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An artificial satellite used for telecommunications is not a simple passive reflector. It's actually an active radio repeater; that is, it incorporates a radio receiver and transmitter ... usually several of them ... along with their antennas. In doing its job, it receives the signals aimed at it, on the frequency that it's built for, and retransmits the information at high power back down to the surface ... for example, to all those little TV dishes on most of the houses in some neighborhoods. There are thousands of "microwave radio repeaters" all over the US, usually on the ground right next to those towers you see everywhere with the 'dish' antennas mounted on them. The TV satellite does exactly the same job as the terrestrial repeater. It just happens to be working over links of more than 22,000 miles. (With no air over most of the distance, that's actually a pretty easy job for radio engineers these days.)
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What carries a signal from a satellite to a dish?
the alternator
How does a satellite dish receive signal?
it receives it by signals
How do satellites and TV signals work?
Satellite TV Providers transmits the signals through their satellite dish converting it first from digital signals to analog signals. These signals which were converted will be transmitted to the satellite. The satellite will then transmit the analog signals per request of the satellite dish connected to the receiver of the subscriber. Once signals are received, it will be converted back to digital signals which can be read by the receiver and be displayed to the television.
How does a DSTV decoder work?
The DSTV decoder connects to a Satellite Dish on the top of your house. That dish receives a digital satellite television (DSTV) signal. Your decoder then decodes this signal and outputs it into your TV.
How does the proper satellite signal get to the TV channel?
The correct signal for satellite TV is determined by the direction the satellite dish is pointed. DirecTV and Dish Network signals come out of the Southern sky from the direction directly above Texas. Many other satellites orbit the earth and send out audio and video signals of all different types and formats. Simply put, a satellite dish is like a catchers mitt and will catch any signal coming from the satellite it is aimed towards. The signal received will need to be properly matched with the in house receivers and equipment in order to work properly. For example, if a Dish Network dish is aimed towards a DirecTV satellite signal, the system will not work.
What causes the sporadic loss of satellite signal?
The satellite signal uses microwave radiation and water absorbs microwaves. So when it rains or there are thick clouds the signal from the satellite gets absorbed and if enough is lost by this process your Dish Network receiver will lose signal
Are the requirements to be allowed to set up satellite dish equipment in Toronto, Ontario?
There are no requirements to set up a satellite dish if you are just looking to receive a signal. There are signal transmitting requirements if you wish to project a signal that goes through licensing, content, and national standards.
Why is a satellite dish round?
Each satellite TV dish can be a different shape depending on what provider you have. Dish Network satellites are more round -- the reason they are round is to get the best possible signal using the LNB (a device attached to the dish) and the specific curvature of the dish; since all TV, Cable and satellite providers use some form of satellite to get your programming each dish is a slightly different shape depending upon what satellite they are pointing to in the sky.
What makes satellite television different from broadcast television?
Satellite television requires the installation of a satellite dish which receives the television signal from satellites orbiting the earth. Regular television uses antenna to pick up signal from broadcasting towers. Satellite television typically offers more channels and program options than regular television.
Why do LNB's have to be mounted close to the satellite dish?
The LNB takes the signal reflected off the dish, sends that signal through the coax cable to the receiver, where the receiver decodes the signal unlocking the channels you subscribe to.
Will a satellite dish receive a signal if its installed in the attic?
No, it will definitely not. It has to be outside, and facing the sky. If it is covered up in the attick, it cannot get signal.
How well does satellite tv work in Tennessee?
You can get satellite TV to work virtually anywhere as long as you have a clear line of sight for the signal. Each company (e.g. Dish satellite , DirecTV) has different satellite orbitals, so it will vary by company as to where your Dish is pointed.
