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Parabolic antenna
Videos
A parabolic antenna is an antenna that uses a parabolic reflector, a curved surface with the cross-sectional shape of a parabola, to direct the radio waves. The most common form is shaped like a dish
A 28.5 meter parabolic satellite communications antenna at Erdfunkstelle Raisting (Raisting Earth Station), Bavaria, Germany, the biggest facility for
A 28.5 meter parabolic satellite communications antenna at Erdfunkstelle Raisting (Raisting Earth Station), Bavaria, Germany, the biggest facility for satellite communication in the world. It has a Cassegrain-type feed, transmits at 6 Ghz and receives at 4 Ghz with a gain of 64.2 dB
Wire grid-type parabolic antenna used for MMDS data link at a frequency of 2.5-2.7 GHz. It is fed by a vertical dipole under the small aluminum reflec
Wire grid-type parabolic antenna used for MMDS data link at a frequency of 2.5-2.7 GHz. It is fed by a vertical dipole under the small aluminum reflector on the boom. It radiates vertically polarized microwaves.
Shrouded microwave relay dishes on a communications tower in Australia
Shrouded microwave relay dishes on a communications tower in Australia
Cassegrain antenna on the Voyager spacecraft, 1977.
Cassegrain antenna on the Voyager spacecraft, 1977.
Satellite dish
Videos
A satellite dish is a dish-shaped type of parabolic antenna designed to receive or transmit information by radio waves to or from a communication satellite. The term most commonly means a dish which r
Parabolic antenna
…television signals are transmitted from the satellite on two separate channels at the same frequency using right and left circular polarization. In a home satellite dish, these are received by two small monopole antennas in the feed horn, oriented at right angles. Each antenna is connected to a separate receiver. If the…
Sat finder
Sat finder
Special dish for up to 16 satellite positions (Ku-band)
Special dish for up to 16 satellite positions (Ku-band)
General Electric satellite dish for DirecTV satellite television.
General Electric satellite dish for DirecTV satellite television.
Sky "minidish".
Sky "minidish".