California, CodeSignal offers coding tests, assessments, and learning platforms designed to measure and improve coding skills. CodeSignal was founded...

The International Code of Signals (INTERCO) is an international system of signals and codes for use by vessels to communicate important messages regarding...

The Aeronautical Code signals are radio signal codes. They are part of a larger set of Q Codes allocated by the ITU-R. The QAA–QNZ code range includes phrases...

The Q-code is a standardised collection of three-letter codes that each start with the letter "Q". It is an operating signal initially developed for commercial...

Morse code is a telecommunications method which encodes text characters as standardized sequences of two different signal durations, called dots and dashes...

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maritime signal flags are various flags used to communicate with ships. The principal system of flags and associated codes is the International Code of Signals...

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multiple subject fields including signal processing, information theory and biology. In signal processing, a signal is a function that conveys information...

Pulse code cab signaling is a form of cab signaling technology developed in the United States by the Union Switch and Signal corporation for the Pennsylvania...

signals at sea are defined in the International Regulations for Preventing Collisions at Sea and in the International Code of Signals. Mayday signals...

police codes include "10 codes" (such as 10-4 for "okay" or "acknowledged"—sometimes written X4 or X-4), signals, incident codes, response codes, or other...

sunlight for signalling. It was mainly used in areas where the electrical telegraph had not been established and generally used the same code. The most extensive...

radiotelegraph (Morse code) signal. If a mayday call cannot be sent because a radio is not available, a variety of other distress signals and calls for help...

A color code is a system for encoding and representing non-color information with colors to facilitate communication. This information tends to be categorical...

Virtually all signalling by non-naval vessels is now organized under the International Code of Signals (whether by flaghoist, semaphore, signal lamp, or other...

readability (quality) of the radiotelephone (voice) or radiotelegraph (Morse code) signal transmitted by another station as received at the reporting station's...

storage medium. This repertoire of signals is usually called a constrained code in data storage systems. Some signals are more prone to error than others...

The C/A code is transmitted on the L1 frequency as a 1.023 MHz signal using a bi-phase shift keying (BPSK) modulation technique. The P(Y)-code is transmitted...

In the UMTS cellular communication system, received signal code power (RSCP) denotes the power measured by a receiver on a particular physical communication...

Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by US public safety...

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

Z Code (like Q Code and X Code) is a set of operating signals used in CW, TTY and RTTY radio communication. There are at least three sets of Z codes. There...

the term code conversion has the following meanings: 1. Conversion of signals, or groups of signals, in one code into corresponding signals, or groups...

as "TX") is the process of sending or propagating an analog or digital signal via a medium that is wired, wireless, or fiber-optic. Transmission system...

functionality provided by LibreSignal was subsequently incorporated into Signal by Marlinspike. The complete source code of the Signal clients for Android, iOS...

frequency oscillator (BFO) to make continuous wave radiotelegraphy (Morse code) signals audible. The tonewheel assembly consists of a synchronous AC motor and...

(RZ) line code, where two nonzero values are used, so that the three values are +, −, and zero. Such a signal is called a duobinary signal. Standard bipolar...

constraint and a parallel synchronization signal. NRZ can refer to any of the following serializer line codes: The NRZ code also can be classified as a polar...

self-clocking signal with no DC component. Consequently, electrical connections using a Manchester code are easily galvanically isolated. Manchester code derives...