- automatic frequency control circuit
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схема автоматической подстройки частоты, схема АПЧ
Англо-русский словарь технических терминов. 2005.
automatic frequency control circuit
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Automatic frequency control — (AFC) is a method (or device) to automatically maintain a tuning of electromagnetic radiation (radio or microwave) signal to desired frequency. Assuming that a receiver is nearly tuned to the desired frequency, a circuit in the receiver develops… … Wikipedia
Frequency synthesizer — A frequency synthesizer is an electronic system for generating any of a range of frequencies from a single fixed timebase or oscillator. They are found in many modern devices, including radio receivers, mobile telephones, radiotelephones, walkie… … Wikipedia
control system — Means by which a set of variable quantities is held constant or caused to vary in a prescribed way. Control systems are intimately related to the concept of automation but have an ancient history. Roman engineers maintained water levels in… … Universalium
Automatic link establishment — Automatic Link Establishment, commonly known as ALE, is the worldwide de facto standard for digitally initiating and sustaining HF (High Frequency) radio communications.cite web|title=Frequency Agile Systems in the MF/HF Bands |author=Telecom… … Wikipedia
Automatic Message Accounting — (AMA) provides detail billing for telephone calls. When Direct Distance Dialing (DDD) was introduced in the USA, message registers no longer sufficed for dialed telephone calls. The need to record the time and phone number of each long distance… … Wikipedia
Automatic number plate recognition — The system must be able to deal with different styles of license plates … Wikipedia
Control of the National Grid — The National Grid is the high voltage electric power transmission network in Great Britain, connecting power stations and major substations, and has a synchronized organization such that electricity generated anywhere in Great Britain can be used … Wikipedia
Control (management) — Controlling is one of the managerial functions like planning, organizing, staffing and directing. It is an important function because it helps to check the errors and to take the corrective action so that deviation from standards are minimized… … Wikipedia
Circuit breaker — For other uses, see Circuit breaker (disambiguation). An air circuit breaker for low voltage (less than 1000 volts) power distribution switchgear … Wikipedia
Continuous Automatic Warning System — For the gun, see Heckler Koch HK CAWS. For the wrestling video game creation mode, see Create a wrestler. The Continuous Automatic Warning System (CAWS) is a form of cab signalling and train protection system used in Ireland to help train drivers … Wikipedia
Traffic Control — ➡ law enforcement * * * Introduction supervision of the movement of people, goods, or vehicles to ensure efficiency and safety. Traffic is the movement of people and goods from one location to another. The movement typically occurs… … Universalium
