KSIĄŻKI POWIĄZANE ZE SŁOWEM «PARABOLIC AERIAL»
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1
Communication Engineering
In low power TV transmitter, generally (a) 6.3 m diameter parabolic aerial is used
(b) 3.3 m diameter parabolic aerial is used (c) 2.3 m diameter parabolic aerial is
used ((1) 1.3 m diameter parabolic aerial is used. . For low power TV broadcast, ...
Bandyopadhyay M. N., 2010
2
Innovation and the Communications Revolution: From the ...
It was then decided to carry out a larger scale trial, using some 10 kW of power
on a wavelength of 100 metres and a parabolic aerial mounted 325ft high on a
mast at Poldhu. The receiver, which did not use a reflector at the aerial, was ...
3
aerails for centimetre wave lengths
This is largely because they were developed later than other aerial systems, and
also because they require to have about four times the focal length of a similar
parabolic aerial. They have, however, many advantages such as very slack
profile ...
Considerable modifications have also been made to the aerial itself. Originally,
the Goonhilly parabolic aerial was a "deep dish"; in other words, the ratio of its
focal length to its diameter was 1:4, so that the focus of the paraboloid (and so the
...
5
French Dictionary of Information Technology: French/English, ...
... optique optical aerial; ~ orientable directional aerial; multiple-unit steerable
aerial (MUSA); ~ orientée vers la terre ground-plane aerial; ~ papillon bat-wing
aerial; bow-tie aerial; ~ parabolique parabolic aerial; dish aerial; Cassegrain
aerial; ...
This small valve generated a pulse of 25 kilowatts on 9.1 cms and, using a small
parabolic aerial which produced a helical scan, gave a maximum range of six
miles and a minimum of 400 feet. The operators using this AI radar noticed that ...
7
The Inventor of Stereo: The life and works of Alan Dower ...
Theradar equipment was linkedtoaNash& Thompson hydraulicscanner,
essentially a parabolic aerial, suspended in the pod under the aircraft. The
ground reflections were to be displayed on a circular CRTmounted
insidetheaircraft, positioned ...
8
Beyond Southern Skies: Radio Astronomy and the Parkes Telescope
In 1947 he and John Clegg constructed a fixed parabolic aerial 218 feet in
diameter consisting of a spider's web of wire suspended on upright tubular
supports. Although Lovell initially had radar studies of cosmic rays and meteors
in mind, the ...
The 20-inch parabolic aerial of the microwave device is tuned to pick up
electromagnetic radiation at wavelengths of 13.5 mm and 19 mm. The first of
these, from which the evidence of high surface temperatures was derived in 1956
, is a ...
... apparatus for radio- telephony and radio-telegraphy [ITA 1 A-052): parts of
paging alert 8529.10.10 devices [ITA I'B- 197] Free E - - Parabolic aerial reflector
dishes for direct broadcast Multi-media 8529.10.20 systems and parts thereof
Free ...
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «PARABOLIC AERIAL»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
parabolic aerial w wiadomościach.
The fickleness of the silicon-drift detector
... has a concentric annular structure; i.e. the rings have the same centre but increase in radius, something like a parabolic aerial in microformat. «R & D Magazine, Mar 12»
