_integrity

    Signal integrity or SI is a set of measures of the quality of an electrical signal. In digital electronics , a stream of binary values is represented by a voltage (or current) waveform. However, digital signals are fundamentally analog in nature, and all signals are subject to effects such as noise , distortion , and loss.