Old parabolic offset antenna attached to the wall of a wooden wall.

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  • Photo title: Old parabolic offset antenna attached to the wall of a wooden wall.
  • Author: Rechitansorin
  • Cover photo description:
  • Parabolic antenna for receiving satellite TV transmissions attached to the wall of a wooden house. DBS TV - Direct Broadcast satellite television, also known as "Direct-to Home television" (DTHTV), allows reception with parabolic antennas. The satellite signal is a weak signal from a long distance that can be received with a satellite dish. The antenna reflects the signal at the focal point where a device called a "feedhorn" (waveguide) is mounted which leads the signal to the receiving element, called a "low noise block" (English: low-noise block - LNB or low noise-converter LNC). There are two types of parabolic antennas, called "offset" and "prime focus". Offset antennas: have the LNB receiving element located eccentrically to the center of the antenna, in a secondary focus they generally have a diameter of up to 1.8m. Prime focus antennas: the LNB is located in the center of the antenna in the main focus they are larger, 3m, or even 3.5m in diameter.
  • Image ID:317569549
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Keywords for Facebook, Twitter and LinkedIn timeline photos

sattelite dish low noise block parabolic antenna receiving satellite transmissions attached wall wooden house dbs direct broadcast television home dthtv reception antennas signal weak long distance dish reflects focal point device feedhorn waveguide mounted leads element low noise lnb noise converter lnc types antennas offset prime focus element eccentrically center antenna secondary focus diameter communications television

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