| podobné slovo | definícia |
bi-directional
(encz) | bi-directional,obousměrný adj: Dan Ditrich |
bidirectional
(encz) | bidirectional,obousměrný |
bidirectionally
(encz) | bidirectionally,obousměrně |
directional antenna
(encz) | directional antenna, n: |
directionality
(encz) | directionality,směrovost n: Zdeněk Brož |
directionally
(encz) | directionally, |
nondirectional antenna
(encz) | nondirectional antenna, n: |
omnidirectional
(encz) | omnidirectional,všesměrový adj: jk |
omnidirectional antenna
(encz) | omnidirectional antenna,všesměrová anténa n: [el.] Petr Menšík |
omnidirectional radio range
(encz) | omnidirectional radio range, n: |
omnidirectional range
(encz) | omnidirectional range, n: |
unidirectional
(encz) | unidirectional,jednosměrný adj: Zdeněk Brož |
unidirectionality
(encz) | unidirectionality, |
unidirectionally
(encz) | unidirectionally,jednosměrně Zdeněk Brož |
non-directional beacon
(czen) | Non-Directional Beacon,NDB[zkr.] [voj.] Zdeněk Brož a automatický
překlad |
directional antenna
(gcide) | Antenna \An*ten"na\, n.; pl. Antenn[ae]. [L. antenna
sail-yard; NL., a feeler, horn of an insect.]
1. (Zool.) A movable, articulated organ of sensation,
attached to the heads of insects and Crustacea. There are
two in the former, and usually four in the latter. They
are used as organs of touch, and in some species of
Crustacea the cavity of the ear is situated near the basal
joint. In insects, they are popularly called horns, and
also feelers. The term in also applied to similar organs
on the heads of other arthropods and of annelids.
[1913 Webster]
2. (Electronics) A metallic device, variously shaped,
designed for the purpose of either transmitting or
receiving radio waves, as for radio or television
broadcasting, or for transmitting communication signals.
Some types are: whip antenna, antenna tower, {horn
antenna}, dish antenna, directional antenna and
rabbit ears. See transmitter, receiver.
[PJC] |
directionality
(gcide) | directionality \directionality\ n.
the property of a microphone or antenna of being more
sensitive to signal arriving from one direction than from
another.
Syn: directivity.
[WordNet 1.5] |
bidirectional
(wn) | bidirectional
adj 1: reactive or functioning or allowing movement in two
usually opposite directions [ant: unidirectional] |
directional antenna
(wn) | directional antenna
n 1: an antenna that transmits or receives signals only in a
narrow angle |
directional microphone
(wn) | directional microphone
n 1: a microphone that is designed to receive sound from a
particular direction |
directionality
(wn) | directionality
n 1: the property of a microphone or antenna of being more
sensitive in one direction than in another; "the antenna
received signals with no directivity" [syn: directivity,
directionality]
2: the property of being directional or maintaining a direction;
"the directionality of written English is from left to right" |
nondirectional antenna
(wn) | nondirectional antenna
n 1: an antenna that sends or receives signals equally in all
directions [syn: omnidirectional antenna, {nondirectional
antenna}] |
omnidirectional
(wn) | omnidirectional
adj 1: not directional; "omnidirectional antenna" [ant:
directional] |
omnidirectional antenna
(wn) | omnidirectional antenna
n 1: an antenna that sends or receives signals equally in all
directions [syn: omnidirectional antenna, {nondirectional
antenna}] |
omnidirectional radio range
(wn) | omnidirectional radio range
n 1: a navigational system consisting of a network of radio
beacons that provide aircraft with information about exact
position and bearing [syn: omnirange, {omnidirectional
range}, omnidirectional radio range] |
omnidirectional range
(wn) | omnidirectional range
n 1: a navigational system consisting of a network of radio
beacons that provide aircraft with information about exact
position and bearing [syn: omnirange, {omnidirectional
range}, omnidirectional radio range] |
unidirectional
(wn) | unidirectional
adj 1: operating or moving or allowing movement in one direction
only; "a unidirectional flow"; "a unidirectional
antenna"; "a unidirectional approach to a problem" [ant:
bidirectional] |
bidirectional printing
(foldoc) | bidirectional printing
A feature of a printer whose printer head can print
both when moving left to right and when moving right to left.
Also known as "boustrophedonic".
(1995-04-13)
|
directional coupler
(foldoc) | directional coupler
(tap) A passive device used in cable
systems to divide and combine radio frequency signals. A
directional coupler has at least three ports: line in, line
out, and the tap. The signal passes between line in and line
out ports with loss referred to as the insertion loss. A
small portion of the signal power applied to the line in port
passes to the tap port. A signal applied to the tap port is
passed to the line in port less the tap attenuation value.
The tap signals are isolated from the line out port to prevent
reflections. A signal applied to the line out port passes to
the line in port and is isolated from the tap port. Some
devices provide more than one tap output line (multi-taps).
(1995-12-23)
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