- frequency point
- значение частоты
Авиасловарь. М.А.Левин. 2004.
Авиасловарь. М.А.Левин. 2004.
Frequency-hopping spread spectrum — (FHSS) is a method of transmitting radio signals by rapidly switching a carrier among many frequency channels, using a pseudorandom sequence known to both transmitter and receiver. A spread spectrum transmission offers three main advantages over… … Wikipedia
Frequency capping — is a term in advertising that means restricting (capping) the amount of times (frequency) a specific visitor to a website is shown a particular advertisement. This restriction is applied to all websites that serve ads from the same advertising… … Wikipedia
Point-to-point transit — refers to a transportation system where a plane, bus or train travels directly to a destination, rather than going through a central hub. This differs from the spoke hub distribution paradigm in which the transportation goes to a central location … Wikipedia
Point accepted mutation — (PAM), is a set of matrices used to score sequence alignments. The PAM matrices were introduced by Margaret Dayhoff in 1978 based on 1572 observed mutations in 71 families of closely related proteins.[1] Each matrix has the twenty standard amino… … Wikipedia
Frequency compensation — In electrical engineering, frequency compensation is a technique used in amplifiers, and especially in amplifiers employing negative feedback. It usually has two primary goals: To avoid the unintentional creation of positive feedback, which will… … Wikipedia
Point to Point Lee Model — Lee Model for Point to Point Mode is a radio propagation model that operates around 900 MHz. Built as two different modes, this model includes an adjustment factor that can be adjusted to make the model more flexible to different regions of… … Wikipedia
Frequency analysis — In cryptanalysis, frequency analysis is the study of the frequency of letters or groups of letters in a ciphertext. The method is used as an aid to breaking classical ciphers.this is wrong is based on the fact that, in any given stretch of… … Wikipedia
frequency — /free kweuhn see/, n., pl. frequencies. 1. Also, frequence. the state or fact of being frequent; frequent occurrence: We are alarmed by the frequency of fires in the neighborhood. 2. rate of occurrence: The doctor has increased the frequency of… … Universalium
Point Sur Lighthouse — Infobox Lighthouse caption = U.S. Coast Guard Archive location = Point Sur Lightstation State Historic Park, California coordinates = coord|36.3063|N|121.9016|W yearbuilt = 1889 yearlit = 1889 automated = 1972 yeardeactivated = foundation =… … Wikipedia
Frequency modulation — See also: Amplitude modulation In telecommunications, frequency modulation (FM) conveys information over a carrier wave by varying its frequency (contrast this with amplitude modulation, in which the amplitude of the carrier is varied while its… … Wikipedia
Frequency multiplier — A frequency multiplier is commonly used in a radio receiver or radio transmitter to multiply the base frequency of the oscillator by a predetermined number. This multiplied frequency is then amplified and sent to the final drive stage and into… … Wikipedia