Explore topic-wise fullforms in Radio Science

INFO: Full form for DG is Darling Girl in Radio Science category
DG also has other full forms in other categories mentioned below.

INFO: Full form for SEC is Gas Sampling Method in Radio Science category
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INFO: Full form for DOE is Dynamic Output Element in Radio Science category
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INFO: Full form for DRA is Delaware Repeater Association in Radio Science category
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INFO: Full form for TETRA is Trans-european Trunked Raadio in Radio Science category
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INFO: Full form for WARC is Westlake Amateur Radio Club in Radio Science category
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INFO: Full form for WARC is Worcester Amateur Radio Club in Radio Science category
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INFO: Full form for WARC is Warminster Amateur Radio Club in Radio Science category
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INFO: Full form for WARC is Warren Amateur Radio Club in Radio Science category
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INFO: Full form for WARC is Wichita Amateur Radio Club in Radio Science category
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INFO: Full form for TON is Time of Net in Radio Science category
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Wireless telegraphy or radiotelegraphy is transmission of telegraph signals by radio waves. Before about 1910, the term wireless telegraphy was also used for other experimental technologies for transmitting telegraph signals without wires. In radiotelegraphy, information is transmitted by pulses of radio waves of two different lengths called "dots" and "dashes", which spell out text messages, usually in Morse code. In a manual system, the sending operator taps on a switch called a telegraph key which turns the transmitter on and off, producing the pulses of radio waves. At the receiver the pulses are audible in the receiver's speaker as beeps, which are translated back to text by an operator who knows Morse code.

Radiotelegraphy was the first means of radio communication. The first practical radio transmitters and receivers invented in 1894–1895 by Guglielmo Marconi used radiotelegraphy. It continued to be the only type of radio transmission during the first few decades of radio, called the "wireless telegraphy era" up until World War I, when the development of amplitude modulation (AM) radiotelephony allowed sound (audio) to be transmitted by radio. Beginning about 1908, powerful transoceanic radiotelegraphy stations transmitted commercial telegram traffic between countries at rates up to 200 words per minute.

Radiotelegraphy was used for long-distance person-to-person commercial, diplomatic, and military text communication throughout the first half of the 20th century. It became a strategically important capability during the two world wars since a nation without long-distance radiotelegraph stations could be isolated from the rest of the world by an enemy cutting its submarine telegraph cables. Radiotelegraphy remains popular in amateur radio. It is also taught by the military for use in emergency communications. However, commercial radiotelegraphy is nearly obsolete.

INFO: Full form for RFO is Radio Frequency Oscillator in Radio Science category
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INFO: Full form for RH is Right Handed Polarization in Radio Science category
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INFO: Full form for SCC is Signal Conditioning Carrier in Radio Science category
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Sound quality is typically an assessment of the accuracy, fidelity, or intelligibility of audio output from an electronic device. Quality can be measured objectively, such as when tools are used to gauge the accuracy with which the device reproduces an original sound; or it can be measured subjectively, such as when human listeners respond to the sound or gauge its perceived similarity to another sound.

The sound quality of a reproduction or recording depends on a number of factors, including the equipment used to make it, processing and mastering done to the recording, the equipment used to reproduce it, as well as the listening environment used to reproduce it. In some cases, processing such as equalization, dynamic range compression or stereo processing may be applied to a recording to create audio that is significantly different from the original but may be perceived as more agreeable to a listener. In other cases, the goal may be to reproduce audio as closely as possible to the original.

When applied to specific electronic devices, such as loudspeakers, microphones, amplifiers or headphones sound quality usually refers to accuracy, with higher quality devices providing higher accuracy reproduction. When applied to processing steps such as mastering recordings, absolute accuracy may be secondary to artistic or aesthetic concerns. In still other situations, such as recording a live musical performance, audio quality may refer to proper placement of microphones around a room to optimally use room acoustics.

INFO: Full form for SCA is Subsidiary Carrier Authorization in Radio Science category
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INFO: Full form for NCS is Net Control Station in Radio Science category
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INFO: Full form for RAL is Robert A. Leskovec, K8dts in Radio Science category
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